# Static Call Graph for image .\objects\AT32F403ARGT7_CS1237.axf

#<CALLGRAPH># ARM Linker, 6220000: Last Updated: Fri Mar 20 14:03:05 2026

### Maximum Stack Usage = 324 bytes + Unknown(Functions without stacksize, Cycles, Untraceable Function Pointers)

### Call chain for Maximum Stack Depth:

_printf_f ⇒ _printf_fp_dec ⇒ _printf_fp_dec_real ⇒ _fp_digits ⇒ _btod_etento ⇒ _btod_emul ⇒ _e2e

### Functions with no stack information

- __user_initial_stackheap

### Mutually Recursive functions

- ACC_IRQHandler ⇒ ACC_IRQHandler
- BusFault_Handler ⇒ BusFault_Handler
- HardFault_Handler ⇒ HardFault_Handler
- MemManage_Handler ⇒ MemManage_Handler
- UsageFault_Handler ⇒ UsageFault_Handler

  ### Function Pointers

  - ACC_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - ADC1_2_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - ADC3_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - BusFault_Handler from at32f403a_407_int.o(.text.BusFault_Handler) referenced from startup_at32f403a_407.o(RESET)
  - CAN1_RX1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - CAN1_SE_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - CAN2_RX0_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - CAN2_RX1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - CAN2_SE_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - CAN2_TX_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - CRM_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA1_Channel1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA1_Channel2_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA1_Channel3_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA1_Channel4_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA1_Channel5_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA1_Channel6_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA1_Channel7_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA2_Channel1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA2_Channel2_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA2_Channel3_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA2_Channel4_5_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DMA2_Channel6_7_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - DebugMon_Handler from at32f403a_407_int.o(.text.DebugMon_Handler) referenced from startup_at32f403a_407.o(RESET)
  - EMAC_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EMAC_WKUP_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EXINT0_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EXINT15_10_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EXINT1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EXINT2_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EXINT3_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EXINT4_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - EXINT9_5_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - FLASH_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - HardFault_Handler from at32f403a_407_int.o(.text.HardFault_Handler) referenced from startup_at32f403a_407.o(RESET)
  - I2C1_ERR_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - I2C1_EVT_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - I2C2_ERR_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - I2C2_EVT_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - I2C3_ERR_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - I2C3_EVT_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - MemManage_Handler from at32f403a_407_int.o(.text.MemManage_Handler) referenced from startup_at32f403a_407.o(RESET)
  - NMI_Handler from at32f403a_407_int.o(.text.NMI_Handler) referenced from startup_at32f403a_407.o(RESET)
  - PVM_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - PendSV_Handler from at32f403a_407_int.o(.text.PendSV_Handler) referenced from startup_at32f403a_407.o(RESET)
  - RTCAlarm_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - RTC_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - Reset_Handler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - SDIO1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - SDIO2_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - SPI1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - SPI2_I2S2EXT_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - SPI3_I2S3EXT_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - SPI4_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - SVC_Handler from at32f403a_407_int.o(.text.SVC_Handler) referenced from startup_at32f403a_407.o(RESET)
  - SysTick_Handler from at32f403a_407_int.o(.text.SysTick_Handler) referenced from startup_at32f403a_407.o(RESET)
  - SystemInit from system_at32f403a_407.o(.text.SystemInit) referenced from startup_at32f403a_407.o(.text)
  - TAMPER_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR1_BRK_TMR9_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR1_CH_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR1_OVF_TMR10_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR1_TRG_HALL_TMR11_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR2_GLOBAL_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR3_GLOBAL_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR4_GLOBAL_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR5_GLOBAL_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR6_GLOBAL_IRQHandler from at32f403a_407_int.o(.text.TMR6_GLOBAL_IRQHandler) referenced from startup_at32f403a_407.o(RESET)
  - TMR7_GLOBAL_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR8_BRK_TMR12_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR8_CH_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR8_OVF_TMR13_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - TMR8_TRG_HALL_TMR14_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - UART4_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - UART5_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - UART7_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - UART8_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USART1_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USART2_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USART3_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USART6_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USBFSWakeUp_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USBFS_H_CAN1_TX_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USBFS_L_CAN1_RX0_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USBFS_MAPH_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - USBFS_MAPL_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - UsageFault_Handler from at32f403a_407_int.o(.text.UsageFault_Handler) referenced from startup_at32f403a_407.o(RESET)
  - WWDT_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - XMC_IRQHandler from startup_at32f403a_407.o(.text) referenced from startup_at32f403a_407.o(RESET)
  - __main from __main.o(!!!main) referenced from startup_at32f403a_407.o(.text)
  - _printf_input_char from _printf_char_common.o(.text) referenced from _printf_char_common.o(.text)
  - fputc from wk_system.o(.text.fputc) referenced from _printf_char_file.o(.text)

  ### Global Symbols

  __main (Thumb, 8 bytes, Stack size 0 bytes, __main.o(!!!main))
  [Calls]

  - >> __rt_entry
  - >> __scatterload
  [Address Reference Count : 1]
  - startup_at32f403a_407.o(.text)

  __scatterload (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter))
  [Called By]

  - >> __main

  __scatterload_rt2 (Thumb, 84 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)
  [Calls]

  - >> __rt_entry

  __scatterload_rt2_thumb_only (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)

  __scatterload_loop (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)

  __scatterload_copy (Thumb, 26 bytes, Stack size unknown bytes, __scatter_copy.o(!!handler_copy), UNUSED)
  [Calls]

  - >> __scatterload_copy
  [Called By]
  - >> __scatterload_copy

  __scatterload_null (Thumb, 2 bytes, Stack size unknown bytes, __scatter.o(!!handler_null), UNUSED)

  __scatterload_zeroinit (Thumb, 28 bytes, Stack size unknown bytes, __scatter_zi.o(!!handler_zi), UNUSED)

  _printf_f (Thumb, 0 bytes, Stack size unknown bytes, _printf_f.o(.ARM.Collect$$_printf_percent$$00000003))
  [Stack]

  - Max Depth = 324 + Unknown Stack Size
  - Call Chain = _printf_f ⇒ _printf_fp_dec ⇒ _printf_fp_dec_real ⇒ _fp_digits ⇒ _btod_etento ⇒ _btod_emul ⇒ _e2e
  [Calls]
  - >> _printf_fp_dec

  _printf_percent (Thumb, 0 bytes, Stack size unknown bytes, _printf_percent.o(.ARM.Collect$$_printf_percent$$00000000))
  [Called By]

  - >> __printf

  _printf_d (Thumb, 0 bytes, Stack size unknown bytes, _printf_d.o(.ARM.Collect$$_printf_percent$$00000009))
  [Stack]

  - Max Depth = 56 + Unknown Stack Size
  - Call Chain = _printf_d ⇒ _printf_int_dec ⇒ _printf_int_common
  [Calls]
  - >> _printf_int_dec

