# Static Call Graph for image Modbus PWM 4CH\Modbus PWM 4CH.axf

#<CALLGRAPH># ARM Linker, 5060528: Last Updated: Fri Jul 17 16:57:00 2026

### Maximum Stack Usage = 592 bytes + Unknown(Cycles, Untraceable Function Pointers)

### Call chain for Maximum Stack Depth:

main ⇒ Run_PWM4CH_Demo ⇒ Debug_PrintChannel ⇒ Debug_Write ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout

### Mutually Recursive functions

- ADC1_2_IRQHandler ⇒ ADC1_2_IRQHandler
- BusFault_Handler ⇒ BusFault_Handler
- HardFault_Handler ⇒ HardFault_Handler
- MemManage_Handler ⇒ MemManage_Handler
- UsageFault_Handler ⇒ UsageFault_Handler

  ### Function Pointers

  - ADC1_2_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - BusFault_Handler from stm32f1xx_it.o(i.BusFault_Handler) referenced from startup_stm32f103xb.o(RESET)
  - CAN1_RX1_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - CAN1_SCE_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DMA1_Channel1_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DMA1_Channel2_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DMA1_Channel3_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DMA1_Channel4_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DMA1_Channel5_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DMA1_Channel6_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DMA1_Channel7_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - DebugMon_Handler from stm32f1xx_it.o(i.DebugMon_Handler) referenced from startup_stm32f103xb.o(RESET)
  - EXTI0_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - EXTI15_10_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - EXTI1_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - EXTI2_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - EXTI3_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - EXTI4_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - EXTI9_5_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - FLASH_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - HardFault_Handler from stm32f1xx_it.o(i.HardFault_Handler) referenced from startup_stm32f103xb.o(RESET)
  - I2C1_ER_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - I2C1_EV_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - I2C2_ER_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - I2C2_EV_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - MemManage_Handler from stm32f1xx_it.o(i.MemManage_Handler) referenced from startup_stm32f103xb.o(RESET)
  - NMI_Handler from stm32f1xx_it.o(i.NMI_Handler) referenced from startup_stm32f103xb.o(RESET)
  - PVD_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - PWM4CH_ReadAddress from pwm4ch.o(i.PWM4CH_ReadAddress) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_ReadChannel from pwm4ch.o(i.PWM4CH_ReadChannel) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_ReadChannels from pwm4ch.o(i.PWM4CH_ReadChannels) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_ReadDuty from pwm4ch.o(i.PWM4CH_ReadDuty) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_ReadFrequency from pwm4ch.o(i.PWM4CH_ReadFrequency) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_ReadSerialParam from pwm4ch.o(i.PWM4CH_ReadSerialParam) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_ReadVersion from pwm4ch.o(i.PWM4CH_ReadVersion) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_WriteAddress from pwm4ch.o(i.PWM4CH_WriteAddress) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_WriteChannel from pwm4ch.o(i.PWM4CH_WriteChannel) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_WriteChannels from pwm4ch.o(i.PWM4CH_WriteChannels) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_WriteDuty from pwm4ch.o(i.PWM4CH_WriteDuty) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_WriteFrequency from pwm4ch.o(i.PWM4CH_WriteFrequency) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PWM4CH_WriteSerialParam from pwm4ch.o(i.PWM4CH_WriteSerialParam) referenced from pwm4ch.o(i.PWM4CH_Init)
  - PendSV_Handler from stm32f1xx_it.o(i.PendSV_Handler) referenced from startup_stm32f103xb.o(RESET)
  - RCC_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - RTC_Alarm_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - RTC_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - Reset_Handler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - SPI1_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - SPI2_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - SVC_Handler from stm32f1xx_it.o(i.SVC_Handler) referenced from startup_stm32f103xb.o(RESET)
  - SysTick_Handler from stm32f1xx_it.o(i.SysTick_Handler) referenced from startup_stm32f103xb.o(RESET)
  - SystemInit from system_stm32f1xx.o(i.SystemInit) referenced from startup_stm32f103xb.o(.text)
  - TAMPER_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - TIM1_BRK_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - TIM1_CC_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - TIM1_TRG_COM_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - TIM1_UP_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - TIM2_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - TIM3_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - TIM4_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - USART1_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - USART2_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - USART3_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - USBWakeUp_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - USB_HP_CAN1_TX_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - USB_LP_CAN1_RX0_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - UsageFault_Handler from stm32f1xx_it.o(i.UsageFault_Handler) referenced from startup_stm32f103xb.o(RESET)
  - WWDG_IRQHandler from startup_stm32f103xb.o(.text) referenced from startup_stm32f103xb.o(RESET)
  - __main from entry.o(.ARM.Collect$$$$00000000) referenced from startup_stm32f103xb.o(.text)
  - _snputc from printf8.o(i._snputc) referenced from printf8.o(i.__0snprintf$8)
  - main from main.o(i.main) referenced from entry9a.o(.ARM.Collect$$$$0000000B)

  ### Global Symbols

  __main (Thumb, 0 bytes, Stack size unknown bytes, entry.o(.ARM.Collect$$$$00000000))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(.text)

