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Stm32f4 fprintf

Question asked by benussi.carlo on Oct 23, 2015
Latest reply on Oct 23, 2015 by Clive One
                                                   
           

Hello, I am using STM32F407 Discovery, and would like to send data to the computer without the USART cable (I am only using USB-MiniB cable).

           

So to view the voltage read by the ADC (of STM32F4) I use printf function, as follows:

           

int fputc(int c, FILE *stream)
            { return(ITM_SendChar(c));
            }

           

printf(...)

           

Since I need to read then the voltage values on the computer (by matlab), how can I access the debug serial viewer? Or how can I retarget the printf function to write data in a txt file?

           

I tried also to use fopen,fprintf but it is not working.

           

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