printf() in IAR 9.20.2 doesn't work

[CKang.3]

I have been using prinf() function in IAR 9.10.1 without any issue.

 

 

Recently I upgraded to IAR 9.20.2 but the printf() didn't work any more.

I also contacted IAR and they said fputc() based printf is not supported by IAR 9.20 any more and recommended using __write() instead of fpuct().

I am looking for some example codes with __write() for printf in STM32L476 processor.

Can anyone help me out?

Thanks,

Chris

[Tesla DeLorean]

The function just writes a block of data to the UART, can't be that complicated to code. Look at how the GNU examples are architected. Or fish on Google

https://www.iar.com/knowledge/learn/programming/overriding-and-redirecting-library-modules-without-rebuilding-the-entire-library/