  _main_stk (Thumb, 0 bytes, Stack size unknown bytes, entry2.o(.ARM.Collect$$$$00000001))

  _main_scatterload (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
  [Calls]

  - >> __scatterload

  __main_after_scatterload (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
  [Called By]

  - >> __scatterload

  _main_clock (Thumb, 0 bytes, Stack size unknown bytes, entry7b.o(.ARM.Collect$$$$00000008))

  _main_cpp_init (Thumb, 0 bytes, Stack size unknown bytes, entry8b.o(.ARM.Collect$$$$0000000A))

  _main_init (Thumb, 0 bytes, Stack size unknown bytes, entry9a.o(.ARM.Collect$$$$0000000B))

  __rt_final_cpp (Thumb, 0 bytes, Stack size unknown bytes, entry10a.o(.ARM.Collect$$$$0000000D))

  __rt_final_exit (Thumb, 0 bytes, Stack size unknown bytes, entry11a.o(.ARM.Collect$$$$0000000F))

  Reset_Handler (Thumb, 8 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  ADC1_2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Calls]

  - >> ADC1_2_IRQHandler
  [Called By]
  - >> ADC1_2_IRQHandler
  [Address Reference Count : 1]
  - startup_stm32f103xb.o(RESET)

  CAN1_RX1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  CAN1_SCE_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  DMA1_Channel1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  DMA1_Channel2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  DMA1_Channel3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  DMA1_Channel4_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  DMA1_Channel5_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  DMA1_Channel6_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  DMA1_Channel7_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  EXTI0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  EXTI15_10_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  EXTI1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  EXTI2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  EXTI3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  EXTI4_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  EXTI9_5_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  FLASH_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  I2C1_ER_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  I2C1_EV_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  I2C2_ER_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  I2C2_EV_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  PVD_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  RCC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  RTC_Alarm_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  RTC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  SPI1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  SPI2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TAMPER_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TIM1_BRK_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TIM1_CC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TIM1_TRG_COM_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TIM1_UP_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TIM2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TIM3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  TIM4_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  USART1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  USART2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  USART3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  USBWakeUp_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  USB_HP_CAN1_TX_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  USB_LP_CAN1_RX0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  WWDG_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  __aeabi_llsr (Thumb, 32 bytes, Stack size 0 bytes, llushr.o(.text), UNUSED)
  [Called By]

  - >> __aeabi_uldivmod

  _ll_ushift_r (Thumb, 0 bytes, Stack size 0 bytes, llushr.o(.text), UNUSED)

  __aeabi_memset (Thumb, 14 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)
  [Called By]

  - >> _memset$wrapper
  - >> __aeabi_memclr

  __aeabi_memset4 (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)

  __aeabi_memset8 (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)

  __aeabi_memclr (Thumb, 4 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)
  [Calls]

  - >> __aeabi_memset

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

  - >> SystemClock_Config
  - >> PWM4CH_Init
  - >> PWM4CH_BusInit

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

  _memset$wrapper (Thumb, 18 bytes, Stack size 8 bytes, memseta.o(.text), UNUSED)
  [Calls]

  - >> __aeabi_memset

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

  - >> Debug_Write

  __aeabi_fadd (Thumb, 164 bytes, Stack size 16 bytes, fadd.o(.text))
  [Stack]

  - Max Depth = 20
  - Call Chain = __aeabi_fadd ⇒ _float_epilogue
  [Calls]
  - >> _float_round
  - >> _float_epilogue
  [Called By]
  - >> Debug_PrintChannel
  - >> frequency_to_raw
  - >> duty_to_raw
  - >> __aeabi_frsub
  - >> __aeabi_fsub

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

  - >> __aeabi_fadd

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

  - >> __aeabi_fadd

  __aeabi_fmul (Thumb, 100 bytes, Stack size 8 bytes, fmul.o(.text))
  [Stack]

  - Max Depth = 8
  - Call Chain = __aeabi_fmul
  [Called By]
  - >> Debug_PrintChannel
  - >> frequency_to_raw
  - >> duty_to_raw

  __aeabi_fdiv (Thumb, 124 bytes, Stack size 8 bytes, fdiv.o(.text))
  [Stack]

  - Max Depth = 8
  - Call Chain = __aeabi_fdiv
  [Calls]
  - >> _float_round
  [Called By]
  - >> raw_to_frequency
  - >> raw_to_duty

  __aeabi_ui2f (Thumb, 10 bytes, Stack size 0 bytes, ffltui.o(.text))
  [Stack]

  - Max Depth = 4
  - Call Chain = __aeabi_ui2f ⇒ _float_epilogue
  [Calls]
  - >> _float_epilogue
  [Called By]
  - >> raw_to_frequency
  - >> raw_to_duty

