nes-proj/cpu/stm32w108/hal/micro/cortexm3/led.c

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/** @file hal/micro/cortexm3/led.c
* @brief LED manipulation routines; stack and example APIs
*
* <!--(C) COPYRIGHT 2010 STMicroelectronics. All rights reserved. -->
*/
#include PLATFORM_HEADER
#include BOARD_HEADER
#include "hal/micro/led.h"
#include "hal/micro/micro-common.h"
#include "hal/micro/cortexm3/micro-common.h"
void halInitLed(void)
{
/* Set GPIO pins for Led D1 and Led D3 */
halGpioConfig(LED_D1, GPIOCFG_OUT);
halGpioConfig(LED_D3, GPIOCFG_OUT);
/* Switch off Led D1,D3 */
halClearLed(LED_D1);
halClearLed(LED_D3);
}
void halSetLed(HalBoardLed led)
{
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halGpioSet(led, 0);
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}
void halClearLed(HalBoardLed led)
{
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halGpioSet(led, 1);
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}
void halToggleLed(HalBoardLed led)
{
//to avoid contention with other code using the other pins for other
//purposes, we disable interrupts since this is a read-modify-write
ATOMIC(
if(led/8 < 3) {
*((volatile uint32_t *)(GPIO_PxOUT_BASE+(GPIO_Px_OFFSET*(led/8)))) ^= BIT(led&7);
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}
)
}