Stm32f4 fprintf

[cbenussits]

Posted on October 23, 2015 at 18:03

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.

#fprintf-printf-putc-file

[Tesla DeLorean]

Posted on October 23, 2015 at 18:19

how can I access the debug serial viewer?

Copy-n-Paste?

[Tesla DeLorean]

Posted on October 23, 2015 at 18:25

https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Problem%20with%20ADC%20DMA%20and%20timer&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=381