Stuff

void processInput(void)
{
	char tempstr[16];
	int j;
	unsigned char CRC;
	tempstr[0]=0; // clear for later use
	CRC=comInput1[0]+3;
	if(comInputLoc1>=CRC) // comInputLoc1 = input from com1, how many bytes are in the buffer
	{
		for(j=0;j<=CRC;j++)
		{
			tempstr[j]=comInput1[j];
			comInput1[j]=comInput1[j+tempstr[0]+3];
		}
		comInputLoc1=comInputLoc1-(tempstr[0]+3);
		comInput1[comInputLoc1+1]=0;
	}
	if(tempstr[0]!=0) // Validate CRC
	{
		CRC=0;
		for(j=0;j<tempstr[0]+2;j++)
		{
			CRC=CRC+tempstr[j];
		}
		CRC=0xff-CRC;
		CRC=CRC+1;
		if(CRC!=tempstr[j]) tempstr[0]=0; // Clear it out, it failed
	}
	if(tempstr[0]!=0) // process the commands coming in
	{
		switch(tempstr[2])
		{
			case 0x00:
				break;
			case 0x01: // Send alternator Voltage
				CRC=0;
				tempstr[0]=3;
				j=altVoltOutConv; // fill in with real data later
				j=j >> 8; // strip lower bytes
				tempstr[3]=j;
				j=altVoltOutConv; // fill in with real data later
				j=(char)j;
				tempstr[4]=j;
				CRC=tempstr[0]+tempstr[1]+tempstr[2]+tempstr[3]+tempstr[4];
				CRC=0xff-CRC;
				CRC++;
					tempstr[5]=CRC;
				break;
                         default:
                                break;
                  }
        }
}