About ignatyy

ignatyy · 2019-12-30

#include "stm32h7xx_hal.h"extern void SystemClock_Config_16MHz(void);uint32_t DBG32[10];//======================void delay(uint32_t wait){ while(wait--);}//==================void Test_TIM(){ HAL_Init(); SystemClock_Config_16MHz(); // my quarc ...

ignatyy · 2020-01-03

I post part of the assembler listing: to execute the subroutine"delay (1)" should be up to 6 CPU cycles (this is the worst case!). Plus 8 CPU cycles for calling and reading _ writing TIM. Total should be no more than 14 CPU cycles. The value in DBG [...

ignatyy · 2019-12-30

Сaching is disabled. DBG32 [5..8] the code is absolutely identical, and the score is 2 times different!

ignatyy · 2019-12-30

Thanks for the answer. The assembler listing shows that the compiler does not delete anything and step-by-step debugging also points to this. The reason is something else.

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There is a bug in TIM's work on stm32h750, but on stm32f407 everything works fine. Please check the results on your controller.

Re: There is a bug in TIM's work on stm32h750, but on stm32f407 everything works fine. Please check the results on your controller.

Re: There is a bug in TIM's work on stm32h750, but on stm32f407 everything works fine. Please check the results on your controller.

Re: There is a bug in TIM's work on stm32h750, but on stm32f407 everything works fine. Please check the results on your controller.