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Altera_Forum
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20 years ago

Printf failed

Hi all. I using our custom board (2C35) and i have aproblem with IO. Everything seems O.K. (like r/w SDRAM) but simple printf("Hello world"); is not working. Is anybody have an idea why ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Dear Danny and slacker.

1. We use Cyclon II.

2. My in/out/err device is jtag uart.

Now about what happen :

If i use in sys_lib options "small C library", printf is working, but it prints in console window just a point "." on every char or integer. If "small C library" option disabled, printf do not print nothing.

** May be it is depends to memory mapping of compiler, like stack (we had problems with the SDRAM before).

Thanks a lot.

Alex.