  _printf_percent_end (Thumb, 0 bytes, Stack size unknown bytes, _printf_percent_end.o(.ARM.Collect$$_printf_percent$$00000017))

  __rt_lib_init (Thumb, 0 bytes, Stack size unknown bytes, libinit.o(.ARM.Collect$$libinit$$00000000))
  [Called By]

  - >> __rt_entry_li

  __rt_lib_init_fp_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000001))
  [Calls]

  - >> _fp_init

  __rt_lib_init_heap_2 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000007))
  [Stack]

  - Max Depth = 56 + Unknown Stack Size
  - Call Chain = __rt_lib_init_heap_2 ⇒ _init_alloc ⇒ __rt_SIGRTMEM ⇒ __rt_SIGRTMEM_inner ⇒ __default_signal_display
  [Calls]
  - >> _init_alloc

  __rt_lib_init_preinit_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000006))

  __rt_lib_init_relocate_pie_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000004))

  __rt_lib_init_heap_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000C))

  __rt_lib_init_lc_common (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000011))
  [Calls]

  - >> __rt_locale

  __rt_lib_init_rand_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000010))

  __rt_lib_init_user_alloc_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000E))

  __rt_lib_init_lc_collate_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000013))

  __rt_lib_init_lc_ctype_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000015))

  __rt_lib_init_lc_monetary_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000017))

  __rt_lib_init_lc_numeric_2 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000018))
  [Stack]

  - Max Depth = 16 + Unknown Stack Size
  - Call Chain = __rt_lib_init_lc_numeric_2 ⇒ _get_lc_numeric ⇒ strcmp
  [Calls]
  - >> _get_lc_numeric

  __rt_lib_init_atexit_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001D))

  __rt_lib_init_clock_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000023))

  __rt_lib_init_fp_trap_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000021))

  __rt_lib_init_getenv_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000025))

  __rt_lib_init_lc_numeric_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000019))

  __rt_lib_init_lc_time_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001B))

  __rt_lib_init_signal_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001F))

  __rt_lib_init_stdio_2 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000026))
  [Stack]

  - Max Depth = 128 + Unknown Stack Size
  - Call Chain = __rt_lib_init_stdio_2 ⇒ _initio ⇒ freopen ⇒ _fclose_internal ⇒ _fflush ⇒ _writebuf
  [Calls]
  - >> _initio

  __rt_lib_init_alloca_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000030))

  __rt_lib_init_argv_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002E))

  __rt_lib_init_cpp_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000034))

  __rt_lib_init_exceptions_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000032))

  __rt_lib_init_return (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000035))

  __rt_lib_init_stdio_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000027))

  __rt_lib_shutdown (Thumb, 0 bytes, Stack size unknown bytes, libshutdown.o(.ARM.Collect$$libshutdown$$00000000))
  [Called By]

  - >> __rt_exit_ls

  __rt_lib_shutdown_cpp_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000002))

  __rt_lib_shutdown_stdio_2 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000003))
  [Stack]

  - Max Depth = 112 + Unknown Stack Size
  - Call Chain = __rt_lib_shutdown_stdio_2 ⇒ _terminateio ⇒ _fclose_internal ⇒ _fflush ⇒ _writebuf
  [Calls]
  - >> _terminateio

  __rt_lib_shutdown_fp_trap_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000007))

  __rt_lib_shutdown_heap_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000F))

  __rt_lib_shutdown_return (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000010))

  __rt_lib_shutdown_signal_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000A))

  __rt_lib_shutdown_stdio_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000004))

  __rt_lib_shutdown_user_alloc_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000C))

  __rt_entry (Thumb, 0 bytes, Stack size unknown bytes, __rtentry.o(.ARM.Collect$$rtentry$$00000000))
  [Called By]

  - >> __main
  - >> __scatterload_rt2

  __rt_entry_presh_1 (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$00000002))

  __rt_entry_sh (Thumb, 0 bytes, Stack size unknown bytes, __rtentry4.o(.ARM.Collect$$rtentry$$00000004))
  [Stack]

  - Max Depth = 8 + Unknown Stack Size
  - Call Chain = __rt_entry_sh ⇒ __user_setup_stackheap
  [Calls]
  - >> __user_setup_stackheap

  __rt_entry_li (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$0000000A))
  [Calls]

  - >> __rt_lib_init

  __rt_entry_postsh_1 (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$00000009))

  __rt_entry_main (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$0000000D))
  [Stack]

  - Max Depth = 128 + Unknown Stack Size
  - Call Chain = __rt_entry_main ⇒ main ⇒ __2printf ⇒ _printf_char_file ⇒ _printf_char_common ⇒ __printf
  [Calls]
  - >> main
  - >> exit

  __rt_entry_postli_1 (Thumb, 0 bytes, Stack size unknown bytes, __rtentry2.o(.ARM.Collect$$rtentry$$0000000C))

  __rt_exit (Thumb, 0 bytes, Stack size unknown bytes, rtexit.o(.ARM.Collect$$rtexit$$00000000))
  [Called By]

  - >> exit

  __rt_exit_ls (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000003))
  [Calls]

  - >> __rt_lib_shutdown

  __rt_exit_prels_1 (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000002))

  __rt_exit_exit (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000004))
  [Calls]

  - >> _sys_exit

  Reset_Handler (Thumb, 8 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  ACC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Calls]

  - >> ACC_IRQHandler
  [Called By]
  - >> ACC_IRQHandler
  [Address Reference Count : 1]
  - startup_at32f403a_407.o(RESET)

  ADC1_2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  ADC3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  CAN1_RX1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  CAN1_SE_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  CAN2_RX0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  CAN2_RX1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  CAN2_SE_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  CAN2_TX_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  CRM_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA1_Channel1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA1_Channel2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA1_Channel3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA1_Channel4_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA1_Channel5_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA1_Channel6_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA1_Channel7_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA2_Channel1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA2_Channel2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA2_Channel3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA2_Channel4_5_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  DMA2_Channel6_7_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EMAC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EMAC_WKUP_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EXINT0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EXINT15_10_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EXINT1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EXINT2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EXINT3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EXINT4_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  EXINT9_5_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  FLASH_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  I2C1_ERR_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  I2C1_EVT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  I2C2_ERR_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  I2C2_EVT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  I2C3_ERR_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  I2C3_EVT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  PVM_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  RTCAlarm_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  RTC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SDIO1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SDIO2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SPI1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SPI2_I2S2EXT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SPI3_I2S3EXT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SPI4_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TAMPER_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR1_BRK_TMR9_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR1_CH_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR1_OVF_TMR10_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR1_TRG_HALL_TMR11_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR2_GLOBAL_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR3_GLOBAL_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR4_GLOBAL_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR5_GLOBAL_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR7_GLOBAL_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR8_BRK_TMR12_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR8_CH_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR8_OVF_TMR13_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  TMR8_TRG_HALL_TMR14_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  UART4_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  UART5_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  UART7_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  UART8_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USART1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USART2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USART3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USART6_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USBFSWakeUp_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USBFS_H_CAN1_TX_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USBFS_L_CAN1_RX0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USBFS_MAPH_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  USBFS_MAPL_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  WWDT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  XMC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_at32f403a_407.o(.text))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  __user_initial_stackheap (Thumb, 0 bytes, Stack size unknown bytes, startup_at32f403a_407.o(.text))
  [Called By]

