STM32F0 程序移到STM32G0 PB3边沿中断不运行
STM32F0 PB3中断部分程序：void EXTI2_3_IRQHandler(void)
{
if((EXTI->PR & ((uint32_t)0x00000008)) != 0)/* Check line 3 has triggered the IT */
{
printf("EXTI2_3_IRQHandler:PR=%d\r\n",(EXTI->PR & ((uint32_t)0x00000008)));
。。。。。。。。。。。
/* Clear the EXTI line 3 pending bit */
EXTI->PR = ((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):PB3
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:DISABLE\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:DISABLE\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);
}
移植之前用的是STM32F030芯片，用的都是早期寄存器弄的驱动，程序运行都正常。这部份边沿中断程序，移植到STM32G070上时, 直接不 运行。难道是STM32G070上什么寄存器配制，没配到位吗？请哪位大神帮我看看，谢谢！！！
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