Nucleo: F767ZI Can't find mistake: SPI1 does not clock anything - please rewiew STM32IDEProject

MRupp.11 · ‎2019-05-20

Hello all,

after trying several attemts and hint's i am still confused what's wrong with my configuration or Board.

Currently no slave is conected, i just wan't do display at least clock ans MOSI

Please have a look at the attached STM32Cube IDE Projekt.

Let me know, where i have made the mistakes.

Thanks in advance

Marc

T J · ‎2019-05-21

I looked in the Cube file.

NSSP mode ? Why do you want to pulse the nSS pin ?

nSS functionality in STM doesn't work very well, so we dont use it

We use the software nSS signal.

a Prescaler of 2 is too small, 54MHz seems too fast.

there is no software in that zip file.

no main.c ??

MRupp.11 · ‎2019-05-22

Hello TJ,

Main.c is found here in archive:\WIZ5500_SPI3_F7\Core\Src

i have attached the main.c for reference

Marc

T J · ‎2019-05-22

you would usually spi_Init before while(1){};

you only need to initialize once.

also you should move the deinit to below while(1){}

then you would get a scope to look at the wires, are you doing that ?

I dont see the nSS being software driven ...

MRupp.11 · ‎2019-05-22

Hello TJ,

i am currently at work, i will make the changes when i am back at home ;)

But i can take a acope for additional reference to.

I will report the results after that

MRupp.11 · ‎2019-05-22

Hi,

no changes at all: No output at the port pins.

SPI Result codes in code looks ok during Debug, but mo output.

To shorten this:

Does someone have a working SPI example for me, that was used / created by yourself on exactly this board.

And is it possible to provide this for reference.

Actually i don't have at least one reliably reference spI Project for this board.

Or:

Can someone simply test (no theretical discussion) my project on his nucleo board and agree that he has output on Pins or not.

Thanks Marc