摘要： /* c.c */#define GPJ2CON *((volatile unsigned int *)0xE0200280)#define GPJ2DAT *((volatile unsigned int *)0xE0200284)#define LED_ON 0#define LED_OFF 1#define GPD0CON *((volatile unsigned int *)0xE02000A0)#define GPD0DAT *((volatile unsigned int *)0xE02000A4)#define BEEP_ON 1#define BEEP_OFF 0t... 阅读全文