gprs_cpu_port.c

uccos2的的源码文件

/****************************************Copyright (c)**************************************************

********************************************************************************************************/

#include "config.H"
/*********************************************************************************************************
** Function name:			IRQ_UART
**
** Descriptions:			UART interrupt server function
********************************************************************************************************/
extern void GEC_GPRS_RVC_HANDLE(uint8 i);
extern void GEC_GPRS_RVC_HANDLE(uint8 i);

        void  UART1_irq_server(void)  
{
    	uint16 temp16;
	
	temp16 = rUFSTAT1;
	
	if(temp16 & (1<<9))//Tx FIFO FULL
	{
		//ERR
	}
	else if((temp16 & 0x00f0) == 0 )//Tx FIFO == 0
	{
		//SEND DATA
	}
	if(temp16 & (1<<8))//Rx FIFO FULL
	{
		//REVICE DATA
	}
	else if(temp16 & 0x000f)//Rx FIFO > 0
	{
		//REVICE DATA
		do
        {
            GEC_GPRS_RVC_HANDLE(rURXH1);
        } while(rUFSTAT1 & 0x000f);
        //rUTXH1 = rURXH1;	
	}
	
	temp16 = rUERSTAT1;//READ ERR STATUS
	
	rSRCPND = BIT_UART1;
	rSUBSRCPND = BIT_SUB_RXD1|BIT_SUB_ERR1;
	rINTPND = rINTPND;
}


uint8  UART1_Ini(uint32 baud)  //UART1

{  
    uint8 i;
	
	VICVectAddr[23]  = (uint32) UART1_irq_server;

    //中断允许
    rINTMSK &=~(BIT_UART1);
    rINTSUBMSK &=~(BIT_SUB_RXD1|BIT_SUB_ERR1);
	
	// IO口设置 (GPH5,GPH4)
	rGPHUP = rGPHUP | (0x03<<4);
	rGPHCON = (rGPHCON & (~0x00000F00)) | (0x00000A00);	

    rUFCON1 = 0x97;   	// 8tx,8rx,reset fifo ,enable fifo
	rUMCON1 = 0x01;   	// AFC(流控制)禁能
	rULCON1 = 0x03; 	// 禁止IRDA，无奇偶校验，1位停止位，8位数据位
	rUCON1  = 0x3c5; 	// 使用PCLK来生成波特率，发送中断为电平触发模式，接收中断为边沿触发模式，
                    	// 禁止接收超时中断，使能接收错误中断，正常工作模式，中断或查询方式(非DMA)	
	// 串口波特率设置
	rUBRDIV1=(int)(PCLK/16.0/baud + 0.5) -1; 
	
   	for(i=0;i<100;i++);

   	return 1;
}

/*********************************************************************************************************
** Function name:			GEC_GPRS_Send_String
**
** Descriptions:			Send string
********************************************************************************************************/
void	GEC_GPRS_Send_String(char * strptr)
{
	uint8	i,j,k,l;
	k = strlen(strptr);
	l = 0;
	do
	{
		j = (k > 8) ? 8 : k;
		for(i=0; i<j; i++)
			rUTXH1 = strptr[i + (l * 8)];	
		l++;
		k = k - j;
		while( (rUTRSTAT1 & 0X02) == 0 );
	}while(k > 0);
}