  __aeabi_f2uiz (Thumb, 40 bytes, Stack size 0 bytes, ffixui.o(.text))
  [Called By]

  - >> Debug_PrintChannel
  - >> frequency_to_raw
  - >> duty_to_raw

  __aeabi_uldivmod (Thumb, 98 bytes, Stack size 40 bytes, uldiv.o(.text), UNUSED)
  [Calls]

  - >> __aeabi_llsr
  - >> __aeabi_llsl
  [Called By]
  - >> _printf_core

  __I$use$fp (Thumb, 0 bytes, Stack size 0 bytes, iusefp.o(.text), UNUSED)

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

  - >> __aeabi_fdiv
  - >> __aeabi_fadd

  _float_epilogue (Thumb, 92 bytes, Stack size 4 bytes, fepilogue.o(.text))
  [Stack]

  - Max Depth = 4
  - Call Chain = _float_epilogue
  [Called By]
  - >> __aeabi_ui2f
  - >> __aeabi_fadd

  __scatterload (Thumb, 28 bytes, Stack size 0 bytes, init.o(.text))
  [Calls]

  - >> __main_after_scatterload
  [Called By]
  - >> _main_scatterload

  __scatterload_rt2 (Thumb, 0 bytes, Stack size 0 bytes, init.o(.text), UNUSED)

  __aeabi_llsl (Thumb, 30 bytes, Stack size 0 bytes, llshl.o(.text), UNUSED)
  [Called By]

  - >> __aeabi_uldivmod

  _ll_shift_l (Thumb, 0 bytes, Stack size 0 bytes, llshl.o(.text), UNUSED)

  BusFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.BusFault_Handler))
  [Calls]

  - >> BusFault_Handler
  [Called By]
  - >> BusFault_Handler
  [Address Reference Count : 1]
  - startup_stm32f103xb.o(RESET)

  DebugMon_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.DebugMon_Handler))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  Error_Handler (Thumb, 2 bytes, Stack size 0 bytes, main.o(i.Error_Handler))
  [Called By]

  - >> MX_USART2_UART_Init
  - >> MX_USART1_UART_Init

  HAL_Delay (Thumb, 32 bytes, Stack size 16 bytes, stm32f1xx_hal.o(i.HAL_Delay))
  [Stack]

  - Max Depth = 16
  - Call Chain = HAL_Delay
  [Calls]
  - >> HAL_GetTick
  [Called By]
  - >> main

  HAL_GPIO_Init (Thumb, 446 bytes, Stack size 40 bytes, stm32f1xx_hal_gpio.o(i.HAL_GPIO_Init))
  [Stack]

  - Max Depth = 40
  - Call Chain = HAL_GPIO_Init
  [Called By]
  - >> HAL_UART_MspInit
  - >> MX_GPIO_Init

  HAL_GPIO_WritePin (Thumb, 10 bytes, Stack size 0 bytes, stm32f1xx_hal_gpio.o(i.HAL_GPIO_WritePin))
  [Called By]

  - >> MX_GPIO_Init
  - >> set_transmit_mode

  HAL_GetTick (Thumb, 6 bytes, Stack size 0 bytes, stm32f1xx_hal.o(i.HAL_GetTick))
  [Called By]

  - >> HAL_RCC_OscConfig
  - >> HAL_RCC_ClockConfig
  - >> HAL_Delay
  - >> HAL_UART_Transmit
  - >> HAL_UART_Receive
  - >> UART_WaitOnFlagUntilTimeout

  HAL_IncTick (Thumb, 12 bytes, Stack size 0 bytes, stm32f1xx_hal.o(i.HAL_IncTick))
  [Called By]

  - >> SysTick_Handler

  HAL_Init (Thumb, 32 bytes, Stack size 8 bytes, stm32f1xx_hal.o(i.HAL_Init))
  [Stack]

  - Max Depth = 40
  - Call Chain = HAL_Init ⇒ HAL_InitTick ⇒ HAL_NVIC_SetPriority
  [Calls]
  - >> HAL_MspInit
  - >> HAL_InitTick
  - >> HAL_NVIC_SetPriorityGrouping
  [Called By]
  - >> main

  HAL_InitTick (Thumb, 54 bytes, Stack size 16 bytes, stm32f1xx_hal.o(i.HAL_InitTick))
  [Stack]

  - Max Depth = 32
  - Call Chain = HAL_InitTick ⇒ HAL_NVIC_SetPriority
  [Calls]
  - >> HAL_SYSTICK_Config
  - >> HAL_NVIC_SetPriority
  [Called By]
  - >> HAL_RCC_ClockConfig
  - >> HAL_Init

  HAL_MspInit (Thumb, 52 bytes, Stack size 8 bytes, stm32f1xx_hal_msp.o(i.HAL_MspInit))
  [Stack]

  - Max Depth = 8
  - Call Chain = HAL_MspInit
  [Called By]
  - >> HAL_Init

  HAL_NVIC_SetPriority (Thumb, 60 bytes, Stack size 16 bytes, stm32f1xx_hal_cortex.o(i.HAL_NVIC_SetPriority))
  [Stack]

  - Max Depth = 16
  - Call Chain = HAL_NVIC_SetPriority
  [Calls]
  - >> __NVIC_SetPriority
  [Called By]
  - >> HAL_InitTick