  - >> __user_setup_stackheap

  __2printf (Thumb, 20 bytes, Stack size 24 bytes, noretval__2printf.o(.text))
  [Stack]

  - Max Depth = 128 + Unknown Stack Size
  - Call Chain = __2printf ⇒ _printf_char_file ⇒ _printf_char_common ⇒ __printf
  [Calls]
  - >> _printf_char_file
  [Called By]
  - >> main

  _printf_int_dec (Thumb, 104 bytes, Stack size 24 bytes, _printf_dec.o(.text))
  [Stack]

  - Max Depth = 56
  - Call Chain = _printf_int_dec ⇒ _printf_int_common
  [Calls]
  - >> _printf_int_common
  [Called By]
  - >> _printf_d

  __printf (Thumb, 184 bytes, Stack size 24 bytes, __printf_ss.o(.text))
  [Stack]

  - Max Depth = 24 + Unknown Stack Size
  - Call Chain = __printf
  [Calls]
  - >> _printf_percent
  [Called By]
  - >> _printf_char_common

  __use_two_region_memory (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

  __rt_heap_escrow (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

  __rt_heap_expand (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

  _printf_int_common (Thumb, 178 bytes, Stack size 32 bytes, _printf_intcommon.o(.text))
  [Stack]

  - Max Depth = 32
  - Call Chain = _printf_int_common
  [Called By]
  - >> _printf_int_dec

  _printf_fp_dec_real (Thumb, 620 bytes, Stack size 104 bytes, _printf_fp_dec.o(.text))
  [Stack]

  - Max Depth = 324
  - Call Chain = _printf_fp_dec_real ⇒ _fp_digits ⇒ _btod_etento ⇒ _btod_emul ⇒ _e2e
  [Calls]
  - >> __ARM_fpclassify
  - >> _printf_fp_infnan
  - >> __rt_locale
  - >> _fp_digits
  [Called By]
  - >> _printf_fp_dec

  _printf_char_file (Thumb, 32 bytes, Stack size 16 bytes, _printf_char_file.o(.text))
  [Stack]

  - Max Depth = 104 + Unknown Stack Size
  - Call Chain = _printf_char_file ⇒ _printf_char_common ⇒ __printf
  [Calls]
  - >> ferror
  - >> _printf_char_common
  [Called By]
  - >> __2printf

  __rt_locale (Thumb, 8 bytes, Stack size 0 bytes, rt_locale_intlibspace.o(.text))
  [Called By]

  - >> _printf_fp_dec_real
  - >> __rt_lib_init_lc_common

  _ll_udiv10 (Thumb, 138 bytes, Stack size 12 bytes, lludiv10.o(.text))
  [Stack]

  - Max Depth = 12
  - Call Chain = _ll_udiv10
  [Called By]
  - >> _fp_digits

  _printf_char_common (Thumb, 32 bytes, Stack size 64 bytes, _printf_char_common.o(.text))
  [Stack]

  - Max Depth = 88 + Unknown Stack Size
  - Call Chain = _printf_char_common ⇒ __printf
  [Calls]
  - >> __printf
  [Called By]
  - >> _printf_char_file

  _printf_fp_infnan (Thumb, 112 bytes, Stack size 24 bytes, _printf_fp_infnan.o(.text))
  [Stack]

  - Max Depth = 24
  - Call Chain = _printf_fp_infnan
  [Called By]
  - >> _printf_fp_dec_real

  _btod_etento (Thumb, 224 bytes, Stack size 72 bytes, bigflt0.o(.text))
  [Stack]

  - Max Depth = 124
  - Call Chain = _btod_etento ⇒ _btod_emul ⇒ _e2e
  [Calls]
  - >> _btod_emul
  - >> _btod_ediv
  [Called By]
  - >> _fp_digits

  ferror (Thumb, 8 bytes, Stack size 0 bytes, ferror.o(.text))
  [Called By]

  - >> _printf_char_file

  _initio (Thumb, 210 bytes, Stack size 8 bytes, initio.o(.text))
  [Stack]

  - Max Depth = 128 + Unknown Stack Size
  - Call Chain = _initio ⇒ freopen ⇒ _fclose_internal ⇒ _fflush ⇒ _writebuf
  [Calls]
  - >> __aeabi_memclr4
  - >> __rt_SIGRTRED
  - >> freopen
  - >> setvbuf
  [Called By]
  - >> __rt_lib_init_stdio_2

  _terminateio (Thumb, 56 bytes, Stack size 16 bytes, initio.o(.text))
  [Stack]

  - Max Depth = 112 + Unknown Stack Size
  - Call Chain = _terminateio ⇒ _fclose_internal ⇒ _fflush ⇒ _writebuf
  [Calls]
  - >> _fclose_internal
  - >> free
  [Called By]
  - >> __rt_lib_shutdown_stdio_2

  __user_libspace (Thumb, 8 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)

  __user_perproc_libspace (Thumb, 0 bytes, Stack size 0 bytes, libspace.o(.text))
  [Called By]

  - >> __user_setup_stackheap

  __user_perthread_libspace (Thumb, 0 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)

  __user_setup_stackheap (Thumb, 74 bytes, Stack size 8 bytes, sys_stackheap_outer.o(.text))
  [Stack]

  - Max Depth = 8 + Unknown Stack Size
  - Call Chain = __user_setup_stackheap
  [Calls]
  - >> __user_perproc_libspace
  - >> __user_initial_stackheap
  [Called By]
  - >> __rt_entry_sh

  free (Thumb, 78 bytes, Stack size 16 bytes, h1_free.o(.text))
  [Stack]

  - Max Depth = 16
  - Call Chain = free
  [Calls]
  - >> __rt_heap_descriptor
  [Called By]
  - >> _fclose_internal
  - >> _terminateio
  - >> __Heap_ProvideMemory

  setvbuf (Thumb, 70 bytes, Stack size 16 bytes, setvbuf.o(.text))
  [Stack]

  - Max Depth = 16
  - Call Chain = setvbuf
  [Called By]
  - >> _initio

  freopen (Thumb, 160 bytes, Stack size 24 bytes, fopen.o(.text))
  [Stack]

  - Max Depth = 120 + Unknown Stack Size
  - Call Chain = freopen ⇒ _fclose_internal ⇒ _fflush ⇒ _writebuf
  [Calls]
  - >> _sys_open
  - >> _fclose_internal
  - >> _fseek
  [Called By]
  - >> fopen
  - >> _initio

  fopen (Thumb, 74 bytes, Stack size 24 bytes, fopen.o(.text), UNUSED)
  [Calls]

