Problem With Serial Communication

I am using the RXD & TXD of the '51 to communicate with 232 and now i want to use the second port of the 232. How do i go abt doin it since i have exhausted my RXD and TXD. Please Help. ajay
Problems with serial communication

I have implemented a new serial data transfer protocol in our 8051 system (80C552). I tryed to write the received characters immediately back to the terminal with the following commands: ucrs232_buffer...
Problem With Serial Communication

I am using the RXD & TXD of the '51 to communicate with 232 and now i want to use the second port of the 232. How do i go abt doin it since i have exhausted my RXD and TXD. Please Help. ajay
Problems with serial communication

I have implemented a new serial data transfer protocol in our 8051 system (80C552). I tryed to write the received characters immediately back to the terminal with the following commands: ucrs232_buffer...
Problems with P89LPC932 serial communication

Hello everybody I have connected the P89LPC932 microcontroller to the PC and try to send and receive characters using the windows hyperterminal. The communication seems to be OK, interruptions work...