Printf failed

Alex,

That's not enough information to really help. What's your stdout device? What options have you set on your system library? Have you tried single-stepping into the printf(), to find out just where it's failing?

Having this sort of information is mandatory.

Best Regards,

- slacker

Alex,

what kind of NIOS are you using!? A reference design or did you create one on your own?! You might have forgotten to add the jtag_uart or something, so the console is disabled...

Good luck,

Danny

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.

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originally posted by burdalex@Dec 6 2005, 06:08 AM

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.

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Co-ask!

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originally posted by burdalex@Dec 5 2005, 01:16 PM

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 it do not work?

thanks at advance.

alex

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