esp8266驱动FD1642芯片的四位数码管程序
esp8266小巧便宜适合各种DIY，网上买了一片FD1642芯片的四位数码管，橙色的暖色很好看。只是这个芯的的驱动不好找，网上找了几个51用的驱动。在esp8266上很不好用，网上程序各种坑。折腾了一天，参考官网芯片时序图及说明终于改好了能用的驱动。以后慢慢的做个网络对时时钟也不错哈哈。现将相关程序附上:#defineP_CT_CLK14 //CLK接口
#defineP_CT_DATA13 //DATA 接口
const uint8 Lcd_tab =
{0xFC, 0x60, 0xDA, 0xF2, 0x66, 0xB6, 0xBE, 0xE0, 0xFE, 0xF6, 0xEE, 0x3E, 0x9C, 0x7A, 0x9E, 0x8E}; //共阴极
//Q2接seg AQ9 接seg G 中间按顺序接
int numb=888;//测试显示初始数字
void setup()
{
pinMode(P_CT_DATA, OUTPUT);
pinMode(P_CT_CLK, OUTPUT);
digitalWrite(P_CT_DATA, HIGH);
digitalWrite(P_CT_CLK, LOW);
}
void Nop(uint8 T_Dly)
{
while (T_Dly--);
return ;
}
void ct1642_send_data(uint8 ct_dis_data, uint8 ct_com)
{
uint8 ct_addr; //存储数码管位置
uint8 i;
switch (ct_com)
{
case 0: {
ct_addr = 0xee; //显示C1位数据 数码管为共阴极,将要点亮的COM置0以显示该COM
break;
}
case 1: {
ct_addr = 0xed; //显示C2位数据
break;
}
case 2: {
ct_addr = 0xeb; //显示C3位数据
break;
}
case 3: {
ct_addr =0xe7; //显示C4位数据
break;
}
case 4: {
ct_addr = 0xff;//扫描键盘,关闭COM1
break;
}
default: {
ct_addr = 0xff;
ct_dis_data = 0x00;
break;
}
}
for (i = 0; i < 8; i++) //发送8位地址
{
digitalWrite(P_CT_CLK, LOW);
if ( (ct_addr >> i) & 0x01 )
{
digitalWrite(P_CT_DATA, HIGH);
Nop(1);//此处根据单片机的指令周期而定
}
else
{
digitalWrite(P_CT_DATA, LOW);
Nop(1);
}
digitalWrite(P_CT_CLK, HIGH); //上升沿输出一位
Nop(1);
}
//发送两个空位,补足要发送的18位
digitalWrite(P_CT_CLK, LOW);
digitalWrite(P_CT_DATA, HIGH);
Nop(1);
digitalWrite(P_CT_CLK, HIGH);
Nop(1);
digitalWrite(P_CT_CLK, LOW);
Nop(1);
digitalWrite(P_CT_CLK, HIGH);
Nop(1);
for (i = 0; i < 8; i++) //发送8位数据
{
digitalWrite(P_CT_CLK, LOW);
if ( (ct_dis_data << i) & 0x80)
{
digitalWrite(P_CT_DATA, HIGH);
Nop(1);
}
else
{
digitalWrite(P_CT_DATA, LOW);
Nop(1);
}
digitalWrite(P_CT_CLK, HIGH);
Nop(1);
}
digitalWrite(P_CT_CLK, HIGH); //输出数据
digitalWrite(P_CT_DATA, LOW);
Nop(1);
digitalWrite(P_CT_DATA, HIGH);
Nop(1);
digitalWrite(P_CT_CLK, LOW);
digitalWrite(P_CT_DATA, LOW);
Nop(1);
digitalWrite(P_CT_DATA, HIGH);
Nop(2);
return;
}
void FD1642_display(unsigned int k)
{
ct1642_send_data(Lcd_tab, 0);
k /= 10;
if (k != 0)
{
ct1642_send_data(Lcd_tab, 1);
k /= 10;
if (k != 0)
{
ct1642_send_data(Lcd_tab, 2);
k /= 10;
if (k != 0)
{
ct1642_send_data(Lcd_tab, 3);
}
}
}
}
void loop()
{
int p=0;
while(p<5000)
{
FD1642_display(numb);
p++;
}
numb++;
}
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