UART can't run at higher baud rates

Nios® V/II Embedded Design Suite (EDS)

Support for Embedded Development Tools, Processors (SoCs and Nios® V/II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++

UART can't run at higher baud rates

877 Views

I have a design (EP2C8) where I am using the UART in the SOPC system, and when we set the baud rate above 9600 or so, we start having corruption issues. It is very strange, since we had a similar design a couple years ago, and didn't have this issue. I have connected TXD to RXD outside of the SOPC system and verified the physical connections, so I can only conclude that it is inside the SOPC system. We don't use CTS and RTS, but neither did the original system. The software engineer says it is the same code as before.

Has anyone ever run into this issue?

Thanks,

Mark

Link Copied

0 Replies

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.