  - >> __aeabi_memclr4
  - >> freopen
  - >> malloc

  _fclose_internal (Thumb, 76 bytes, Stack size 32 bytes, fclose.o(.text))
  [Stack]

  - Max Depth = 96 + Unknown Stack Size
  - Call Chain = _fclose_internal ⇒ _fflush ⇒ _writebuf
  [Calls]
  - >> _sys_close
  - >> __aeabi_memclr4
  - >> free
  - >> _fflush
  [Called By]
  - >> freopen
  - >> _terminateio

  fclose (Thumb, 0 bytes, Stack size 32 bytes, fclose.o(.text), UNUSED)

  exit (Thumb, 18 bytes, Stack size 8 bytes, exit.o(.text))
  [Stack]

  - Max Depth = 8 + Unknown Stack Size
  - Call Chain = exit
  [Calls]
  - >> __rt_exit
  [Called By]
  - >> __rt_entry_main

  __rt_SIGRTRED (Thumb, 14 bytes, Stack size 8 bytes, defsig_rtred_outer.o(.text))
  [Stack]

  - Max Depth = 32
  - Call Chain = __rt_SIGRTRED ⇒ __rt_SIGRTRED_inner ⇒ __default_signal_display
  [Calls]
  - >> __rt_SIGRTRED_inner
  - >> __sig_exit
  [Called By]
  - >> _initio

  __aeabi_memclr4 (Thumb, 0 bytes, Stack size unknown bytes, rt_memclr_w.o(.text))
  [Called By]

  - >> _fclose_internal
  - >> fopen
  - >> _initio

  __aeabi_memclr8 (Thumb, 0 bytes, Stack size unknown bytes, rt_memclr_w.o(.text), UNUSED)

  __rt_memclr_w (Thumb, 0 bytes, Stack size unknown bytes, rt_memclr_w.o(.text), UNUSED)

  _memset_w (Thumb, 74 bytes, Stack size 4 bytes, rt_memclr_w.o(.text), UNUSED)

  strcmp (Thumb, 124 bytes, Stack size 8 bytes, strcmpv7em.o(.text))
  [Stack]

  - Max Depth = 8
  - Call Chain = strcmp
  [Called By]
  - >> _get_lc_numeric

  __rt_heap_descriptor (Thumb, 8 bytes, Stack size 0 bytes, rt_heap_descriptor_intlibspace.o(.text))
  [Called By]

  - >> free
  - >> malloc
  - >> _init_alloc

  __use_no_heap (Thumb, 2 bytes, Stack size 0 bytes, hguard.o(.text), UNUSED)

  __heap$guard (Thumb, 2 bytes, Stack size 0 bytes, hguard.o(.text), UNUSED)

  _terminate_user_alloc (Thumb, 2 bytes, Stack size 0 bytes, init_alloc.o(.text), UNUSED)

  _init_user_alloc (Thumb, 2 bytes, Stack size 0 bytes, init_alloc.o(.text), UNUSED)

  __Heap_Full (Thumb, 34 bytes, Stack size 16 bytes, init_alloc.o(.text), UNUSED)
  [Calls]

  - >> __Heap_ProvideMemory
  [Called By]
  - >> malloc

  __Heap_Broken (Thumb, 6 bytes, Stack size 0 bytes, init_alloc.o(.text), UNUSED)
  [Calls]

  - >> __rt_SIGRTMEM

  _init_alloc (Thumb, 94 bytes, Stack size 24 bytes, init_alloc.o(.text))
  [Stack]

  - Max Depth = 56
  - Call Chain = _init_alloc ⇒ __rt_SIGRTMEM ⇒ __rt_SIGRTMEM_inner ⇒ __default_signal_display
  [Calls]
  - >> __rt_SIGRTMEM
  - >> __Heap_ProvideMemory
  - >> __Heap_Initialize
  - >> __rt_heap_descriptor
  [Called By]
  - >> __rt_lib_init_heap_2

  malloc (Thumb, 94 bytes, Stack size 16 bytes, h1_alloc.o(.text), UNUSED)
  [Calls]

  - >> __Heap_Full
  - >> __rt_heap_descriptor
  [Called By]
  - >> fopen

  _fseek (Thumb, 242 bytes, Stack size 24 bytes, fseek.o(.text))
  [Stack]

  - Max Depth = 32
  - Call Chain = _fseek ⇒ _ftell_internal
  [Calls]
  - >> _sys_flen
  - >> _sys_istty
  - >> _ftell_internal
  - >> _seterr
  [Called By]
  - >> freopen

  fseek (Thumb, 0 bytes, Stack size 24 bytes, fseek.o(.text), UNUSED)

  _seterr (Thumb, 20 bytes, Stack size 0 bytes, stdio.o(.text))
  [Called By]

  - >> _writebuf
  - >> _fseek

  _writebuf (Thumb, 108 bytes, Stack size 48 bytes, stdio.o(.text))
  [Stack]

  - Max Depth = 48
  - Call Chain = _writebuf
  [Calls]
  - >> _sys_seek
  - >> _sys_write
  - >> _seterr
  [Called By]
  - >> _fflush

  _fflush (Thumb, 70 bytes, Stack size 16 bytes, stdio.o(.text))
  [Stack]

  - Max Depth = 64
  - Call Chain = _fflush ⇒ _writebuf
  [Calls]
  - >> _writebuf
  [Called By]
  - >> _fclose_internal
  - >> _deferredlazyseek

  _deferredlazyseek (Thumb, 60 bytes, Stack size 8 bytes, stdio.o(.text), UNUSED)
  [Calls]

  - >> _fflush

  __sig_exit (Thumb, 10 bytes, Stack size 0 bytes, defsig_exit.o(.text))
  [Calls]

  - >> _sys_exit
  [Called By]
  - >> __rt_SIGRTRED
  - >> __rt_SIGRTMEM

  __rt_SIGRTRED_inner (Thumb, 14 bytes, Stack size 8 bytes, defsig_rtred_inner.o(.text))
  [Stack]

  - Max Depth = 24
  - Call Chain = __rt_SIGRTRED_inner ⇒ __default_signal_display
  [Calls]
  - >> __default_signal_display
  [Called By]
  - >> __rt_SIGRTRED

  __Heap_Initialize (Thumb, 8 bytes, Stack size 0 bytes, h1_init.o(.text))
  [Called By]

  - >> _init_alloc

  _maybe_terminate_alloc (Thumb, 0 bytes, Stack size 0 bytes, maybetermalloc1.o(.text), UNUSED)

