CODE
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
#include "gpio.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
void TDC12(void);
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk; //Disable IRQ SysTick
SysTick->CTRL |= SysTick_CTRL_CLKSOURCE_Msk;
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk; //Disable SysTick
__disable_irq ();
while (1)
{
TDC12();
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
__PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 12;
RCC_OscInitStruct.PLL.PLLN = 192;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 2;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
HAL_PWREx_ActivateOverDrive();
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_6);
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1);
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* USER CODE BEGIN 4 */
void TDC12(void)
{
register uint32_t adr __asm("r4");
register uint32_t portb __asm("r5");
register uint32_t portc __asm("r6");
register uint32_t portd __asm("r7");
register uint32_t porte __asm("r8");
register uint32_t win1 __asm("r9");
register uint32_t win2 __asm("r10");
register uint32_t win3 __asm("r11");
register uint32_t win4 __asm("r12");
adr=0;
portb=0x40020400;
portc=0x40020800;
portd=0x40020c00;
porte=0x40021000;
win1=100;
win2=100;
win3=100;
win4=100;
__asm {
MOV temp,#0x00000010
STR temp,[portc,#0x18]
MOV adr,#0x00000000
lab1:
ADDS adr,adr,#1
CMP adr,win1
BCC lab1 }
__asm {
MOV temp,#0x00100000
STR temp,[portc,#0x18]
MOV adr,#0x00000000
Lab2:
ADDS adr,adr,#1
CMP adr,win2
BCC lab2 }
__asm {
MOV temp,#0x00000010
STR temp,[portc,#0x18]
MOV adr,#0x00000000
Lab3:
ADDS adr,adr,#1
CMP adr,win3
BCC lab3 }
__asm {
MOV temp,#0x00100000
STR temp,[portc,#0x18]
MOV adr,#0x00000000
Lab4:
ADDS adr,adr,#1
CMP adr,win4
BCC lab4 }
}
/* USER CODE END 4 */
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif
Это с использованием HAL есть и без HAL-а, сейчас не под рукой, но результат одинаковый.
Процедуру урезал до 2-х импульсов, что бы не нагромождать.
Что бы на таком простом коде были у STM32F7 такие непонятные явления, очень странно...