CT107D digitalTube.c

#include "stc15f2k60s2.h"
#include "stdint.h"

code uint8_t tab[] = {    //  0    1    2    3    4    5    6    7    8    9	null
    0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xFF
};
pdata uint8_t dspBuf[8] = {
    10, 10, 10, 10, 10, 10, 10, 10
};  //显示缓冲区

void digitalTubeScan() {
    static uint8_t index = 0;

    P2 = (P2 & 0x1F) | 0xE0;    //使能具体值
    P0 = 0xFF;                    //消隐
    P2 &= 0x1F;                    //锁存

    P2 = (P2 & 0x1F) | 0xC0;    //使能位选
    P0 = (1 << index);            //数码管选择是1有效
    P2 &= 0x1F;

    P2 = (P2 & 0x1F) | 0xE0;    //使能具体值
    P0 = tab[dspBuf[index]];    //
    P2 &= 0x1F;

    index = (index + 1) & 0x07;
}