  __Heap_DescSize (Thumb, 4 bytes, Stack size 0 bytes, h1_init.o(.text), UNUSED)

  __Heap_ProvideMemory (Thumb, 52 bytes, Stack size 0 bytes, h1_extend.o(.text))
  [Stack]

  - Max Depth = 16
  - Call Chain = __Heap_ProvideMemory ⇒ free
  [Calls]
  - >> free
  [Called By]
  - >> _init_alloc
  - >> __Heap_Full

  _ftell_internal (Thumb, 66 bytes, Stack size 8 bytes, ftell.o(.text))
  [Stack]

  - Max Depth = 8
  - Call Chain = _ftell_internal
  [Calls]
  - >> __aeabi_errno_addr
  [Called By]
  - >> _fseek

  ftell (Thumb, 0 bytes, Stack size 8 bytes, ftell.o(.text), UNUSED)

  __default_signal_display (Thumb, 50 bytes, Stack size 16 bytes, defsig_general.o(.text))
  [Stack]

  - Max Depth = 16
  - Call Chain = __default_signal_display
  [Calls]
  - >> _ttywrch
  [Called By]
  - >> __rt_SIGRTMEM_inner
  - >> __rt_SIGRTRED_inner

  __rt_SIGRTMEM (Thumb, 14 bytes, Stack size 8 bytes, defsig_rtmem_outer.o(.text))
  [Stack]

  - Max Depth = 32
  - Call Chain = __rt_SIGRTMEM ⇒ __rt_SIGRTMEM_inner ⇒ __default_signal_display
  [Calls]
  - >> __rt_SIGRTMEM_inner
  - >> __sig_exit
  [Called By]
  - >> _init_alloc
  - >> __Heap_Broken

  __aeabi_errno_addr (Thumb, 8 bytes, Stack size 0 bytes, rt_errno_addr_intlibspace.o(.text))
  [Called By]

  - >> _ftell_internal

  __errno$intlibspace (Thumb, 0 bytes, Stack size 0 bytes, rt_errno_addr_intlibspace.o(.text), UNUSED)

  __rt_errno_addr$intlibspace (Thumb, 0 bytes, Stack size 0 bytes, rt_errno_addr_intlibspace.o(.text), UNUSED)

  __rt_SIGRTMEM_inner (Thumb, 22 bytes, Stack size 8 bytes, defsig_rtmem_inner.o(.text))
  [Stack]

  - Max Depth = 24
  - Call Chain = __rt_SIGRTMEM_inner ⇒ __default_signal_display
  [Calls]
  - >> __default_signal_display
  [Called By]
  - >> __rt_SIGRTMEM

  BusFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.BusFault_Handler))
  [Calls]

  - >> BusFault_Handler
  [Called By]
  - >> BusFault_Handler
  [Address Reference Count : 1]
  - startup_at32f403a_407.o(RESET)

  C1237_ReadResult (Thumb, 214 bytes, Stack size 16 bytes, cs1237.o(.text.C1237_ReadResult))
  [Stack]

  - Max Depth = 16
  - Call Chain = C1237_ReadResult
  [Calls]
  - >> gpio_input_data_bit_read
  - >> gpio_bits_set
  - >> gpio_bits_reset
  - >> wk_delay_us
  [Called By]
  - >> Volt_CS1237

  C1237_WriteReg (Thumb, 1868 bytes, Stack size 16 bytes, cs1237.o(.text.C1237_WriteReg))
  [Stack]

  - Max Depth = 16
  - Call Chain = C1237_WriteReg
  [Calls]
  - >> gpio_input_data_bit_read
  - >> gpio_bits_set
  - >> gpio_bits_reset
  - >> wk_delay_us
  [Called By]
  - >> Init_CS1237

  CS1237_ReadReg (Thumb, 1794 bytes, Stack size 16 bytes, cs1237.o(.text.CS1237_ReadReg))
  [Stack]

  - Max Depth = 16
  - Call Chain = CS1237_ReadReg
  [Calls]
  - >> gpio_input_data_bit_read
  - >> gpio_bits_set
  - >> gpio_bits_reset
  - >> wk_delay_us
  [Called By]
  - >> Init_CS1237

  DebugMon_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.DebugMon_Handler))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  HardFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.HardFault_Handler))
  [Calls]

  - >> HardFault_Handler
  [Called By]
  - >> HardFault_Handler
  [Address Reference Count : 1]
  - startup_at32f403a_407.o(RESET)

  Init_CS1237 (Thumb, 108 bytes, Stack size 24 bytes, cs1237.o(.text.Init_CS1237))
  [Stack]

  - Max Depth = 40
  - Call Chain = Init_CS1237 ⇒ CS1237_ReadReg
  [Calls]
  - >> CS1237_ReadReg
  - >> C1237_WriteReg
  - >> gpio_bits_set
  - >> gpio_bits_reset
  - >> gpio_init
  - >> gpio_default_para_init
  [Called By]
  - >> main

  MemManage_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.MemManage_Handler))
  [Calls]

  - >> MemManage_Handler
  [Called By]
  - >> MemManage_Handler
  [Address Reference Count : 1]
  - startup_at32f403a_407.o(RESET)

  NMI_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.NMI_Handler))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  PendSV_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.PendSV_Handler))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SVC_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.SVC_Handler))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SysTick_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.SysTick_Handler))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(RESET)

  SystemInit (Thumb, 136 bytes, Stack size 0 bytes, system_at32f403a_407.o(.text.SystemInit))
  [Address Reference Count : 1]

  - startup_at32f403a_407.o(.text)

  TMR6_GLOBAL_IRQHandler (Thumb, 70 bytes, Stack size 8 bytes, at32f403a_407_int.o(.text.TMR6_GLOBAL_IRQHandler))
  [Stack]

  - Max Depth = 8
  - Call Chain = TMR6_GLOBAL_IRQHandler
  [Calls]
  - >> tmr_flag_clear
  - >> gpio_bits_toggle
  - >> tmr_interrupt_flag_get
  [Address Reference Count : 1]
  - startup_at32f403a_407.o(RESET)

  UsageFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, at32f403a_407_int.o(.text.UsageFault_Handler))
  [Calls]

  - >> UsageFault_Handler
  [Called By]
  - >> UsageFault_Handler
  [Address Reference Count : 1]
  - startup_at32f403a_407.o(RESET)

  Volt_CS1237 (Thumb, 408 bytes, Stack size 40 bytes, cs1237.o(.text.Volt_CS1237))
  [Stack]

  - Max Depth = 72
  - Call Chain = Volt_CS1237 ⇒ __aeabi_dmul
  [Calls]
  - >> C1237_ReadResult
  - >> __aeabi_dmul
  - >> __aeabi_i2d
  - >> __aeabi_ddiv
  [Called By]
  - >> main

  _sys_close (Thumb, 4 bytes, Stack size 0 bytes, wk_system.o(.text._sys_close))
  [Called By]

  - >> _fclose_internal

  _sys_exit (Thumb, 2 bytes, Stack size 0 bytes, wk_system.o(.text._sys_exit))
  [Called By]

