Hello.
We are using the ECSPI2 in the i.mx8 m mini from the M4 core.
ECSPI2 is disabled in the device tree so that the M4 has full control.
The SPI is configured to transfer 5 bytes with the ECSPI_MasterTransferNonBlocking and then generate the RXFIFO Data Request Interrupt.
This works fine for some time but at some point the SPI Transfer hangs after sending 3 byte.
What could cause ECSPI to only transfer 3 byte?
Cheers Marcel
Solved! Go to Solution.
Which SDK are you using? Which board are you using?
Have you try other examples in the SDK and still have the issue?
Hi Jimmy
We are using SDK 2.11.0 with a custom board using the i.MX8M Mini.
I could fix the original issue by using the CMSIS implementation of the ECSPI.
But there i face an other issue, that i cannot use ecspi2 and ecspi3 simultaneously.
I used the cmsis_ecspi_int_loopback_transfer as starting point and implemented ecspi 3 accordingly. I can use the ecspi3 alone but not both together.
Either the ECSPI2_DriverIRQHandler or the ECSPI3_DriverIRQHandler is not triggered.
I added the NvicInit() and now it works on both spis.