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++
12603 Discussions

UART serial problem

Altera_Forum
Honored Contributor II
‎01-06-2011 02:35 PM
956 Views

Hi, 

 

I'm trying to read pixel data from the serial port on the de2-70 board. This is done via the UART serial core and the Nios II processor. However it appears that this serial core has a buffer of only 63 characters. When I use really low serial speeds it can receive without a problem. But when I increase the speed, the buffer gets full before I can read the data. How can I fix this? Should I use interrupts to handle incoming data or is there a core available that has a larger buffer? Any help is welcome. 

 

Thanks
0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎01-06-2011 04:01 PM
233 Views

you could give the FIFOed UART a try: 

 

http://alterawiki.com/wiki/fifoed_avalon_uart
0 Kudos
Copy link
Reply

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.