//-----------------------------------------------------------------
//  名稱: 用8255與74LS154設計的16×16點陣屏
//-----------------------------------------------------------------
//  說明: 本例用8255擴展接口,發送4片8×8點陣屏的行編碼,列碼由4-16
//        譯碼器控制,實現了16×16點陣文字的顯示.
//          
//-----------------------------------------------------------------
#define  F_CPU   2000000UL
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#define INT8U   unsigned char
#define INT16U  unsigned int

//PA,PB,PC端口及命令端口地址定義



//74LS154譯碼器開關


//存放在Flash內存中的漢字點陣數據
prog_uchar Word_Set_OF_16x16[] =
{
/*--  上  --*/
0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x60,0x60,0x60,0x60,0x60,0x60,0x00,0x00,
0x30,0x30,0x30,0x30,0x30,0x30,0x3F,0x3F,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x00,
/*--  海  --*/
0x30,0x63,0x66,0x04,0x30,0xFC,0xFF,0x37,0x76,0xF6,0x36,0xF6,0xF6,0x06,0x00,0x00,
0x30,0x7E,0x0E,0x00,0x03,0x1F,0x1F,0x1B,0x1F,0x5F,0x7B,0x7F,0x3F,0x1B,0x03,0x00,
/*--  大  --*/
0x00,0x30,0x30,0x30,0x30,0x30,0xFF,0xFF,0x30,0x30,0x30,0x30,0x30,0x30,0x00,0x00,
0x00,0x40,0x60,0x30,0x18,0x0E,0x07,0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00,0x00,
/*--  眾  --*/
0x00,0x60,0x60,0x30,0xD8,0xCC,0x07,0x07,0x0C,0xD8,0xF0,0x20,0x60,0x60,0x00,0x00,
0x00,0x30,0x18,0x0C,0x07,0x0F,0x58,0x60,0x30,0x1F,0x0F,0x18,0x30,0x60,0x40,0x00,
/*--  汽  --*/
0x00,0x22,0x66,0xCC,0x20,0xB8,0x9F,0xAF,0xAC,0xAC,0xAC,0xAC,0xAC,0x0C,0x00,0x00,
0x20,0x70,0x3C,0x06,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x3F,0x7F,0x60,0x30,0x00,
/*--  車  --*/
0x00,0x0C,0x8C,0xEC,0xFC,0xBC,0x8F,0xEF,0xEC,0x8C,0x8C,0x8C,0x8C,0x0C,0x00,0x00,
0x00,0x18,0x19,0x19,0x19,0x19,0x19,0x7F,0x7F,0x19,0x19,0x19,0x19,0x18,0x00,0x00,















};

//當前待顯示的漢字索引
//T0中斷程序要使用主程序中不斷變化的wIndex,因此前面必須添加volatile
volatile INT8U wIndex = 0xFF;
//待顯示漢字總個數
INT8U Total_Words = sizeof(Word_Set_OF_16x16) / 32;
//-----------------------------------------------------------------
// 定時器0中斷,以2ms的間隔動態顯示每列數據
// 所顯示的每列數據由8255并行輸出
//-----------------------------------------------------------------
ISR (TIMER0_OVF_vect)
{


}

//-----------------------------------------------------------------
// 主程序
//-----------------------------------------------------------------
int main()
{

 
}