  HAL_NVIC_SetPriorityGrouping (Thumb, 26 bytes, Stack size 0 bytes, stm32f1xx_hal_cortex.o(i.HAL_NVIC_SetPriorityGrouping))
  [Called By]

  - >> HAL_Init

  HAL_RCC_ClockConfig (Thumb, 280 bytes, Stack size 32 bytes, stm32f1xx_hal_rcc.o(i.HAL_RCC_ClockConfig))
  [Stack]

  - Max Depth = 64
  - Call Chain = HAL_RCC_ClockConfig ⇒ HAL_InitTick ⇒ HAL_NVIC_SetPriority
  [Calls]
  - >> HAL_RCC_GetSysClockFreq
  - >> HAL_InitTick
  - >> HAL_GetTick
  [Called By]
  - >> SystemClock_Config

  HAL_RCC_GetPCLK1Freq (Thumb, 20 bytes, Stack size 0 bytes, stm32f1xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq))
  [Called By]

  - >> UART_SetConfig

  HAL_RCC_GetPCLK2Freq (Thumb, 20 bytes, Stack size 0 bytes, stm32f1xx_hal_rcc.o(i.HAL_RCC_GetPCLK2Freq))
  [Called By]

  - >> UART_SetConfig

  HAL_RCC_GetSysClockFreq (Thumb, 74 bytes, Stack size 20 bytes, stm32f1xx_hal_rcc.o(i.HAL_RCC_GetSysClockFreq))
  [Stack]

  - Max Depth = 20
  - Call Chain = HAL_RCC_GetSysClockFreq
  [Called By]
  - >> HAL_RCC_ClockConfig

  HAL_RCC_OscConfig (Thumb, 778 bytes, Stack size 40 bytes, stm32f1xx_hal_rcc.o(i.HAL_RCC_OscConfig))
  [Stack]

  - Max Depth = 40
  - Call Chain = HAL_RCC_OscConfig
  [Calls]
  - >> HAL_GetTick
  [Called By]
  - >> SystemClock_Config

  HAL_SYSTICK_Config (Thumb, 40 bytes, Stack size 8 bytes, stm32f1xx_hal_cortex.o(i.HAL_SYSTICK_Config))
  [Stack]

  - Max Depth = 8
  - Call Chain = HAL_SYSTICK_Config
  [Calls]
  - >> __NVIC_SetPriority
  [Called By]
  - >> HAL_InitTick

  HAL_UART_Init (Thumb, 98 bytes, Stack size 16 bytes, stm32f1xx_hal_uart.o(i.HAL_UART_Init))
  [Stack]

  - Max Depth = 96
  - Call Chain = HAL_UART_Init ⇒ HAL_UART_MspInit ⇒ HAL_GPIO_Init
  [Calls]
  - >> HAL_UART_MspInit
  - >> UART_SetConfig
  [Called By]
  - >> MX_USART2_UART_Init
  - >> MX_USART1_UART_Init

  HAL_UART_MspInit (Thumb, 156 bytes, Stack size 40 bytes, usart.o(i.HAL_UART_MspInit))
  [Stack]

  - Max Depth = 80
  - Call Chain = HAL_UART_MspInit ⇒ HAL_GPIO_Init
  [Calls]
  - >> HAL_GPIO_Init
  [Called By]
  - >> HAL_UART_Init

  HAL_UART_Receive (Thumb, 184 bytes, Stack size 32 bytes, stm32f1xx_hal_uart.o(i.HAL_UART_Receive))
  [Stack]

  - Max Depth = 56
  - Call Chain = HAL_UART_Receive ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> HAL_GetTick
  - >> UART_WaitOnFlagUntilTimeout
  [Called By]
  - >> send_request

  HAL_UART_Transmit (Thumb, 186 bytes, Stack size 32 bytes, stm32f1xx_hal_uart.o(i.HAL_UART_Transmit))
  [Stack]

  - Max Depth = 56
  - Call Chain = HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> HAL_GetTick
  - >> UART_WaitOnFlagUntilTimeout
  [Called By]
  - >> Debug_Write
  - >> send_request

  HardFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.HardFault_Handler))
  [Calls]

  - >> HardFault_Handler
  [Called By]
  - >> HardFault_Handler
  [Address Reference Count : 1]
  - startup_stm32f103xb.o(RESET)

  MX_GPIO_Init (Thumb, 88 bytes, Stack size 40 bytes, gpio.o(i.MX_GPIO_Init))
  [Stack]

  - Max Depth = 80
  - Call Chain = MX_GPIO_Init ⇒ HAL_GPIO_Init
  [Calls]
  - >> HAL_GPIO_Init
  - >> HAL_GPIO_WritePin
  [Called By]
  - >> main

  MX_USART1_UART_Init (Thumb, 48 bytes, Stack size 8 bytes, usart.o(i.MX_USART1_UART_Init))
  [Stack]

  - Max Depth = 104
  - Call Chain = MX_USART1_UART_Init ⇒ HAL_UART_Init ⇒ HAL_UART_MspInit ⇒ HAL_GPIO_Init
  [Calls]
  - >> HAL_UART_Init
  - >> Error_Handler
  [Called By]
  - >> main

