求助原子哥，这个还是没懂，不知道哪里错了（gm8142模块）

heat

[mw_shl_code=c,true]#include<stc12c5a.h> #define BYTE unsigned char #define WORD unsigned int #define HIGH 1 #define LOW 0 #define FALSE 0 #define TRUE 1 sbit SCLK=P1^7; sbit DIN=P1^5; sbit DOUT=P1^6; void ClrCS(void) {P14=0;} void SetCS(void) {P14=1;} void Delay(unsigned int nTime) { while(--nTime) {;} } /*********************************************************** Function: Delay Describe: Time delay Input: Byte formated time Output: void ***********************************************************/ /*********************************************************** Function: SPI_Initial Describe: Initialize the SPI interface Input: void Output: void ***********************************************************/ void SPI_Initial(void) { SCLK = LOW; DIN = LOW; DOUT = LOW; Delay(5); } /*********************************************************** Function: SPI_Transmit Describe: Send and receive 16-bit data from the SPI interface Input: 16-bit data to be send Output: 16-bit data of read, user analyse the validity ***********************************************************/ WORD SPITransmit(WORD wSendData) { BYTE i; WORD wReadData; wReadData = 0; for(i = 0; i < 16; i++) { if(wSendData & 0x8000) DIN = 1; else DIN = 0; wReadData<<=1; //Shift first, then fill the bit SCLK = HIGH; wSendData<<= 1; wReadData |= DOUT; //Receive the 16-bit data Delay(5); SCLK = LOW; Delay(5); //Can be comment by acture use } return(wReadData); } unsigned int SendTo814X(unsigned char chigh,unsigned char clow) { unsigned int cTempHigh,cTempLow; unsigned int RevData; ClrCS(); //置814x片选有效 Delay(10); //延时时间参考814x数据手册的要求 cTempHigh=SPITransmit(chigh); //向814X发送高位数据 cTempLow=SPITransmit(clow); //向814X发送低位数据 Delay(10); //延时时间参考814x数据手册的要求 SetCS(); //置814x片选无效 RevData=cTempHigh<<8|cTempLow; return RevData; //返回从814x读出的数据 } unsigned int Write814xConfig(unsigned char n,unsigned char high,unsigned char low) //n 表示设置的串口号，high表示给配置寄存器的高位字节(低三位有效),low表示给配置寄存器的低位字节 { unsigned char ch; unsigned int RevData; high=high&0x07; ch= 0xc0 | (n<< 3); high=high|ch; RevData=SendTo814X(high,low); //向指定的串口功能设置寄存器写配置 Delay(5); return RevData; } unsigned int SendToAllCom(unsigned char c,bit Pt) //c为需要发送的数据,Pt为第九位数据 { unsigned char ch; unsigned int RevData; if(Pt) ch=0xa1; else ch=0xa0; RevData=SendTo814X(ch,c); return RevData; //向所有串口发送数据并读出接收FIFO数据 } void main() { Write814xConfig(1,0xc0,0xaa); //SendToAllCom(0xaa,0); }[/mw_shl_code]

heat

[mw_shl_code=c,true]#include<stc12c5a.h> #define BYTE unsigned char #define WORD unsigned int #define HIGH 1 #define LOW 0 #define FALSE 0 #define TRUE 1 sbit SCLK=P1^7; sbit DIN=P1^5; sbit DOUT=P1^6; void ClrCS(void) {P14=0;} void SetCS(void) {P14=1;} void Delay(unsigned int nTime) { while(--nTime) {;} } /*********************************************************** Function: Delay Describe: Time delay Input: Byte formated time Output: void ***********************************************************/ /*********************************************************** Function: SPI_Initial Describe: Initialize the SPI interface Input: void Output: void ***********************************************************/ void SPI_Initial(void) { SCLK = LOW; DIN = LOW; DOUT = LOW; Delay(5); } /*********************************************************** Function: SPI_Transmit Describe: Send and receive 16-bit data from the SPI interface Input: 16-bit data to be send Output: 16-bit data of read, user analyse the validity ***********************************************************/ WORD SPITransmit(WORD wSendData) { BYTE i; WORD wReadData; wReadData = 0; for(i = 0; i < 16; i++) { if(wSendData & 0x8000) DIN = 1; else DIN = 0; wReadData<<=1; //Shift first, then fill the bit SCLK = HIGH; wSendData<<= 1; wReadData |= DOUT; //Receive the 16-bit data Delay(5); SCLK = LOW; Delay(5); //Can be comment by acture use } return(wReadData); } unsigned int SendTo814X(unsigned char chigh,unsigned char clow) { unsigned int cTempHigh,cTempLow; unsigned int RevData; ClrCS(); //置814x片选有效 Delay(10); //延时时间参考814x数据手册的要求 cTempHigh=SPITransmit(chigh); //向814X发送高位数据 SetCS(); Delay(10); ClrCS(); cTempLow=SPITransmit(clow); //向814X发送低位数据 Delay(10); //延时时间参考814x数据手册的要求 SetCS(); //置814x片选无效 RevData=cTempHigh<<8|cTempLow; return RevData; //返回从814x读出的数据 } unsigned int Write814xConfig(unsigned char n,unsigned char high,unsigned char low) //n 表示设置的串口号，high表示给配置寄存器的高位字节(低三位有效),low表示给配置寄存器的低位字节 { unsigned char ch; unsigned int RevData; high=high&0x07; ch= 0xc0 | (n<< 3); high=high|ch; RevData=SendTo814X(high,low); //向指定的串口功能设置寄存器写配置 Delay(5); return RevData; } unsigned int SendToAllCom(unsigned char c,bit Pt) //c为需要发送的数据,Pt为第九位数据 { unsigned char ch; unsigned int RevData; if(Pt) ch=0xa1; else ch=0xa0; RevData=SendTo814X(ch,c); return RevData; //向所有串口发送数据并读出接收FIFO数据 } void main() { Write814xConfig(1,0xc0,0xaa); //SendToAllCom(0xaa,0); }[/mw_shl_code]

heat

我改了一下代码

heat

而且在debug里面的P1^6 P1^5 P1^4都是没有的，但是用示波器却能看到

正点原子

帮顶。。。。

will831

很想请教下这个芯片的问题