53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/** @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"
|
|
|
|
#define GPIO_PxCLR_BASE (GPIO_PACLR_ADDR)
|
|
#define GPIO_PxSET_BASE (GPIO_PASET_ADDR)
|
|
#define GPIO_PxOUT_BASE (GPIO_PAOUT_ADDR)
|
|
// Each port is offset from the previous port by the same amount
|
|
#define GPIO_Px_OFFSET (GPIO_PBCFGL_ADDR-GPIO_PACFGL_ADDR)
|
|
|
|
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)
|
|
{
|
|
if(led/8 < 3) {
|
|
*((volatile int32u *)(GPIO_PxCLR_BASE+(GPIO_Px_OFFSET*(led/8)))) = BIT(led&7);
|
|
}
|
|
}
|
|
|
|
void halClearLed(HalBoardLed led)
|
|
{
|
|
if(led/8 < 3) {
|
|
*((volatile int32u *)(GPIO_PxSET_BASE+(GPIO_Px_OFFSET*(led/8)))) = BIT(led&7);
|
|
}
|
|
}
|
|
|
|
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 int32u *)(GPIO_PxOUT_BASE+(GPIO_Px_OFFSET*(led/8)))) ^= BIT(led&7);
|
|
}
|
|
)
|
|
}
|