Marcelino Just a quick guess is that you may need a null modem crossover. Phil --- In , "marcelino muliawan." <m4rcel@l...> wrote: > I have a C5402 DSK, and I'm trying to do a serial communication using the DB9 connector to a microcontroller(AT89C52). > The microcontroller can communicate serially with my computer perfectly, and so does the TMS320VC5402 also can communicate serially with my computer perfectly. > > The problem is, using the same UART configuration(9600 baud, 8 bit data, 1 stop bit, no parity), why can't my TMS and my microcontroller communicate with each other? > > Can anyone tell me some possible solutions or informations what may cause this problem? > Thank you. |