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stc8a--al422B————01，硬件上RE已经接地了。
2022-08-06 13:58:00 【ooolmf】
#include "stc8a8k.h"
#include <stdio.h>
#include "stdlib.h"
#include "stdarg.h"
#include "string.h" //str函数
//22.1184Mhz；
#define DataIn P0
#define DataOut P2
sbit WCK =P1^5;
sbit WEN =P1^4;
sbit WRST =P1^3;
sbit OE =P1^2;
sbit RRST =P1^1;
sbit RCK =P1^0;
//一共8个数据
unsigned char tablecode[]={
0x12,0x34,0x56,0x78,0x9A,0xBC,0xDE,0xF7};
//****************************************************************
#define Uart1_Rec_Maxlength 100
unsigned char Global_Uart1_Rec[Uart1_Rec_Maxlength];//串口1接收空间，100个字节
#define Uart1_END_CODE '#' //帧尾自定义符号
unsigned char Uart1_Rec_Byte_Length=0;//动态长度，在0-最大Uart1_Rec_Maxlength=100之间
unsigned char Uart1_Rec_Frame_Flag=0;//接收一帧标记,=1，接收到一帧数据，=0，没有接受一帧数据
unsigned char Global_uart1cmdnum=0;//串口接收到的命令号
//************************
void UartInit(void); //[email protected]
void UART1_SendData(char dat);
void UartSendStr(char *p);
void Clear_Uart1_Rxbuff(void);
//打开写使能和写时钟
//P0不断发送数据0x12 0x34 0x56 0x78 0x9A 0xBC 0xDE
//打开接收使能和接收时钟；
//然后将数据放到P2口；
//关闭接收使能
//将数据放入数组中；
//将数据发送到串口中，打印出来；
//打开写时钟，继续输出。
void Delay1us() //@22.1184MHz
{
unsigned char i;
i = 6;
while (--i);
}
void Delay5ms() //@22.1184MHz
{
unsigned char i, j;
i = 144;
j = 157;
do
{
while (--j);
} while (--i);
}
void Delay1ms() //@22.1184MHz
{
unsigned char i, j;
i = 29;
j = 183;
do
{
while (--j);
} while (--i);
}
void Delay5us() //@22.1184MHz
{
unsigned char i;
i = 35;
while (--i);
}
//初始化脉冲
void InitAL422B()
{
WEN=1;
WRST =1;
OE=1;
RRST =1;
Delay1ms();
WEN=0;
WRST =0;
Delay1ms();
WRST =1;
WEN=1;
Delay1ms();
OE=0;
RRST =0;//低电平复位，写和读的地址从0开始
Delay1ms();
RRST =1;
OE=1;
Delay1ms();
}
//复位,低电平复位
void ResetWRST_AL422B(void)
{
WEN=0;
WRST =1;
WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0;
WRST =1;
WEN=1;
}
//复位,低电平复位
void ResetRRST_AL422B(void)
{
OE=0;
RRST =1;
RRST =0;RRST =0;RRST =0;RRST =0;RRST =0;RRST =0; RRST =0;RRST =0;RRST =0;RRST =0;RRST =0;RRST =0;
RRST =1;
OE=1;
}
//写操作
//void I2C_SendByte(unsigned char Byte)
//{
// unsigned char i;
// for(i=0;i<8;i++)
// {
// I2C_SDA=Byte&(0x80>>i); //把Byte最高位取出来，赋给SDA
// I2C_SCL=1;
// I2C_SCL=0;
// }
//}
// unsigned char i;
// for(i = 0 ; i < 8 ; i++)
// {
// SDA = dat & (0x80>>i); //依次取出dat的第7、6、5、4……位进行发送
// SCL = 1;
// SCL = 0;
// }
//unsigned char I2C_ReceiveByte(void)
//{
// unsigned char i,Byte=0x00;
// I2C_SDA=1;
// if(i=0;i<8;i++)
// {
// I2C_SCL=1;
// if(I2C_SDA){Byte|=(0x80>>i);} //相当于如果SDA读取的是1，则把Byte的最高位置1
// I2C_SCL=0;
// }
// return Byte;
//}
void WriteAL422B(unsigned char temp)
{
char i=0;
WEN=0;
DataIn = temp;
for(i=8;i>0;i--)
{
WCK=0;
WCK=1;//上升沿，写入数据 I2C_SDA=DataIn&(0x80>>i);
Delay1us();
WCK=0;
}
WCK=0;
WEN=1;
}
// if(I2C_SDA){Byte|=(0x80>>i);} //相当于如果SDA读取的是1，则把Byte的最高位置1
unsigned char ReadAL422B()
{
unsigned char temp=0x00;
char i=0;
DataOut=0x00;
OE=0;
for(i=0;i<8;i++)
{
RCK=0;
//DataOut |=(0x80>>i);
//
RCK=1;//上升沿，写入数据
RCK=0;
}
temp = DataOut;
RCK=0;
