12864ADC.rar

/******************************************************************************/ * 【版 本】： V1.0 * 【编译环境】： ICCAVR * 【函数功能】： 12864电压值显示 内部2.54基准电压 短路帽选择2.5v * 【晶 振】: 8M * 【芯 片】: ATMEGA16A * 【硬件连接】： J2短路帽拿掉 */ /******************************************************************************/ #include <iom16v.h> #include <macros.h> #define Set_Bit(val, bitn) (val |=(1<<(bitn))) #define Clr_Bit(val, bitn) (val&=~(1<<(bitn))) #define N 15 //12864 void Write_char(unsigned char start, unsigned char ddata); void Send_byte(unsigned char bbyte); void Delaynms(unsigned int di); void Lcd_init(void); void Disp_img(unsigned char const *img); //unsigned char flag; unsigned int value; unsigned char k=0; unsigned int sum_adc[N]={0}; unsigned char num[]= {"0123456789_:.V"}; unsigned char welcome[]={"通道2:"}; unsigned char input[] ={"通道1:"}; /**************************************************************/ const unsigned char logo[]={ /*-- 调入了一幅图像：C:\Documents and Settings\lwd\桌面\AVR程序\AVR_12864_串行\b01.bmp --*/ /*-- 宽度x高度=127x63 --*/ /*-- 宽度不是8的倍数，现调整为：宽度x高度=128x63 --*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x03,0xF3,0xE0,0x0F,0x8F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 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if(start==0) start_data=0xf8; //写指令 else start_data=0xfa; //写数据 Hdata=ddata&0xf0; //取高四位 Ldata=(ddata<<4)&0xf0; //取低四位 Send_byte(start_data); //发送起始信号 Delaynms(20); //延时是必须的 Send_byte(Hdata); //发送高四位 Delaynms(20); //延时是必须的 Send_byte(Ldata); //发送低四位 Delaynms(20); //延时是必须的 } /******************************************************************************/ void Send_byte(unsigned char bbyte) //发送一个字节 { unsigned char i,j; for(i=0;i<8;i++) { j=bbyte&0x80; //取出最高位 if(j) Set_Bit(PORTA,1); else Clr_Bit(PORTA,1); Set_Bit(PORTA,2); //Delaynms(1); Clr_Bit(PORTA,2); bbyte<<=1; //左移 } } /***