t.h

at89c51 读取写入 at29c040 4M flash的 C源代码

sbit P3_0 = 0xB0;
sbit P3_1 = 0xB1;
sbit P3_2 = 0xB2;
sbit P3_3 = 0xB3;
sbit P3_4 = 0xB4;
sbit P3_5 = 0xB5;
sbit P3_6 = 0xB6;
sbit P3_7 = 0xB7;

#define KEY1 P3_0
#define KEY2 P3_1
#define KEY3 P3_2

#define LEDOUT P1
#define WE P3_6
#define OE P3_7
#define LE P3_3