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

fopen("/dev/uart","w") returning NULL

Altera_Forum
Honored Contributor II
‎02-23-2013 03:37 AM
1,070 Views

Hey guys, 

 

I'm attempting to communicate between my PC to the Nios II via RS-232. 

I've built up my system in SOPC and I'm using the eclipse tool to code in c. 

When I use the function fp = fopen("/dev/uart","w"), I always receive NULL. 

/dev/uart is the correct path according to my system.h file. 

 

Could you offer any advice? 

 

Thanks, 

Justin
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Altera_Forum
Honored Contributor II
‎02-23-2013 03:47 AM
385 Views

To fix the problem I unchecked "Lightweight device driver API" in the BSP editor.

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Altera_Forum
Honored Contributor II
‎10-01-2014 11:05 AM
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--- Quote Start ---  

To fix the problem I unchecked "Lightweight device driver API" in the BSP editor. 

--- Quote End ---  

 

 

It worked for me too. Thanks!
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