output.c

基于AT91SAM7S64的温度计

 #include  "board.h"
 #include "at91sam7s64.h"
 #include "lib_at91sam7s64.h"
 #include "ADS.h"
 #include "Output.h"


 //*----------------------------------------------------------------------------
//* Function Name       : Init_Debug
//* Object              : 调试串口初始化  (固定波特率115200)
//* Input Parameters    : none
//* Output Parameters   : none
//*----------------------------------------------------------------------------
void Init_Debug(void)
{
	AT91F_DBGU_CfgPIO();
	// Configure DBGU
	AT91F_US_Configure (
		(AT91PS_USART) AT91C_BASE_DBGU,     // DBGU base address
		MCK,             					// 60 MHz
		AT91C_US_ASYNC_MODE,        		// mode Register to be programmed
		115200 ,              			// baudrate to be programmed
		0);                   				// timeguard to be programmed
	// Enable Transmitter
	AT91F_US_EnableTx((AT91PS_USART) AT91C_BASE_DBGU);
	// Enable Receiver
	AT91F_US_EnableRx((AT91PS_USART) AT91C_BASE_DBGU);
}

 //*----------------------------------------------------------------------------
//* \fn    AT91F_DBGU_Printk
//* \brief This function is used to send a string through the DBGU channel (Very low level debugging)
//*----------------------------------------------------------------------------
void AT91F_DBGU_Printk(
	char *buffer) // \arg pointer to a string ending by \0
{
	while(*buffer != '\0') {
		while (!AT91F_US_TxReady((AT91PS_USART)AT91C_BASE_DBGU));
		AT91F_US_PutChar((AT91PS_USART)AT91C_BASE_DBGU, *buffer++);
	}
}


//*----------------------------------------------------------------------------
//* Function Name       : bcd2bin
//* Object              : BCD码转二进制
//* Input Parameters    : none
//* Output Parameters   : none
//*----------------------------------------------------------------------------
INT8U bcd2bin(INT8U c)  
{
	return ((c>>4)*10) + (c&0x0f);
}


//*----------------------------------------------------------------------------
//* Function Name       : pri
//* Object              : 把数字显示出来
//* Input Parameters    : none
//* Output Parameters   : none
//*----------------------------------------------------------------------------
void pri(INT32U offset)
{
	INT8U buffer[11];
	INT8U i;
	buffer[0] = ((offset /10000000000ll))+0x30;
	buffer[1] = ((offset %1000000000)/100000000)+0x30;	
	buffer[2] = ((offset %100000000) /10000000)+0x30;
	buffer[3] = ((offset %10000000)  /1000000)+0x30;
	buffer[4] = ((offset %1000000)   /100000)+0x30;
	buffer[5] = ((offset %100000)    /10000)+0x30;
	buffer[6] = ((offset %10000)     /1000)+0x30;
	buffer[7] = ((offset %1000)      /100)+0x30;
	buffer[8] = ((offset %100)       /10)+0x30;
	buffer[9] = (offset %10) +0x30;
	buffer[10] = '\0';
	
	for(i=0;i<9;i++)
	{
		if(buffer[i] =='0')
		{
			buffer[i] = ' ';	
		}
		else
		{
			break;
		}
	}
	AT91F_DBGU_Printk((char *)&buffer[i/*10-bit*/]);
}