  MX_USART2_UART_Init (Thumb, 48 bytes, Stack size 8 bytes, usart.o(i.MX_USART2_UART_Init))
  [Stack]

  - Max Depth = 104
  - Call Chain = MX_USART2_UART_Init ⇒ HAL_UART_Init ⇒ HAL_UART_MspInit ⇒ HAL_GPIO_Init
  [Calls]
  - >> HAL_UART_Init
  - >> Error_Handler
  [Called By]
  - >> main

  MemManage_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.MemManage_Handler))
  [Calls]

  - >> MemManage_Handler
  [Called By]
  - >> MemManage_Handler
  [Address Reference Count : 1]
  - startup_stm32f103xb.o(RESET)

  ModbusCRC_Calc (Thumb, 48 bytes, Stack size 12 bytes, modbus_crc.o(i.ModbusCRC_Calc))
  [Stack]

  - Max Depth = 12
  - Call Chain = ModbusCRC_Calc
  [Called By]
  - >> check_reply
  - >> add_crc

  NMI_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.NMI_Handler))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  PWM4CH_BaudrateFromCode (Thumb, 68 bytes, Stack size 0 bytes, pwm4ch.o(i.PWM4CH_BaudrateFromCode))
  [Called By]

  - >> PWM4CH_WriteSerialParam
  - >> PWM4CH_ReadSerialParam

  PWM4CH_BusInit (Thumb, 62 bytes, Stack size 32 bytes, pwm4ch.o(i.PWM4CH_BusInit))
  [Stack]

  - Max Depth = 32
  - Call Chain = PWM4CH_BusInit
  [Calls]
  - >> set_transmit_mode
  - >> __aeabi_memclr4
  [Called By]
  - >> main

  PWM4CH_Init (Thumb, 72 bytes, Stack size 16 bytes, pwm4ch.o(i.PWM4CH_Init))
  [Stack]

  - Max Depth = 16
  - Call Chain = PWM4CH_Init
  [Calls]
  - >> __aeabi_memclr4
  [Called By]
  - >> main

  PWM4CH_ReadAddress (Thumb, 128 bytes, Stack size 16 bytes, pwm4ch.o(i.PWM4CH_ReadAddress))
  [Stack]

  - Max Depth = 96
  - Call Chain = PWM4CH_ReadAddress ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> put_u16
  - >> check_reply
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_ReadChannel (Thumb, 172 bytes, Stack size 16 bytes, pwm4ch.o(i.PWM4CH_ReadChannel))
  [Stack]

  - Max Depth = 96
  - Call Chain = PWM4CH_ReadChannel ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> raw_to_frequency
  - >> raw_to_duty
  - >> put_u16
  - >> check_reply
  - >> channel_range_is_valid
  - >> add_crc
  [Called By]
  - >> PWM4CH_ReadChannels
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_ReadChannels (Thumb, 64 bytes, Stack size 24 bytes, pwm4ch.o(i.PWM4CH_ReadChannels))
  [Stack]

  - Max Depth = 120
  - Call Chain = PWM4CH_ReadChannels ⇒ PWM4CH_ReadChannel ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> PWM4CH_ReadChannel
  - >> channel_range_is_valid
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_ReadDuty (Thumb, 142 bytes, Stack size 16 bytes, pwm4ch.o(i.PWM4CH_ReadDuty))
  [Stack]

  - Max Depth = 96
  - Call Chain = PWM4CH_ReadDuty ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> raw_to_duty
  - >> put_u16
  - >> check_reply
  - >> channel_range_is_valid
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_ReadFrequency (Thumb, 156 bytes, Stack size 16 bytes, pwm4ch.o(i.PWM4CH_ReadFrequency))
  [Stack]

  - Max Depth = 96
  - Call Chain = PWM4CH_ReadFrequency ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> raw_to_frequency
  - >> put_u16
  - >> check_reply
  - >> channel_range_is_valid
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_ReadSerialParam (Thumb, 136 bytes, Stack size 16 bytes, pwm4ch.o(i.PWM4CH_ReadSerialParam))
  [Stack]

  - Max Depth = 96
  - Call Chain = PWM4CH_ReadSerialParam ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> PWM4CH_BaudrateFromCode
  - >> send_request
  - >> put_u16
  - >> check_reply
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_ReadVersion (Thumb, 120 bytes, Stack size 16 bytes, pwm4ch.o(i.PWM4CH_ReadVersion))
  [Stack]

  - Max Depth = 96
  - Call Chain = PWM4CH_ReadVersion ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> put_u16
  - >> check_reply
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_StrError (Thumb, 50 bytes, Stack size 0 bytes, pwm4ch.o(i.PWM4CH_StrError))
  [Called By]

  - >> Debug_PrintResult

  PWM4CH_WriteAddress (Thumb, 140 bytes, Stack size 24 bytes, pwm4ch.o(i.PWM4CH_WriteAddress))
  [Stack]

  - Max Depth = 104
  - Call Chain = PWM4CH_WriteAddress ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> put_u16
  - >> check_reply
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_WriteChannel (Thumb, 256 bytes, Stack size 32 bytes, pwm4ch.o(i.PWM4CH_WriteChannel))
  [Stack]

