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据网上介绍可以在发送数据后先关掉行驱动，等数据锁存后再开行驱动，我试了一下，但是必须加延时，加了延时拖尾没有了，但是字体移动时，字体上半部分比下半部分要先移动，不加延时的话，又不能消隐，气死我了。我用的是74hc138两片做行驱动，595列驱动。
程序如下： #include #define uint unsigned int #define uchar unsigned char ***it DS = P3^1; ***it RCK = P3^2; ***it SCK = P3^3; ***it AOE = P1^0; ***it BOE = P1^1; uchar code wenzi[] = { 
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7个回答
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你的时序还是不对！要等到上下的数据都锁存后才开行驱动的。
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能否帮我修改一下，我用的是行列式（顺向<--）扫描字模
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2017-11-1 14:55:52
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2017-11-7 17:27:42
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请大侠看一下程序：
 #include #define uint unsigned int #define uchar unsigned char ***it DS = P3^1; ***it RCK = P3^2; ***it SCK = P3^3; ***it INH = P3^0; ***it OE = P2^0; uchar code wenzi[] = { 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, 0x04,0x10,0x24,0x08,0x44,0x06,0x84,0x01, 0x64,0x82,0x9C,0x4C,0x40,0x20,0x30,0x18, 0x0F,0x06,0xC8,0x01,0x08,0x06,0x08,0x18, 0x28,0x20,0x18,0x40,0x00,0x80,0x00,0x00,/*"欢",0*/ 0x40,0x00,0x40,0x40,0x42,0x20,0xCC,0x1F, 0x00,0x20,0x00,0x40,0xFC,0x4F,0x04,0x44, 0x02,0x42,0x00,0x40,0xFC,0x7F,0x04,0x42, 0x04,0x44,0xFC,0x43,0x00,0x40,0x00,0x00,/*"迎",1*/ 0x40,0x80,0x40,0x80,0x42,0x40,0x44,0x20, 0x58,0x18,0xC0,0x07,0x40,0x00,0x7F,0x00, 0x40,0x00,0xC0,0x3F,0x50,0x40,0x48,0x40, 0x46,0x40,0x40,0x40,0x40,0x78,0x00,0x00,/*"光",2*/ 0x00,0x00,0xF8,0x1F,0x00,0x00,0x00,0x00, 0xFF,0xFF,0x40,0x00,0x20,0x00,0x18,0x7F, 0x0F,0x21,0x18,0x21,0x68,0x3F,0x08,0x21, 0x08,0x21,0x08,0x7F,0x08,0x00,0x00,0x00,/*"临",3*/ 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 }; void delay(uint time) { uchar i; for(i=0;i void hc595_senddat(unsigned char dat) { unsigned char i; dat=~dat; for(i=0;i<8;i++) { DS=dat&0x80; SCK=1; SCK=0; dat<<=1; } } void main() { unsigned char i,n; unsigned int k,m; char j; m=sizeof(wenzi); SCK=0; RCK=0; OE = 1; INH=0; while(1) { for(k=0;k for(n=0;n<2;n++) { for(i=0;i<16;i++) { //delay(190); for(j=3;j>=0;j--) { hc595_senddat(wenzi[(32*j+2*i+k)%m]); hc595_senddat(wenzi[(32*j+2*i+1+k)%m]); } OE=1; P1=i; RCK=0; RCK=1; delay(15); OE=0; RCK=0; //INH=0; delay(40); } } } } } |
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不错，很好的经验分享，辛苦麻烦了，欠缺这方面的资料，非常感谢。
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