📄 814xappprogramv1.0.c
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/***********************************************************
Name: 814XAppProgram.c
Descibe: Function package of GM814x's operation
Version: 1.0
Time: 2006.1
Contents: Include all operation and function of GM814x
Copyright: GMIC 2006
***********************************************************/
unsigned char Flag1_T; //814x 串口1发送FIFO空标志
unsigned char Flag2_T; //814x 串口2发送FIFO空标志
unsigned char Flag3_T; //814x 串口3发送FIFO空标志
unsigned char Flag4_T; //814x 串口4发送FIFO空标志
unsigned char Revbuff1; //串口1数据缓存
unsigned char Revbuff2; //串口2数据缓存
unsigned char Revbuff3; //串口3数据缓存
unsigned char Revbuff4; //串口4数据缓存
void ClrCS(void); //置814X片选有效
void SetCS(void); //置814X片选无效
unsigned char SPITransmit(unsigned char c); //MCU 的SPI接口发送1 Byte 数据并接收1 Byte 数据
/***********************************************************
Function: Delay
Describe: Time delay
Input: int formated time
Output: void
***********************************************************/
void Delay(unsigned int nTime)
{
while(--nTime) {;}
}
/***********************************************************
Function: SendTo814X
Describe: send 2 byte to 814x and receive 2 byte from 814x
Input: 2 byte to be send
Output: 2 byte read from 814x
***********************************************************/
unsigned int SendTo814X(unsigned char chigh,unsigned char clow)
{
unsigned int cTempHigh,cTempLow;
unsigned int RevData;
ClrCS(); //置814x片选有效
Delay(5); //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(5); //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
}
/***********************************************************
Function: Gm814XShutdown
Describe: Shutdown the chip
Input: void
Output: void
***********************************************************/
void Gm814XShutdown(void)
{
SendTo814X(0xe0,0x00);
}
/***********************************************************
Function: Gm814XWakeup
Describe: Wakeup the chip
Input: void
Output: void
***********************************************************/
void Gm814XWakeup(void)
{
SendTo814X(0xc0,0x00);
}
/***********************************************************
Function: Write814xConfig
Describe: Set the configure register of 814x
Input: COM number and configure data
Output: 2 byte read from 814x
***********************************************************/
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;
}
/***********************************************************
Function: Read814xConfig
Describe: read out the configure register data
Input: COM number
Output: configure register data
***********************************************************/
unsigned int Read814xConfig(unsigned char n) //n表示串口号
{
unsigned char ch;
unsigned int RevData;
ch = 0x40 | (n<< 3);
RevData=SendTo814X(ch,0x00);
return RevData; //读出指定串口的功能设置寄存器内容
}
/***********************************************************
Function: ReadTFIFOState
Describe: read all transmit FIFO status
Input: void
Output: TFIFO state data
***********************************************************/
unsigned int ReadTFIFOState(void)
{
unsigned int RevData;
RevData=SendTo814X(0x60,0x00);
return RevData; //同时读出所有发送FIFO状态
}
/***********************************************************
Function: SendDataToCom
Describe: send data to UART Com and read out the data of receive FIFO
Input: COM number and data to be send
Output: RFIFO data
***********************************************************/
unsigned int SendDataToCom(unsigned char n,unsigned char c,bit Pt) //n表示串口号，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=0x81;
else
ch=0x80;
ch=ch| (n<< 3);
RevData=SendTo814X(ch,c);
return RevData; //向指定串口发送数据并读出接收FIFO数据
}
/***********************************************************
Function: SendToAllCom
Describe: send data to all UART Com and read out the data of receive FIFO
Input: data to be send
Output: RFIFO data
***********************************************************/
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
}
/***********************************************************
Function: ReadRFIFOData
Describe: read out the data of receive FIFO
Input: void
Output: RFIFO data
***********************************************************/
unsigned int ReadRFIFOData(void)
{
unsigned int RevData;
RevData=SendTo814X(0x00,0x00);
return RevData; // 读出接收FIFO数据
}
/***********************************************************
Function: Managerevdata
Describe: Analyse the data received from 814X
Input: void
Output: void
***********************************************************/
void ManageRevData(unsigned int rdata)
{
unsigned int cTemp;
unsigned char Flag_R;
unsigned char Flag_T;
cTemp =rdata;
if(cTemp&0x8000) //判断R标志
{Flag_R=1;}
cTemp =rdata;
if(cTemp&0x4000) //判断T标志
{Flag_T = 1;}
if(Flag_R)
{
cTemp =rdata>>12;
switch(cTemp&0x03) //判断接收数据来自哪一个子串口
{
case 0:
Revbuff1=rdata&0xff;
break;
case 1:
Revbuff2=rdata&0xff;
break;
case 2:
Revbuff3=rdata&0xff;
break;
case 3:
Revbuff4=rdata&0xff;
break;
default:
break;
}
Flag_R=0;
}
if(Flag_T)
{
cTemp =rdata>>10;
switch(cTemp&0x03) //判断哪一个子串口发送FIFO为空
{
case 0:
Flag1_T=1;
break;
case 1:
Flag2_T=1;
break;
case 2:
Flag3_T=1;
break;
case 3:
Flag4_T=1;
break;
default:
break;
}
Flag_T=0;
}
}
void main() //主函数
{
unsigned char m,i,s[10];
U16 Dout;
int a[2];
unsigned char j[10]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09};
COM_Init();
LCD_Init();
while(1)
{
for(i=0;i<9;i++)
{
m=j[i];
Dout=SendTo814X(0x48,m);
delay(2000);
}
}
}
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