NRF52832 SPIS handler blocked with BLE

[Romain]

Hi,

I use SDK v13.0.0 with SD S132 and to debug my application I use UART0 on Putty.

When I use SPIS (0) (no BLE and no softdevice) alone I perform all functionalities I have created. When I use BLE + softdevice (no SPIS) I can perform all functionalities for it.

But when I try to perform SPIS and BLE I have the 2 following problems:
  1 - the application still blocked in my SPIS handler
  2 - the first byte sent on my SPI is not the one expected (before initialization 0xFF ok (0x00 when SPIS is used by the CPU) and after I sent by default 0x4 but my target sent 0xFC.

For the SPIS driver I'm started from the example peripheral/spis.

Thank you for your help.

Best regards,

Romain

[Edvin]

Hello,

It sounds like you have some IRQ priority collisions. What IRQ priority do you use on your SPI?

[Romain]

Hi,

I use the IRQ priority 7. But if I change to another (6) I have the same problem.

[Romain]

Hi, my problem is the same as the example code: when in SPIS interrupt handler we call the function used to "reset" (or update if you prefer) DMA (RX / TX buffers) the ECU tries to enter again in interrupt handler but the dedicated flag is clear before exit the first. I execute my SPI notification in background with a flag setting by SPIS handler

[Edvin]

Hello,
Would it be possible to send a project that can reproduce this, so that I can test it and see if I can find a solution? Or do you mean that you found a fix for the issue?

Best regards,

Edvin