9-1 LED点阵屏显示图形.zip

#include <REG52.H> #include "Delay.h" sbit RCK=P3^5; //RCLK sbit SCK=P3^6; //SRCLK sbit SER=P3^4; //SER #define MATRIX_LED_PORT P0 /** * @brief 74HC595写入一个字节 * @param Byte 要写入的字节 * @retval 无 */ void _74HC595_WriteByte(unsigned char Byte) { unsigned char i; for(i=0;i<8;i++) { SER=Byte&(0x80>>i); SCK=1; SCK=0; } RCK=1; RCK=0; } /** * @brief LED点阵屏显示一列数据 * @param Column 要选择的列，范围：0~7，0在最左边 * @param Data 选择列显示的数据，高位在上，1为亮，0为灭 * @retval 无 */ void MatrixLED_ShowColumn(unsigned char Column,Data) { _74HC595_WriteByte(Data); MATRIX_LED_PORT=~(0x80>>Column); Delay(1); MATRIX_LED_PORT=0xFF; } void main() { SCK=0; RCK=0; while(1) { MatrixLED_ShowColumn(0,0x78); MatrixLED_ShowColumn(1,0x84); MatrixLED_ShowColumn(2,0x82); MatrixLED_ShowColumn(3,0x41); MatrixLED_ShowColumn(4,0x41); MatrixLED_ShowColumn(5,0x82); MatrixLED_ShowColumn(6,0x84); MatrixLED_ShowColumn(7,0x78); } }