led.h

来自「freecale单片机基于bdm接口的一些源代码」· C头文件 代码 · 共 17 行

#define LED_INIT      PTD_PTD0=1; DDRD_DDRD0=1;   /* LED off, LED pin is output */
#define LED_SW_ON     PTD_PTD0=0;
#define LED_SW_OFF    PTD_PTD0=1;
#define LED_SW_TOGGLE PTD_PTD0^=1;

#define LED_BLINK_PERIOD  150   /* duration of LED period */
#define LED_OFF_TIME      75    /* how long should the LED be off during the blink period */

#pragma DATA_SEG Z_RAM
typedef enum {
  LED_ON,
  LED_OFF,
  LED_BLINK
} led_state_e;

extern led_state_e led_state;
#pragma DATA_SEG DEFAULT