dsp28_sci.c

单个表头的显示 运用了MAX7219驱动芯片

		   sci_tx_data[6] = (Fn & 0xFF);

		   sci_tx_data[7] = (Dp >> 8);
		   sci_tx_data[8] = (Dp & 0xFF);
		   sci_tx_data[9] = (Dn >> 8);
		   sci_tx_data[10] = (Dn & 0xFF);

           sci_tx_data[11] = (Np >> 8);
		   sci_tx_data[12] = (Np & 0xFF);
		   sci_tx_data[13] = (Nn >> 8);
		   sci_tx_data[14] = (Nn & 0xFF);

           sci_tx_data[15] = (Tp >> 8);
		   sci_tx_data[16] = (Tp & 0xFF);
		   sci_tx_data[17] = (Tn >> 8);
		   sci_tx_data[18] = (Tn & 0xFF);


		   crc = CRC16(sci_tx_data, 19);
		   sci_tx_data[19] = HIBYTE(crc);
		   sci_tx_data[20] = LOBYTE(crc);

		   sci_tx_num = 21;

		   break;
		}
		break;

	case 0x10:
		switch(address)
		{
		case 0x0080:
		    ff = 1;                                     //当ff=1时，接收触摸屏中传过来的数据
		    Fp = (sci_rx_data[7]<<8) + sci_rx_data[8];
			Fn = (sci_rx_data[9]<<8) + sci_rx_data[10];
			
			Dp = (sci_rx_data[11]<<8) + sci_rx_data[12];
			Dn = (sci_rx_data[13]<<8) + sci_rx_data[14];
			
			Np = (sci_rx_data[15]<<8) + sci_rx_data[16];
			Nn = (sci_rx_data[17]<<8) + sci_rx_data[18];
			
			Tp = (sci_rx_data[19]<<8) + sci_rx_data[20];
			Tn = (sci_rx_data[21]<<8) + sci_rx_data[22];
			if(Tp != 0)                                 //对接收到的换向期时间进行处理
			 {                               
			   cTp = t[Tp - 10];
			 }
			else
			 {
			   cTp = 0;
			 }
			if(Tn != 0) 
			 {
		    	cTn = t[Tn - 10];
			 }
			else
			 {
		 	    cTn = 0;
			 }
			tDp = d[Dp - 3];                            //对接收到的占空比的值进行处理，简单的读表
			tDn = d[Dn - 3];
			cDp = (Uint16)(((unsigned long)f[Fp - 100] * tDp)>>7);
			cDn = (Uint16)(((unsigned long)f[Fn - 100] * tDn)>>7);
			ff = 3;                                    //对ff赋值为3，为下个周期赋值作准备
			break;
		}

		for(i=0; i<6; i++)
		{
			sci_tx_data[i] = sci_rx_data[i];
		}

		crc = CRC16(sci_tx_data, 6);
		sci_tx_data[6] = (crc >> 8);
		sci_tx_data[7] = (crc & 0x00FF);
		sci_tx_num = 8;
		break;
	}

	// 应答
	sci_tx_current = 0;
	ModbusRTUFrameSend();
}
	
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// No more.
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