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fixed some bugs about interrupt 

When I used the pin's interrupt, I always get a FALSE state.
So I read the drv_gpio.c and has found that function gpio_exti_source_select has not  truly set yet and the GPIO input mode and the EXTI_(bitno) should be correct.
This commit is contained in:
Tao_eternal 2021-05-07 13:52:33 +08:00 committed by GitHub
parent 186466ecc6
commit 6cb39a15a6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 6 deletions
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17
bsp/gd32vf103v-eval/drivers/drv_gpio.c
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@ -350,8 +350,6 @@ static rt_err_t gd32vf_pin_irq_enable(struct rt_device *device, rt_base_t pin,
return RT_ENOSYS;
}
/* configure pin as input */
gpio_init(index->gpio_periph, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, index->pin);
if (enabled == PIN_IRQ_ENABLE)
{
irqindex = bit2bitno(index->pin);
@ -372,24 +370,31 @@ static rt_err_t gd32vf_pin_irq_enable(struct rt_device *device, rt_base_t pin,
/* enable and set EXTI interrupt to the lowest priority */
eclic_irq_enable(irqmap->irqno, 1, 1);
gpio_exti_source_select(GPIO_PORT_SOURCE_GPIOA, GPIO_PIN_SOURCE_0);
/* select SOURCE_PORT_x and SOURCE_PIN_x */
gpio_exti_source_select(index->index >> 4, irqindex);
/* Configure GPIO_InitStructure */
switch (pin_irq_hdr_tab[irqindex].mode)
{
case PIN_IRQ_MODE_RISING:
gpio_init( index->gpio_periph, GPIO_MODE_IPD, GPIO_OSPEED_50MHZ,
index->pin );
exti_init(EXTI_(irqindex), EXTI_INTERRUPT, EXTI_TRIG_RISING);
break;
case PIN_IRQ_MODE_FALLING:
gpio_init( index->gpio_periph, GPIO_MODE_IPU, GPIO_OSPEED_50MHZ,
index->pin );
exti_init(EXTI_(irqindex), EXTI_INTERRUPT, EXTI_TRIG_FALLING);
break;
case PIN_IRQ_MODE_RISING_FALLING:
gpio_init(index->gpio_periph, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ,
index->pin);
exti_init(EXTI_(irqindex), EXTI_INTERRUPT, EXTI_TRIG_BOTH);
break;
}
pin_irq_enable_mask |= irqmap->pinbit;
exti_interrupt_flag_clear(EXTI_(index->pin));
/* irqindex should be bitno and then EXTI_(x) can be the bit */
exti_interrupt_flag_clear(EXTI_(irqindex));
rt_hw_interrupt_enable(level);
}
@ -408,7 +413,7 @@ static rt_err_t gd32vf_pin_irq_enable(struct rt_device *device, rt_base_t pin,
pin_irq_enable_mask &= ~irqmap->pinbit;
eclic_irq_disable(irqmap->irqno);
exti_interrupt_flag_clear(EXTI_(index->pin));
exti_interrupt_flag_clear(EXTI_(irqindex));
rt_hw_interrupt_enable(level);
}