电子秤 - 图文(6)

{

//每0.5秒钟刷新重量 TL0 = 0x06;

TH0 = 0xf8; //定时器赋予初值

Counter ++; if (Counter >= 200) {

FlagTest = 1;

Counter = 0;

} }

//===============main program===================// void main(void) {

Rom_CS=1; initial_lcd(); EA = 0; Data_Init(); Port_Init(); Timer0_Init(); //初始化完成，开中断 EA = 1; //背光 LedA = 1;

clear_screen(); //clear all dots

display_GB2312_string(1,1,\电子秤初始化....\ To_Zero();

display_GB2312_string(1,1,\电子秤初始化成功\ display_GB2312_string(3,1,\重量: g\

while(1) {

//每0.5秒称重一次

if (FlagTest==1) {

//称重，得到重量值weight，单位为g

AdVal=ReadCount(); weight=FullScale-AdVal/1000; if (weight>0x8000) weight=0; weight=10000*weight/FullScale;

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weight=weight*RATIO; //如果超量程，则报警 if (weight >= 10000) {

beep = 0; alert = 0;

display_GB2312_string(3,60,\display_GB2312_string(7,44,\

}

//如果不超量程 else {

beep = 1; alert = 1;

//显示重量值

Display_Weight();

//清测试标志

FlagTest = 0;

} }

//获取按键

keycode = Getkeyboard(); //有效键值0-15

if ((keycode<16)&&(FlagKeyPress==0)) {

FlagKeyPress = 1; KeyPress(keycode); FlagKeyPress = 0;

} delay(20);

} }

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实物图：

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