Cna somebody help this is the first time that have tried to use a serial port on and 80552 phytec mini module. I can get it to send the data from the chip to the pc but i can't get the data that i send form the pc to the chip to triger and send me something back. is there something that i need to do i have put in some of the program. while(1) { while (com_getchar() != 'P'); com_putchar('T'); } The serial function was taken form the someone form keil.