SOPC builder

[Altera_Forum]

hi, my problem is that i'm trying to get floating point numbers in nios; i had done my program yesterday and it was succesfull when it generated, but in nios it was giving 0 when i wrote numbers with printf. 

that's why i found some documents today and i had changed my sopc builder's cpu settings with adding floating point hardware and check the division factor but nothing else and then i push generate button but it had failed   Error: Failed to refresh PTF file  and know all the sopc programs give the same error, and i can't do anything. could you say what can i do:confused:.

[Altera_Forum]

Hi 

 I've done programs with NIOS II with FP custom instructions and they've work fine. Remember that in order to use printf you have to use something like %4.2 (4 integer digits and 2 decimal).  Try to create a new C/C++ application with the program and the PTF file generated.

[Altera_Forum]

thanks to you. I will try it.

[Altera_Forum]

--- Quote Start ---  my problem is that i'm trying to get floating point numbers in nios; i had done my program yesterday and it was succesfull when it generated, but in nios it was giving 0 when i wrote numbers with printf.  --- Quote End ---  Double check that the "enable small c library" option is not selected in your BSP settings. The small C library does not including floating point support for printf.