  - Max Depth = 112
  - Call Chain = PWM4CH_WriteChannel ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> raw_to_frequency
  - >> raw_to_duty
  - >> put_u16
  - >> frequency_to_raw
  - >> frequency_is_valid
  - >> duty_to_raw
  - >> duty_is_valid
  - >> check_reply
  - >> channel_range_is_valid
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_WriteChannels (Thumb, 336 bytes, Stack size 64 bytes, pwm4ch.o(i.PWM4CH_WriteChannels))
  [Stack]

  - Max Depth = 144
  - Call Chain = PWM4CH_WriteChannels ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> put_u16
  - >> frequency_to_raw
  - >> frequency_is_valid
  - >> duty_to_raw
  - >> duty_is_valid
  - >> check_reply
  - >> channel_reg
  - >> channel_range_is_valid
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_WriteDuty (Thumb, 184 bytes, Stack size 32 bytes, pwm4ch.o(i.PWM4CH_WriteDuty))
  [Stack]

  - Max Depth = 112
  - Call Chain = PWM4CH_WriteDuty ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> raw_to_duty
  - >> put_u16
  - >> duty_to_raw
  - >> duty_is_valid
  - >> check_reply
  - >> channel_range_is_valid
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_WriteFrequency (Thumb, 216 bytes, Stack size 24 bytes, pwm4ch.o(i.PWM4CH_WriteFrequency))
  [Stack]

  - Max Depth = 104
  - Call Chain = PWM4CH_WriteFrequency ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> send_request
  - >> raw_to_frequency
  - >> put_u16
  - >> frequency_to_raw
  - >> frequency_is_valid
  - >> check_reply
  - >> channel_range_is_valid
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PWM4CH_WriteSerialParam (Thumb, 166 bytes, Stack size 32 bytes, pwm4ch.o(i.PWM4CH_WriteSerialParam))
  [Stack]

  - Max Depth = 112
  - Call Chain = PWM4CH_WriteSerialParam ⇒ send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> PWM4CH_BaudrateFromCode
  - >> send_request
  - >> put_u16
  - >> check_reply
  - >> add_crc
  [Address Reference Count : 1]
  - pwm4ch.o(i.PWM4CH_Init)

  PendSV_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.PendSV_Handler))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  SVC_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.SVC_Handler))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(RESET)

  SysTick_Handler (Thumb, 4 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.SysTick_Handler))
  [Calls]

  - >> HAL_IncTick
  [Address Reference Count : 1]
  - startup_stm32f103xb.o(RESET)

  SystemClock_Config (Thumb, 78 bytes, Stack size 72 bytes, main.o(i.SystemClock_Config))
  [Stack]

  - Max Depth = 136
  - Call Chain = SystemClock_Config ⇒ HAL_RCC_ClockConfig ⇒ HAL_InitTick ⇒ HAL_NVIC_SetPriority
  [Calls]
  - >> HAL_RCC_OscConfig
  - >> HAL_RCC_ClockConfig
  - >> __aeabi_memclr4
  [Called By]
  - >> main

  SystemInit (Thumb, 56 bytes, Stack size 0 bytes, system_stm32f1xx.o(i.SystemInit))
  [Address Reference Count : 1]

  - startup_stm32f103xb.o(.text)

  UsageFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, stm32f1xx_it.o(i.UsageFault_Handler))
  [Calls]

  - >> UsageFault_Handler
  [Called By]
  - >> UsageFault_Handler
  [Address Reference Count : 1]
  - startup_stm32f103xb.o(RESET)

  __0snprintf$8 (Thumb, 44 bytes, Stack size 32 bytes, printf8.o(i.__0snprintf$8), UNUSED)
  [Calls]

  - >> _printf_core

  __1snprintf$8 (Thumb, 0 bytes, Stack size 32 bytes, printf8.o(i.__0snprintf$8), UNUSED)

  __2snprintf (Thumb, 0 bytes, Stack size 32 bytes, printf8.o(i.__0snprintf$8))
  [Stack]

  - Max Depth = 32
  - Call Chain = __2snprintf
  [Called By]
  - >> Run_PWM4CH_Demo
  - >> Debug_PrintResult
  - >> Debug_PrintChannel

  __scatterload_copy (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_copy), UNUSED)

  __scatterload_null (Thumb, 2 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_null), UNUSED)

  __scatterload_zeroinit (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_zeroinit), UNUSED)

  main (Thumb, 104 bytes, Stack size 264 bytes, main.o(i.main))
  [Stack]

  - Max Depth = 592
  - Call Chain = main ⇒ Run_PWM4CH_Demo ⇒ Debug_PrintChannel ⇒ Debug_Write ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> MX_USART2_UART_Init
  - >> MX_USART1_UART_Init
  - >> MX_GPIO_Init
  - >> HAL_Init
  - >> HAL_Delay
  - >> SystemClock_Config
  - >> Run_PWM4CH_Demo
  - >> Debug_Write
  - >> PWM4CH_Init
  - >> PWM4CH_BusInit
  [Address Reference Count : 1]
  - entry9a.o(.ARM.Collect$$$$0000000B)