OE=1;
return temp;
}
void main()
{
int i=0;
unsigned char ReadVal=0;
P0M0=0x00;
P0M1=0x00;
P1M0=0x00;
P1M1=0x00;
P2M0=0x00;
P2M1=0x00;
P3M0=0x00;
P3M1=0x00;
P4M0=0x00;
P4M1=0x00;
P5M0=0x00;
P5M1=0x00;
P6M0=0x00;
P6M1=0x00;
P7M0=0x00;
P7M1=0x00;
InitAL422B();
UartInit();//串口1，波特率115200，定时器2产生，stc8a8k，22.1184Mhz
ES = 1;
EA = 1;
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
while(1)
{
WEN=0;//允许写操作
WRST =1; WRST =1; WRST =1; WRST =1; WRST =1; WRST =1;
WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0;
WRST =1;WRST =1;WRST =1;WRST =1;WRST =1;WRST =1;
WEN=1;
WEN=0;
DataIn = 0xcd;
for(i=7;i>=0;i--)
{
WCK=0;
WCK=1;//上升沿，写入数据 I2C_SDA=DataIn&(0x80>>i);
Delay1us();
WCK=0;
}
WEN=1;
//ResetRRST_AL422B();//读复位
OE=1;
RRST =1;
RRST =0;RRST =0;RRST =0;
RCK=0; RCK=0; RCK=0;
RCK=1; RCK=1; RCK=1;
RCK=0;RCK=0;RCK=0;
RRST =0;RRST =0;RRST =0; RRST =0;RRST =0;
RRST =1; RRST =1; RRST =1;
OE=1;
OE=0;
for(i=0;i<8;i++)
{
RCK=0;
RCK=1;//上升沿，写入数据
RCK=0;
}
UART1_SendData(DataOut);//串口发送
RCK=0;
OE=1;
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
if(P43==0)
{
Delay5ms();
Delay5ms();
Delay5ms();
Delay5ms();
if(P43==0)
{
while(P43==0);//等待松下按键
//ResetWRST_AL422B();//写复位
WEN=0;//允许写操作
WRST =1;
WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0; WRST =0;
WRST =1;
WEN=1;
WEN=0;
DataIn = 0x34;
for(i=7;i>=0;i--)
{
WCK=0;
WCK=1;//上升沿，写入数据 I2C_SDA=DataIn&(0x80>>i);
Delay1us();
WCK=0;
}
WEN=1;
//ResetRRST_AL422B();//读复位
OE=1;
RRST =1;
RRST =0;RRST =0;RRST =0;RRST =0;RRST =0;RRST =0; RRST =0;RRST =0;RRST =0;RRST =0;RRST =0;RRST =0;
RRST =1;
OE=1;
ReadVal=ReadAL422B();//读一个数据，
UART1_SendData(ReadVal);//串口发送
// Delay1us();Delay1us();Delay1us();Delay1us();Delay1us();
// ReadVal=ReadAL422B();
// UART1_SendData(ReadVal);
// // Delay1us();Delay1us();Delay1us();Delay1us();Delay1us();
// ReadVal=ReadAL422B();
// UART1_SendData(ReadVal);
// Delay1us();Delay1us();Delay1us();Delay1us();Delay1us();
}
}
}
}
//串口1，波特率115200,定时器2产生,
void UartInit(void) //[email protected]
{
SCON = 0x50; //8位数据,可变波特率
AUXR |= 0x01; //串口1选择定时器2为波特率发生器
AUXR &= 0xFB; //定时器2时钟为Fosc/12,即12T
T2L = 0xFC; //设定定时初值
T2H = 0xFF; //设定定时初值
AUXR |= 0x10; //启动定时器2
}
//UART1 发送串口数据，一个字节
void UART1_SendData(char dat)
{
ES=0; //关串口中断
SBUF=dat;
while(TI!=1); //等待发送成功
TI=0; //清除发送中断标志
ES=1; //开串口中断
}
//UART1 发送串口数据，字符串
void UartSendStr(char *p)
{
while (*p)
{
UART1_SendData(*p++);
}
}
//重写putchar函数，可以用printf函数
char putchar(char c)
{
UART1_SendData(c);
return c;
}
//串口1中断服务函数
void Uart1Isr() interrupt 4 using 1
{
unsigned char cmdtemp=0;
if (TI)
{
TI = 0;
}
if (RI)
{
Global_Uart1_Rec[Uart1_Rec_Byte_Length]=SBUF;//将数据放到缓冲区中
Uart1_Rec_Byte_Length++;//递增，不断放到数组中
if(Uart1_Rec_Byte_Length>Uart1_Rec_Maxlength-1)
Uart1_Rec_Byte_Length=0;
RI = 0;
}
}
//清除串口1的内存
void Clear_Uart1_Rxbuff(void)
{
unsigned char *p,i;
p=Global_Uart1_Rec;
for(i=0;i<Uart1_Rec_Maxlength;i++)
{
*p++=0;
}
Uart1_Rec_Byte_Length=0;
Uart1_Rec_Frame_Flag=0;
}
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