Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Communication with RS232 UART

Hello, I am just trying to see some activity out of the Avalon RS232 UART. I have instrumented my board's TX and RX lines on my 232 device ands am running the simple example below( Took fro...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hello,

Just an update to this problem. The nios2-terminal problem was due I believe to another session already open, hint I got from Altera. However, the simple HAL file example, where the UART is treated as a character device still does not work. I have double checked my connections,SOPC build, pin files, analyzer settings, trigger,etc, but I do not see any activity on the TX pin of the FPGA when I run my example( borrowed from Altera's software manual).

Any thoughts on UART RS232 comm?

Thanks.