  ### Local Symbols

  add_crc (Thumb, 40 bytes, Stack size 16 bytes, pwm4ch.o(i.add_crc))
  [Stack]

  - Max Depth = 28
  - Call Chain = add_crc ⇒ ModbusCRC_Calc
  [Calls]
  - >> ModbusCRC_Calc
  [Called By]
  - >> PWM4CH_WriteSerialParam
  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel
  - >> PWM4CH_WriteAddress
  - >> PWM4CH_ReadVersion
  - >> PWM4CH_ReadSerialParam
  - >> PWM4CH_ReadFrequency
  - >> PWM4CH_ReadDuty
  - >> PWM4CH_ReadChannel
  - >> PWM4CH_ReadAddress

  channel_range_is_valid (Thumb, 20 bytes, Stack size 0 bytes, pwm4ch.o(i.channel_range_is_valid))
  [Called By]

  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel
  - >> PWM4CH_ReadFrequency
  - >> PWM4CH_ReadDuty
  - >> PWM4CH_ReadChannels
  - >> PWM4CH_ReadChannel

  channel_reg (Thumb, 10 bytes, Stack size 0 bytes, pwm4ch.o(i.channel_reg))
  [Called By]

  - >> PWM4CH_WriteChannels

  check_reply (Thumb, 98 bytes, Stack size 24 bytes, pwm4ch.o(i.check_reply))
  [Stack]

  - Max Depth = 36
  - Call Chain = check_reply ⇒ ModbusCRC_Calc
  [Calls]
  - >> ModbusCRC_Calc
  [Called By]
  - >> PWM4CH_WriteSerialParam
  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel
  - >> PWM4CH_WriteAddress
  - >> PWM4CH_ReadVersion
  - >> PWM4CH_ReadSerialParam
  - >> PWM4CH_ReadFrequency
  - >> PWM4CH_ReadDuty
  - >> PWM4CH_ReadChannel
  - >> PWM4CH_ReadAddress

  duty_is_valid (Thumb, 20 bytes, Stack size 0 bytes, pwm4ch.o(i.duty_is_valid))
  [Called By]

  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel

  duty_to_raw (Thumb, 24 bytes, Stack size 8 bytes, pwm4ch.o(i.duty_to_raw))
  [Stack]

  - Max Depth = 28
  - Call Chain = duty_to_raw ⇒ __aeabi_fadd ⇒ _float_epilogue
  [Calls]
  - >> __aeabi_fmul
  - >> __aeabi_fadd
  - >> __aeabi_f2uiz
  [Called By]
  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel

  frequency_is_valid (Thumb, 18 bytes, Stack size 0 bytes, pwm4ch.o(i.frequency_is_valid))
  [Called By]

  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel

  frequency_to_raw (Thumb, 24 bytes, Stack size 8 bytes, pwm4ch.o(i.frequency_to_raw))
  [Stack]

  - Max Depth = 28
  - Call Chain = frequency_to_raw ⇒ __aeabi_fadd ⇒ _float_epilogue
  [Calls]
  - >> __aeabi_fmul
  - >> __aeabi_fadd
  - >> __aeabi_f2uiz
  [Called By]
  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel

  put_u16 (Thumb, 8 bytes, Stack size 0 bytes, pwm4ch.o(i.put_u16))
  [Called By]

  - >> PWM4CH_WriteSerialParam
  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel
  - >> PWM4CH_WriteAddress
  - >> PWM4CH_ReadVersion
  - >> PWM4CH_ReadSerialParam
  - >> PWM4CH_ReadFrequency
  - >> PWM4CH_ReadDuty
  - >> PWM4CH_ReadChannel
  - >> PWM4CH_ReadAddress

  raw_to_duty (Thumb, 16 bytes, Stack size 8 bytes, pwm4ch.o(i.raw_to_duty))
  [Stack]

  - Max Depth = 16
  - Call Chain = raw_to_duty ⇒ __aeabi_fdiv
  [Calls]
  - >> __aeabi_ui2f
  - >> __aeabi_fdiv
  [Called By]
  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannel
  - >> PWM4CH_ReadDuty
  - >> PWM4CH_ReadChannel

  raw_to_frequency (Thumb, 16 bytes, Stack size 8 bytes, pwm4ch.o(i.raw_to_frequency))
  [Stack]

  - Max Depth = 16
  - Call Chain = raw_to_frequency ⇒ __aeabi_fdiv
  [Calls]
  - >> __aeabi_ui2f
  - >> __aeabi_fdiv
  [Called By]
  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteChannel
  - >> PWM4CH_ReadFrequency
  - >> PWM4CH_ReadChannel

  send_request (Thumb, 162 bytes, Stack size 24 bytes, pwm4ch.o(i.send_request))
  [Stack]

