key.h

ISD4002语音芯片驱动

#include "reg51.h"


sbit KEY_A    =  P1^0;
sbit KEY_B    =  P1^1;
sbit KEY_C    =  P1^2;
sbit KEY_D    =  P1^3;
sbit KEY_P    =  P3^7;

unsigned char SCAN_KEY(void);