帮我用C语言写一份MS5199T驱动程序
时间: 2024-03-05 19:50:07 浏览: 29
好的,MS5199T是一款7段数码管,以下是一个简单的C语言程序,用于控制该数码管的显示:
```c
#include <stdio.h>
#include <wiringPi.h>
#define A_PIN 0
#define B_PIN 1
#define C_PIN 2
#define D_PIN 3
#define E_PIN 4
#define F_PIN 5
#define G_PIN 6
#define DP_PIN 7
void display(int num) {
switch (num) {
case 0:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, HIGH);
digitalWrite(E_PIN, HIGH);
digitalWrite(F_PIN, HIGH);
digitalWrite(G_PIN, LOW);
digitalWrite(DP_PIN, LOW);
break;
case 1:
digitalWrite(A_PIN, LOW);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, LOW);
digitalWrite(E_PIN, LOW);
digitalWrite(F_PIN, LOW);
digitalWrite(G_PIN, LOW);
digitalWrite(DP_PIN, LOW);
break;
case 2:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, LOW);
digitalWrite(D_PIN, HIGH);
digitalWrite(E_PIN, HIGH);
digitalWrite(F_PIN, LOW);
digitalWrite(G_PIN, HIGH);
digitalWrite(DP_PIN, LOW);
break;
case 3:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, HIGH);
digitalWrite(E_PIN, LOW);
digitalWrite(F_PIN, LOW);
digitalWrite(G_PIN, HIGH);
digitalWrite(DP_PIN, LOW);
break;
case 4:
digitalWrite(A_PIN, LOW);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, LOW);
digitalWrite(E_PIN, LOW);
digitalWrite(F_PIN, HIGH);
digitalWrite(G_PIN, HIGH);
digitalWrite(DP_PIN, LOW);
break;
case 5:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, LOW);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, HIGH);
digitalWrite(E_PIN, LOW);
digitalWrite(F_PIN, HIGH);
digitalWrite(G_PIN, HIGH);
digitalWrite(DP_PIN, LOW);
break;
case 6:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, LOW);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, HIGH);
digitalWrite(E_PIN, HIGH);
digitalWrite(F_PIN, HIGH);
digitalWrite(G_PIN, HIGH);
digitalWrite(DP_PIN, LOW);
break;
case 7:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, LOW);
digitalWrite(E_PIN, LOW);
digitalWrite(F_PIN, LOW);
digitalWrite(G_PIN, LOW);
digitalWrite(DP_PIN, LOW);
break;
case 8:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, HIGH);
digitalWrite(E_PIN, HIGH);
digitalWrite(F_PIN, HIGH);
digitalWrite(G_PIN, HIGH);
digitalWrite(DP_PIN, LOW);
break;
case 9:
digitalWrite(A_PIN, HIGH);
digitalWrite(B_PIN, HIGH);
digitalWrite(C_PIN, HIGH);
digitalWrite(D_PIN, HIGH);
digitalWrite(E_PIN, LOW);
digitalWrite(F_PIN, HIGH);
digitalWrite(G_PIN, HIGH);
digitalWrite(DP_PIN, LOW);
break;
default:
digitalWrite(A_PIN, LOW);
digitalWrite(B_PIN, LOW);
digitalWrite(C_PIN, LOW);
digitalWrite(D_PIN, LOW);
digitalWrite(E_PIN, LOW);
digitalWrite(F_PIN, LOW);
digitalWrite(G_PIN, LOW);
digitalWrite(DP_PIN, LOW);
break;
}
}
int main() {
wiringPiSetup();
pinMode(A_PIN, OUTPUT);
pinMode(B_PIN, OUTPUT);
pinMode(C_PIN, OUTPUT);
pinMode(D_PIN, OUTPUT);
pinMode(E_PIN, OUTPUT);
pinMode(F_PIN, OUTPUT);
pinMode(G_PIN, OUTPUT);
pinMode(DP_PIN, OUTPUT);
while (1) {
for (int i = 0; i < 10; i++) {
display(i);
delay(1000);
}
}
return 0;
}
```
请注意,这个程序需要使用WiringPi库,因此编译时需要链接这个库。此外,需要将数码管的引脚连接到树莓派的GPIO引脚上。