  - Max Depth = 80
  - Call Chain = send_request ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> HAL_UART_Transmit
  - >> HAL_UART_Receive
  - >> set_transmit_mode
  [Called By]
  - >> PWM4CH_WriteSerialParam
  - >> PWM4CH_WriteFrequency
  - >> PWM4CH_WriteDuty
  - >> PWM4CH_WriteChannels
  - >> PWM4CH_WriteChannel
  - >> PWM4CH_WriteAddress
  - >> PWM4CH_ReadVersion
  - >> PWM4CH_ReadSerialParam
  - >> PWM4CH_ReadFrequency
  - >> PWM4CH_ReadDuty
  - >> PWM4CH_ReadChannel
  - >> PWM4CH_ReadAddress

  set_transmit_mode (Thumb, 30 bytes, Stack size 0 bytes, pwm4ch.o(i.set_transmit_mode))
  [Calls]

  - >> HAL_GPIO_WritePin
  [Called By]
  - >> PWM4CH_BusInit
  - >> send_request

  Debug_PrintChannel (Thumb, 120 bytes, Stack size 136 bytes, main.o(i.Debug_PrintChannel))
  [Stack]

  - Max Depth = 200
  - Call Chain = Debug_PrintChannel ⇒ Debug_Write ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> Debug_Write
  - >> __aeabi_fmul
  - >> __aeabi_fadd
  - >> __aeabi_f2uiz
  - >> __2snprintf
  [Called By]
  - >> Run_PWM4CH_Demo

  Debug_PrintHex (Thumb, 74 bytes, Stack size 24 bytes, main.o(i.Debug_PrintHex))
  [Stack]

  - Max Depth = 88
  - Call Chain = Debug_PrintHex ⇒ Debug_Write ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> Debug_Write
  [Called By]
  - >> Debug_PrintResult

  Debug_PrintResult (Thumb, 126 bytes, Stack size 96 bytes, main.o(i.Debug_PrintResult))
  [Stack]

  - Max Depth = 184
  - Call Chain = Debug_PrintResult ⇒ Debug_PrintHex ⇒ Debug_Write ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> Debug_Write
  - >> Debug_PrintHex
  - >> PWM4CH_StrError
  - >> __2snprintf
  [Called By]
  - >> Run_PWM4CH_Demo

  Debug_Write (Thumb, 24 bytes, Stack size 8 bytes, main.o(i.Debug_Write))
  [Stack]

  - Max Depth = 64
  - Call Chain = Debug_Write ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> HAL_UART_Transmit
  - >> strlen
  [Called By]
  - >> main
  - >> Run_PWM4CH_Demo
  - >> Debug_PrintResult
  - >> Debug_PrintHex
  - >> Debug_PrintChannel

  Run_PWM4CH_Demo (Thumb, 508 bytes, Stack size 128 bytes, main.o(i.Run_PWM4CH_Demo))
  [Stack]

  - Max Depth = 328
  - Call Chain = Run_PWM4CH_Demo ⇒ Debug_PrintChannel ⇒ Debug_Write ⇒ HAL_UART_Transmit ⇒ UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> Debug_Write
  - >> Debug_PrintResult
  - >> Debug_PrintChannel
  - >> __2snprintf
  [Called By]
  - >> main

  UART_SetConfig (Thumb, 178 bytes, Stack size 24 bytes, stm32f1xx_hal_uart.o(i.UART_SetConfig))
  [Stack]

  - Max Depth = 24
  - Call Chain = UART_SetConfig
  [Calls]
  - >> HAL_RCC_GetPCLK2Freq
  - >> HAL_RCC_GetPCLK1Freq
  [Called By]
  - >> HAL_UART_Init

  UART_WaitOnFlagUntilTimeout (Thumb, 100 bytes, Stack size 24 bytes, stm32f1xx_hal_uart.o(i.UART_WaitOnFlagUntilTimeout))
  [Stack]

  - Max Depth = 24
  - Call Chain = UART_WaitOnFlagUntilTimeout
  [Calls]
  - >> HAL_GetTick
  [Called By]
  - >> HAL_UART_Transmit
  - >> HAL_UART_Receive

  __NVIC_SetPriority (Thumb, 32 bytes, Stack size 0 bytes, stm32f1xx_hal_cortex.o(i.__NVIC_SetPriority))
  [Called By]

  - >> HAL_SYSTICK_Config
  - >> HAL_NVIC_SetPriority

  _printf_core (Thumb, 996 bytes, Stack size 104 bytes, printf8.o(i._printf_core), UNUSED)
  [Calls]

  - >> __aeabi_uldivmod
  - >> _printf_pre_padding
  - >> _printf_post_padding
  [Called By]
  - >> __0snprintf$8

  _printf_post_padding (Thumb, 36 bytes, Stack size 24 bytes, printf8.o(i._printf_post_padding), UNUSED)
  [Called By]

  - >> _printf_core

  _printf_pre_padding (Thumb, 46 bytes, Stack size 24 bytes, printf8.o(i._printf_pre_padding), UNUSED)
  [Called By]

  - >> _printf_core

  _snputc (Thumb, 22 bytes, Stack size 0 bytes, printf8.o(i._snputc))
  [Address Reference Count : 1]

  - printf8.o(i.__0snprintf$8)

  ### Undefined Global Symbols