  - >> __rt_exit_exit
  - >> __sig_exit

  _sys_flen (Thumb, 4 bytes, Stack size 0 bytes, wk_system.o(.text._sys_flen))
  [Called By]

  - >> _fseek

  _sys_istty (Thumb, 4 bytes, Stack size 0 bytes, wk_system.o(.text._sys_istty))
  [Called By]

  - >> _fseek

  _sys_open (Thumb, 4 bytes, Stack size 0 bytes, wk_system.o(.text._sys_open))
  [Called By]

  - >> freopen

  _sys_seek (Thumb, 6 bytes, Stack size 0 bytes, wk_system.o(.text._sys_seek))
  [Called By]

  - >> _writebuf

  _sys_write (Thumb, 4 bytes, Stack size 0 bytes, wk_system.o(.text._sys_write))
  [Called By]

  - >> _writebuf

  _ttywrch (Thumb, 2 bytes, Stack size 0 bytes, wk_system.o(.text._ttywrch))
  [Called By]

  - >> __default_signal_display

  crm_ahb_div_set (Thumb, 26 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_ahb_div_set))
  [Called By]

  - >> wk_system_clock_config

  crm_apb1_div_set (Thumb, 26 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_apb1_div_set))
  [Called By]

  - >> wk_system_clock_config

  crm_apb2_div_set (Thumb, 26 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_apb2_div_set))
  [Called By]

  - >> wk_system_clock_config

  crm_auto_step_mode_enable (Thumb, 24 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_auto_step_mode_enable))
  [Called By]

  - >> wk_system_clock_config

  crm_clock_source_enable (Thumb, 130 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_clock_source_enable))
  [Called By]

  - >> wk_system_clock_config

  crm_clocks_freq_get (Thumb, 216 bytes, Stack size 16 bytes, at32f403a_407_crm.o(.text.crm_clocks_freq_get))
  [Stack]

  - Max Depth = 16
  - Call Chain = crm_clocks_freq_get
  [Called By]
  - >> usart_init
  - >> wk_timebase_init

  crm_flag_get (Thumb, 26 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_flag_get))
  [Called By]

  - >> wk_system_clock_config

  crm_periph_clock_enable (Thumb, 40 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_periph_clock_enable))
  [Called By]

  - >> wk_periph_clock_config

  crm_pll_config (Thumb, 112 bytes, Stack size 8 bytes, at32f403a_407_crm.o(.text.crm_pll_config))
  [Stack]

  - Max Depth = 8
  - Call Chain = crm_pll_config
  [Called By]
  - >> wk_system_clock_config

  crm_reset (Thumb, 112 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_reset))
  [Called By]

  - >> wk_system_clock_config

  crm_sysclk_switch (Thumb, 58 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_sysclk_switch))
  [Called By]

  - >> wk_system_clock_config

  crm_sysclk_switch_status_get (Thumb, 16 bytes, Stack size 0 bytes, at32f403a_407_crm.o(.text.crm_sysclk_switch_status_get))
  [Called By]

  - >> system_core_clock_update
  - >> wk_system_clock_config

  fputc (Thumb, 48 bytes, Stack size 16 bytes, wk_system.o(.text.fputc))
  [Stack]

  - Max Depth = 16
  - Call Chain = fputc
  [Calls]
  - >> usart_data_transmit
  - >> usart_flag_get
  [Address Reference Count : 1]
  - _printf_char_file.o(.text)

  gpio_bits_reset (Thumb, 4 bytes, Stack size 0 bytes, at32f403a_407_gpio.o(.text.gpio_bits_reset))
  [Called By]

  - >> C1237_ReadResult
  - >> CS1237_ReadReg
  - >> C1237_WriteReg
  - >> Init_CS1237
  - >> wk_gpio_config

  gpio_bits_set (Thumb, 4 bytes, Stack size 0 bytes, at32f403a_407_gpio.o(.text.gpio_bits_set))
  [Called By]

  - >> C1237_ReadResult
  - >> CS1237_ReadReg
  - >> C1237_WriteReg
  - >> Init_CS1237

  gpio_bits_toggle (Thumb, 8 bytes, Stack size 0 bytes, at32f403a_407_gpio.o(.text.gpio_bits_toggle))
  [Called By]

  - >> TMR6_GLOBAL_IRQHandler

  gpio_default_para_init (Thumb, 18 bytes, Stack size 0 bytes, at32f403a_407_gpio.o(.text.gpio_default_para_init))
  [Called By]

  - >> Init_CS1237
  - >> wk_usart1_init
  - >> wk_gpio_config

  gpio_init (Thumb, 498 bytes, Stack size 0 bytes, at32f403a_407_gpio.o(.text.gpio_init))
  [Called By]

  - >> Init_CS1237
  - >> wk_usart1_init
  - >> wk_gpio_config

  gpio_input_data_bit_read (Thumb, 14 bytes, Stack size 0 bytes, at32f403a_407_gpio.o(.text.gpio_input_data_bit_read))
  [Called By]

  - >> C1237_ReadResult
  - >> CS1237_ReadReg
  - >> C1237_WriteReg

  gpio_pin_remap_config (Thumb, 64 bytes, Stack size 16 bytes, at32f403a_407_gpio.o(.text.gpio_pin_remap_config))
  [Stack]

  - Max Depth = 16
  - Call Chain = gpio_pin_remap_config
  [Called By]
  - >> wk_debug_config

  main (Thumb, 72 bytes, Stack size 0 bytes, main.o(.text.main))
  [Stack]

  - Max Depth = 128 + Unknown Stack Size
  - Call Chain = main ⇒ __2printf ⇒ _printf_char_file ⇒ _printf_char_common ⇒ __printf
  [Calls]
  - >> wk_delay_ms
  - >> Volt_CS1237
  - >> Init_CS1237
  - >> wk_tmr6_init
  - >> wk_usart1_init
  - >> wk_gpio_config
  - >> wk_timebase_init
  - >> wk_nvic_config
  - >> wk_debug_config
  - >> wk_periph_clock_config
  - >> wk_system_clock_config
  - >> __2printf
  [Called By]
  - >> __rt_entry_main

  nvic_irq_enable (Thumb, 114 bytes, Stack size 16 bytes, at32f403a_407_misc.o(.text.nvic_irq_enable))
  [Stack]

  - Max Depth = 16
  - Call Chain = nvic_irq_enable
  [Called By]
  - >> wk_nvic_config

  nvic_priority_group_config (Thumb, 32 bytes, Stack size 0 bytes, at32f403a_407_misc.o(.text.nvic_priority_group_config))
  [Called By]

  - >> wk_nvic_config

  system_core_clock_update (Thumb, 168 bytes, Stack size 16 bytes, system_at32f403a_407.o(.text.system_core_clock_update))
  [Stack]

