About LBaum.3

LBaum.3 · 2021-06-08

Hello ST community,I use a STM32F767ZI-Nucleo. There is a timer generating interrupts every 20ms. If a timer interrupt occurs I use HAL_SPI_Transmit_DMA to send some data. I monitor the return value of this function and after some time of sending wit...

LBaum.3 · 2021-05-14

Hi ST community,I am interrested in using the STM32F767-Nucleo board for SPI communication. My system is as follows. I have one STM32F767-Nucleo board which is my SPI slave and a Raspberry Pi which acts as SPI master device. The Raspi should read dat...

LBaum.3 · 2021-06-22

Yes, I changed the variables to global ones.I noticed that the failure is at the slave side and there I don't use any data before it's actually there. So this could not be the reason for the fault. As @Community member mentioned the errata sheet say...

LBaum.3 · 2021-06-17

I investigated the HAL_SPI_Transmit_DMA function and i determined that it also checks the BSY bit in the SPI status register. So in my opinion the BSY Bit is the reason for the failure.The question I am facing now is how can I accomplish that the sen...

LBaum.3 · 2021-06-14

Ok thanks. So I should wait for the end of transmission before I use bufferByteNumber build bufferByteNumber16?I'll change the variables to global and then try it again.bufferByteNumber at the slave side is 10.

LBaum.3 · 2021-06-14

Code at the master:

LBaum.3 · 2021-06-14

Code at the slave:

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Why SPI returns busy after a while of sending correctly?

unexpected GPIO behavior

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Re: Why SPI returns busy after a while of sending correctly?

Re: Why SPI returns busy after a while of sending correctly?