01-19-2014 07:48 PM
I ve written a simple C-program running on Nios with output on JTAG-Uart Console.Why if the surce code is int m; m=9; printf("%d",m); everthing works perfectly while if the source code is modified in: int m; m=10; printf("%d",m); it does not work anymore ???
01-20-2014 12:44 PM
Hi, telle us more informationfor your 1st problem, What did you get ? "9" on nios2-terminal instead of 10 ? if so, clean and rebuild your nios project. Maybe the new soft was not correctly downloaded, did you get errors ? For your 2nd problem, When you chose Nios II/e (=economic version), do you regenerate the Qsys, recompile the design, redownload to FPGA, do you rebuild the BSP, do you recompile the soft ? regards
01-20-2014 03:31 PM
Thank you for your answerThe code is exactly what I write ! If I ask "printf" to write a integer number (%d) with a single digit it works correctly, otherwise (just changing the 9 in 10) the program restart from the begin in a infinite loop. Actually I've similar problem also using the multiplier (*) operator: sometimes it work but with few marginal changing in the code, the execution restart from the beginning in an infinite loop. However I noticed that this problem is limited to the usage of Nios II-e, while just changing the processor to Nios II-s and with no other modification both the "printf" and the "multiplier" works correctly. > When you chose Nios II/e (=economic version), do you regenerate the Qsys, recompile the design, redownload to FPGA, do you rebuild the BSP, do you recompile the soft ? Of course !