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atomic GPIO operation in BSP

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This commit is contained in:
Peter Lawrence
2020-02-11 14:34:07 -06:00
parent 7d8ecc63a6
commit 6ab799c7eb
1 changed files with 3 additions and 0 deletions
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3
hw/bsp/nutiny_sdk_nuc505/nutiny_sdk_nuc505.c
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@@ -93,8 +93,11 @@ void board_led_write(bool state)
{ {
uint32_t current = (state) ? LED_STATE_ON : (1-LED_STATE_ON); uint32_t current = (state) ? LED_STATE_ON : (1-LED_STATE_ON);
current <<= LED_PIN; current <<= LED_PIN;
uint32_t irq_state = __get_PRIMASK();
__disable_irq();
current |= LED_PORT->DOUT & ~(1UL << LED_PIN); current |= LED_PORT->DOUT & ~(1UL << LED_PIN);
LED_PORT->DOUT = current; LED_PORT->DOUT = current;
__set_PRIMASK(irq_state);
} }
uint32_t board_button_read(void) uint32_t board_button_read(void)