Forum Discussion

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

printf on Nios2 not working properly

Hi, I am working on a custom board with Nios2. I am facing a weird problem with printf. When I do any printf I am getting an inversed output. i.e. If I do printf("Hello World"); I get ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Yapp. Now I know its not a problem in U-Boot or Nios II programs or the kernel.

Its a problem of byte swap due to some wrong hardware configuration. We are trying to figure out the problem in the hardware.

We have already checked the configuration data for SDRAM and looks correct. We are trying with different phase shifts.

Now we have noticed that there is swapping in nibbles too.

Thanks for your help.

Looking forward for more support.

Regards,

Shakthi