  - Max Depth = 16
  - Call Chain = system_core_clock_update
  [Calls]
  - >> crm_sysclk_switch_status_get
  [Called By]
  - >> wk_system_clock_config

  systick_clock_source_config (Thumb, 24 bytes, Stack size 0 bytes, at32f403a_407_misc.o(.text.systick_clock_source_config))
  [Called By]

  - >> wk_timebase_init

  tmr_base_init (Thumb, 14 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_base_init))
  [Called By]

  - >> wk_tmr6_init

  tmr_cnt_dir_set (Thumb, 18 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_cnt_dir_set))
  [Called By]

  - >> wk_tmr6_init

  tmr_counter_enable (Thumb, 10 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_counter_enable))
  [Called By]

  - >> wk_tmr6_init

  tmr_flag_clear (Thumb, 6 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_flag_clear))
  [Called By]

  - >> TMR6_GLOBAL_IRQHandler

  tmr_interrupt_enable (Thumb, 26 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_interrupt_enable))
  [Called By]

  - >> wk_tmr6_init

  tmr_interrupt_flag_get (Thumb, 20 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_interrupt_flag_get))
  [Called By]

  - >> TMR6_GLOBAL_IRQHandler

  tmr_period_buffer_enable (Thumb, 18 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_period_buffer_enable))
  [Called By]

  - >> wk_tmr6_init

  tmr_primary_mode_select (Thumb, 18 bytes, Stack size 0 bytes, at32f403a_407_tmr.o(.text.tmr_primary_mode_select))
  [Called By]

  - >> wk_tmr6_init

  usart_data_transmit (Thumb, 8 bytes, Stack size 0 bytes, at32f403a_407_usart.o(.text.usart_data_transmit))
  [Called By]

  - >> fputc

  usart_enable (Thumb, 18 bytes, Stack size 0 bytes, at32f403a_407_usart.o(.text.usart_enable))
  [Called By]

  - >> wk_usart1_init

  usart_flag_get (Thumb, 10 bytes, Stack size 0 bytes, at32f403a_407_usart.o(.text.usart_flag_get))
  [Called By]

  - >> fputc

  usart_hardware_flow_control_set (Thumb, 70 bytes, Stack size 0 bytes, at32f403a_407_usart.o(.text.usart_hardware_flow_control_set))
  [Called By]

  - >> wk_usart1_init

  usart_init (Thumb, 174 bytes, Stack size 48 bytes, at32f403a_407_usart.o(.text.usart_init))
  [Stack]

  - Max Depth = 64
  - Call Chain = usart_init ⇒ crm_clocks_freq_get
  [Calls]
  - >> crm_clocks_freq_get
  [Called By]
  - >> wk_usart1_init

  usart_parity_selection_config (Thumb, 58 bytes, Stack size 0 bytes, at32f403a_407_usart.o(.text.usart_parity_selection_config))
  [Called By]

  - >> wk_usart1_init

  usart_receiver_enable (Thumb, 18 bytes, Stack size 0 bytes, at32f403a_407_usart.o(.text.usart_receiver_enable))
  [Called By]

  - >> wk_usart1_init

  usart_transmitter_enable (Thumb, 18 bytes, Stack size 0 bytes, at32f403a_407_usart.o(.text.usart_transmitter_enable))
  [Called By]

  - >> wk_usart1_init

  wk_debug_config (Thumb, 14 bytes, Stack size 0 bytes, wk_debug.o(.text.wk_debug_config))
  [Stack]

  - Max Depth = 16
  - Call Chain = wk_debug_config ⇒ gpio_pin_remap_config
  [Calls]
  - >> gpio_pin_remap_config
  [Called By]
  - >> main

  wk_delay_ms (Thumb, 44 bytes, Stack size 8 bytes, wk_system.o(.text.wk_delay_ms))
  [Stack]

  - Max Depth = 8
  - Call Chain = wk_delay_ms
  [Calls]
  - >> wk_delay_us
  [Called By]
  - >> main

  wk_delay_us (Thumb, 84 bytes, Stack size 0 bytes, wk_system.o(.text.wk_delay_us))
  [Called By]

  - >> C1237_ReadResult
  - >> CS1237_ReadReg
  - >> C1237_WriteReg
  - >> wk_delay_ms

  wk_gpio_config (Thumb, 90 bytes, Stack size 40 bytes, wk_gpio.o(.text.wk_gpio_config))
  [Stack]

  - Max Depth = 40
  - Call Chain = wk_gpio_config
  [Calls]
  - >> gpio_bits_reset
  - >> gpio_init
  - >> gpio_default_para_init
  [Called By]
  - >> main

  wk_nvic_config (Thumb, 96 bytes, Stack size 8 bytes, at32f403a_407_wk_config.o(.text.wk_nvic_config))
  [Stack]

  - Max Depth = 24
  - Call Chain = wk_nvic_config ⇒ nvic_irq_enable
  [Calls]
  - >> nvic_irq_enable
  - >> nvic_priority_group_config
  [Called By]
  - >> main

  wk_periph_clock_config (Thumb, 68 bytes, Stack size 8 bytes, at32f403a_407_wk_config.o(.text.wk_periph_clock_config))
  [Stack]

  - Max Depth = 8
  - Call Chain = wk_periph_clock_config
  [Calls]
  - >> crm_periph_clock_enable
  [Called By]
  - >> main

  wk_system_clock_config (Thumb, 130 bytes, Stack size 8 bytes, at32f403a_407_wk_config.o(.text.wk_system_clock_config))
  [Stack]

  - Max Depth = 24
  - Call Chain = wk_system_clock_config ⇒ system_core_clock_update
  [Calls]
  - >> system_core_clock_update
  - >> crm_sysclk_switch_status_get
  - >> crm_sysclk_switch
  - >> crm_auto_step_mode_enable
  - >> crm_apb1_div_set
  - >> crm_apb2_div_set
  - >> crm_ahb_div_set
  - >> crm_pll_config
  - >> crm_flag_get
  - >> crm_clock_source_enable
  - >> crm_reset
  [Called By]
  - >> main

  wk_timebase_init (Thumb, 72 bytes, Stack size 40 bytes, wk_system.o(.text.wk_timebase_init))
  [Stack]

  - Max Depth = 56
  - Call Chain = wk_timebase_init ⇒ crm_clocks_freq_get
  [Calls]
  - >> systick_clock_source_config
  - >> crm_clocks_freq_get
  [Called By]
  - >> main

  wk_tmr6_init (Thumb, 68 bytes, Stack size 8 bytes, wk_tmr.o(.text.wk_tmr6_init))
  [Stack]

  - Max Depth = 8
  - Call Chain = wk_tmr6_init
  [Calls]
  - >> tmr_interrupt_enable
  - >> tmr_counter_enable
  - >> tmr_primary_mode_select
  - >> tmr_base_init
  - >> tmr_period_buffer_enable
  - >> tmr_cnt_dir_set
  [Called By]
  - >> main

  wk_usart1_init (Thumb, 130 bytes, Stack size 24 bytes, wk_usart.o(.text.wk_usart1_init))
  [Stack]

