[riot-users] Issues with SPI loop back test for STM32 Nucleo F401RE board

Peter Kietzmann peter.kietzmann at haw-hamburg.de
Thu Mar 16 19:51:47 CET 2017

Hi Niharika,

do you have an other stm32f4 board at hand (e.g. stm32f4discovery) to 
confirm it's the same issue there? A scope or logic analyzer would be 
useful to check if CLK and MOSI are running.

The general setups seems reasonable in general. In case the issue 
persists please add a note to this issue where we collect leftovers from 
recent SPI reworks in RIOT.



Am 07.03.2017 um 06:42 schrieb Niharika Sonti:
> Hi,
> I have an issue while running the peripheral_spi test example with the
> STM32F401 Nucelo board. I have made the hardware connections as per the
> peripheral configuration file and tried to run an SPI loopback test.
> However, I receive only 0x00 instead of any character that I transmit on
> the MOSI pin.
> The connections that I have made are:
> MOSI pin (Port A_7) connected to the MISO pin (Port A_6)
> Can someone help me out with this issue?
> Thanks,
> Niharika.
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Peter Kietzmann

Hamburg University of Applied Sciences
Dept. Informatik, Internet Technologies Group
Berliner Tor 7, 20099 Hamburg, Germany
Fon: +49-40-42875-8426
Web: http://www.haw-hamburg.de/inet

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