STM32F0 程序移到STM32G0 PB3边沿中断不运行

[复制链接]

challenger365 提问时间：2024-2-29 14:11 / 未解决

问答
是否解决:	未解决

STM32F0 PB3中断部分程序：

void EXTI2_3_IRQHandler(void)
{
if((EXTI->

R & ((uint32_t)0x00000008)) != 0) /* Check line 3 has triggered the IT */
{
printf("EXTI2_3_IRQHandler

R=%d\r\n",(EXTI->

R & ((uint32_t)0x00000008)));
。。。。。。。。。。。

/* Clear the EXTI line 3 pending bit */
EXTI->

R = ((uint32_t)0x00000008);
// printf("EXTI2_3_IRQHandler \r\n");
}

}

void init_zerox_pin(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};

__HAL_RCC_GPIOB_CLK_ENABLE();

/*Configure GPIO pin : PB3 */
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}

void config_exti_line3_to_zerox(unsigned char enable_disable)
{

/* Enable SYSCFG clock */
RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;

/* Connect EXTI3 Line to PB3 pin */
uint32_t tmp = 0x00;

tmp = ((uint32_t)0x0F) << (0x04 * (((uint8_t)0x03) & (uint8_t)0x03)); //(uint8_t)0x03)

B3
SYSCFG->EXTICR[((uint8_t)0x03) >> 0x02] &= ~tmp;
SYSCFG->EXTICR[((uint8_t)0x03) >> 0x02] |= (((uint32_t)((uint8_t)0x01)) << (0x04 * (((uint8_t)0x03) & (uint8_t)0x03)));

/* Configure EXTI3 line */
tmp = (uint32_t)EXTI_BASE;

if(enable_disable == ENABLE)
{
printf("config_exti_line3:ENABLE\r\n");
/* Clear EXTI line configuration */
EXTI->IMR &= ~((uint32_t)0x00000008);
EXTI->EMR &= ~((uint32_t)0x00000008);

tmp += 0x00;

*(__IO uint32_t *) tmp |= ((uint32_t)0x00000008);

/* Clear Rising Falling edge configuration */
EXTI->RTSR &= ~((uint32_t)0x00000008);
EXTI->FTSR &= ~((uint32_t)0x00000008);

/* Select the trigger for the selected interrupts */

tmp = (uint32_t)EXTI_BASE;
/* falling edge set */
tmp += 0x0C; //EXTI_FTSR: Address offset: 0x0C

*(__IO uint32_t *) tmp |= ((uint32_t)0x00000008);
}
else
{ printf("config_exti_line33

ISABLE\r\n");
tmp += 0x00;

/* Disable the selected external lines */
*(__IO uint32_t *) tmp &= ~((uint32_t)0x00000008);
}

/* Configure NVIC for External Interrupt */

/* Enable Interrupt on EXTI2_3 */
NVIC_EnableIRQ(EXTI2_3_IRQn);

/* Set priority for EXTI2_3 */
NVIC_SetPriority(EXTI2_3_IRQn,0);
}

更改为STM32G0后，程序如下：

void EXTI2_3_IRQHandler(void)
{
if((EXTI->FPR1 & ((uint32_t)0x00000008)) != 0) /* Check line 3 has triggered the IT */
{
printf("EXTI2_3_IRQHandler:FPR1=%d\r\n",(EXTI->FPR1 & ((uint32_t)0x00000008)));
。。。。。。。。。。。

/* Clear the EXTI line 3 pending bit */
EXTI->FPR1 = ((uint32_t)0x00000008);
// printf("EXTI2_3_IRQHandler \r\n");
}
else if((EXTI->RPR1 & ((uint32_t)0x00000008)) != 0)
{
printf("EXTI->RPR1 = ((uint32_t)0x00000008)\r\n");

EXTI->RPR1 = ((uint32_t)0x00000008);
}
}

void init_zerox_pin(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};

__HAL_RCC_GPIOB_CLK_ENABLE();

/*Configure GPIO pin : PB3 */
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}

void config_exti_line3_to_zerox(unsigned char enable_disable)
{
/* Enable SYSCFG clock */
#if 0
RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;
#else
// RCC->APBENR2 |= RCC_APBENR2_SYSCFGEN;
__HAL_RCC_SYSCFG_CLK_ENABLE();
#endif

/* Connect EXTI3 Line to PB3 pin */
uint32_t tmp = 0x00;

#if 0
tmp = ((uint32_t)0x0F) << (0x04 * (((uint8_t)0x03) & (uint8_t)0x03));
SYSCFG->EXTICR[((uint8_t)0x03) >> 0x02] &= ~tmp;
SYSCFG->EXTICR[((uint8_t)0x03) >> 0x02] |= (((uint32_t)((uint8_t)0x01)) << (0x04 * (((uint8_t)0x03) & (uint8_t)0x03)));
#else
tmp = ((uint32_t)0x0F) << (0x08 * (((uint8_t)0x03) & (uint8_t)0x03));
EXTI->EXTICR[((uint8_t)0x03) >> 0x02] &= ~tmp;
EXTI->EXTICR[((uint8_t)0x03) >> 0x02] |= (((uint32_t)((uint8_t)0x01)) << (0x08 * (((uint8_t)0x03) & (uint8_t)0x03)));
#endif

/* Configure EXTI3 line */
tmp = (uint32_t)EXTI_BASE;

if(enable_disable == ENABLE)
{
printf("config_exti_line3:ENABLE\r\n");
/* Clear EXTI line configuration */
#if 0
EXTI->IMR &= ~((uint32_t)0x00000008);
EXTI->EMR &= ~((uint32_t)0x00000008);
#else
EXTI->IMR1 &= ~((uint32_t)0x00000008);
EXTI->EMR1 &= ~((uint32_t)0x00000008);
#endif
tmp += 0x00;

*(__IO uint32_t *) tmp |= ((uint32_t)0x00000008);

/* Clear Rising Falling edge configuration */
#if 0
EXTI->RTSR &= ~((uint32_t)0x00000008);
EXTI->FTSR &= ~((uint32_t)0x00000008);
#else
EXTI->RTSR1 &= ~((uint32_t)0x00000008);
EXTI->FTSR1 &= ~((uint32_t)0x00000008);
#endif
/* Select the trigger for the selected interrupts */

tmp = (uint32_t)EXTI_BASE;
/* falling edge set */
tmp += 0x04; //EXTI_FTSR1:Address offset: 0x04

*(__IO uint32_t *) tmp |= ((uint32_t)0x00000008);
}
else
{ printf("config_exti_line33