  - Max Depth = 88
  - Call Chain = wk_usart1_init ⇒ usart_init ⇒ crm_clocks_freq_get
  [Calls]
  - >> usart_enable
  - >> usart_hardware_flow_control_set
  - >> usart_parity_selection_config
  - >> usart_receiver_enable
  - >> usart_transmitter_enable
  - >> usart_init
  - >> gpio_init
  - >> gpio_default_para_init
  [Called By]
  - >> main

  _btod_d2e (Thumb, 62 bytes, Stack size 0 bytes, btod.o(CL$$btod_d2e))
  [Calls]

  - >> _d2e_norm_op1
  [Called By]
  - >> _fp_digits

  _d2e_denorm_low (Thumb, 70 bytes, Stack size 0 bytes, btod.o(CL$$btod_d2e_denorm_low))
  [Called By]

  - >> _d2e_norm_op1

  _d2e_norm_op1 (Thumb, 96 bytes, Stack size 0 bytes, btod.o(CL$$btod_d2e_norm_op1))
  [Calls]

  - >> _d2e_denorm_low
  [Called By]
  - >> _btod_d2e

  __btod_div_common (Thumb, 696 bytes, Stack size 24 bytes, btod.o(CL$$btod_div_common))
  [Stack]

  - Max Depth = 24
  - Call Chain = __btod_div_common
  [Called By]
  - >> _btod_ediv

  _e2e (Thumb, 220 bytes, Stack size 24 bytes, btod.o(CL$$btod_e2e))
  [Stack]

  - Max Depth = 24
  - Call Chain = _e2e
  [Called By]
  - >> _btod_emul
  - >> _btod_ediv

  _btod_ediv (Thumb, 42 bytes, Stack size 28 bytes, btod.o(CL$$btod_ediv))
  [Stack]

  - Max Depth = 52
  - Call Chain = _btod_ediv ⇒ _e2e
  [Calls]
  - >> _e2e
  - >> __btod_div_common
  [Called By]
  - >> _btod_etento
  - >> _fp_digits

  _btod_emul (Thumb, 42 bytes, Stack size 28 bytes, btod.o(CL$$btod_emul))
  [Stack]

  - Max Depth = 52
  - Call Chain = _btod_emul ⇒ _e2e
  [Calls]
  - >> __btod_mult_common
  - >> _e2e
  [Called By]
  - >> _btod_etento
  - >> _fp_digits

  __btod_mult_common (Thumb, 580 bytes, Stack size 16 bytes, btod.o(CL$$btod_mult_common))
  [Stack]

  - Max Depth = 16
  - Call Chain = __btod_mult_common
  [Called By]
  - >> _btod_emul

  __ARM_fpclassify (Thumb, 48 bytes, Stack size 8 bytes, fpclassify.o(i.__ARM_fpclassify))
  [Stack]

  - Max Depth = 8
  - Call Chain = __ARM_fpclassify
  [Called By]
  - >> _printf_fp_dec_real

  _get_lc_numeric (Thumb, 44 bytes, Stack size 8 bytes, lc_numeric_c.o(locale$$code))
  [Stack]

  - Max Depth = 16
  - Call Chain = _get_lc_numeric ⇒ strcmp
  [Calls]
  - >> strcmp
  [Called By]
  - >> __rt_lib_init_lc_numeric_2

  __aeabi_ddiv (Thumb, 0 bytes, Stack size 32 bytes, ddiv.o(x$fpl$ddiv))
  [Stack]

  - Max Depth = 32
  - Call Chain = __aeabi_ddiv
  [Called By]
  - >> Volt_CS1237

  _ddiv (Thumb, 560 bytes, Stack size 32 bytes, ddiv.o(x$fpl$ddiv), UNUSED)
  [Calls]

  - >> __fpl_dretinf
  - >> __fpl_dnaninf

  __aeabi_i2d (Thumb, 0 bytes, Stack size 0 bytes, dflt_clz.o(x$fpl$dflt))
  [Called By]

  - >> Volt_CS1237

  _dflt (Thumb, 46 bytes, Stack size 0 bytes, dflt_clz.o(x$fpl$dflt), UNUSED)

  __aeabi_dmul (Thumb, 0 bytes, Stack size 32 bytes, dmul.o(x$fpl$dmul))
  [Stack]

  - Max Depth = 32
  - Call Chain = __aeabi_dmul
  [Called By]
  - >> Volt_CS1237

  _dmul (Thumb, 332 bytes, Stack size 32 bytes, dmul.o(x$fpl$dmul), UNUSED)
  [Calls]

  - >> __fpl_dretinf
  - >> __fpl_dnaninf

  __fpl_dnaninf (Thumb, 156 bytes, Stack size 16 bytes, dnaninf.o(x$fpl$dnaninf), UNUSED)
  [Called By]

  - >> _dmul
  - >> _ddiv

  __fpl_dretinf (Thumb, 12 bytes, Stack size 0 bytes, dretinf.o(x$fpl$dretinf), UNUSED)
  [Called By]

  - >> _dmul
  - >> _ddiv

  _fp_init (Thumb, 26 bytes, Stack size 0 bytes, fpinit.o(x$fpl$fpinit))
  [Called By]

  - >> __rt_lib_init_fp_1

  __fplib_config_fpu_vfp (Thumb, 0 bytes, Stack size unknown bytes, fpinit.o(x$fpl$fpinit), UNUSED)

  __fplib_config_pureend_doubles (Thumb, 0 bytes, Stack size unknown bytes, fpinit.o(x$fpl$fpinit), UNUSED)

  _printf_fp_dec (Thumb, 4 bytes, Stack size 0 bytes, printf1.o(x$fpl$printf1))
  [Stack]

  - Max Depth = 324
  - Call Chain = _printf_fp_dec ⇒ _printf_fp_dec_real ⇒ _fp_digits ⇒ _btod_etento ⇒ _btod_emul ⇒ _e2e
  [Calls]
  - >> _printf_fp_dec_real
  [Called By]
  - >> _printf_f

  ### Local Symbols

  _fp_digits (Thumb, 432 bytes, Stack size 96 bytes, _printf_fp_dec.o(.text))
  [Stack]

  - Max Depth = 220
  - Call Chain = _fp_digits ⇒ _btod_etento ⇒ _btod_emul ⇒ _e2e
  [Calls]
  - >> _btod_emul
  - >> _btod_ediv
  - >> _btod_d2e
  - >> _btod_etento
  - >> _ll_udiv10
  [Called By]
  - >> _printf_fp_dec_real

  _printf_input_char (Thumb, 10 bytes, Stack size 0 bytes, _printf_char_common.o(.text))
  [Address Reference Count : 1]

  - _printf_char_common.o(.text)

  ### Undefined Global Symbols