avr_libraries/zh_avr_pcf8574
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fix: isr handler wrong interrupt processing

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This commit is contained in:
Alexey Zholtikov
2025-10-11 12:53:52 +03:00
parent 9a6d82fb64
commit 3fa55b8fa2
2 changed files with 44 additions and 4 deletions
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2
version.txt
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@@ -1 +1 @@
1.3.1
1.3.2

40
zh_avr_pcf8574.c
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@@ -5,6 +5,7 @@ static uint8_t _interrupt_gpio = 0xFF;
static uint8_t _interrupt_port = 0;
static SemaphoreHandle_t _interrupt_semaphore = NULL;
static const uint8_t _gpio_matrix[8] PROGMEM = {AVR_BIT0, AVR_BIT1, AVR_BIT2, AVR_BIT3, AVR_BIT4, AVR_BIT5, AVR_BIT6, AVR_BIT7};
volatile static bool _interrupt_on = false;
static zh_avr_vector_t _vector = {0};
@@ -161,23 +162,62 @@ BaseType_t zh_avr_pcf8574_isr_handler(void)
switch (_interrupt_port)
{
case AVR_PORTB:
if ((PINB & (1 << _interrupt_gpio)) == (1 << _interrupt_gpio))
{
if (_interrupt_on == false)
{
_interrupt_on = true;
}
break;
}
if ((PINB & (1 << _interrupt_gpio)) == 0)
{
if (_interrupt_on == true)
{
_interrupt_on = false;
xSemaphoreGiveFromISR(_interrupt_semaphore, &xHigherPriorityTaskWoken);
}
break;
}
break;
case AVR_PORTC:
if ((PINC & (1 << _interrupt_gpio)) == (1 << _interrupt_gpio))
{
if (_interrupt_on == false)
{
_interrupt_on = true;
}
break;
}
if ((PINC & (1 << _interrupt_gpio)) == 0)
{
if (_interrupt_on == true)
{
_interrupt_on = false;
xSemaphoreGiveFromISR(_interrupt_semaphore, &xHigherPriorityTaskWoken);
}
break;
}
break;
case AVR_PORTD:
if ((PIND & (1 << _interrupt_gpio)) == (1 << _interrupt_gpio))
{
if (_interrupt_on == false)
{
_interrupt_on = true;
}
break;
}
if ((PIND & (1 << _interrupt_gpio)) == 0)
{
if (_interrupt_on == true)
{
_interrupt_on = false;
xSemaphoreGiveFromISR(_interrupt_semaphore, &xHigherPriorityTaskWoken);
}
break;
}
break;
default:
break;
}