i.MX RT Crossover MCUsのトピックRe: RT10150-EVK(B) LSPI_interrupt Example Not Working

RT10150-EVK(B) LSPI_interrupt Example Not Working

michaelsmorto — Thu, 29 Nov 2018 12:02:53 GMT

Hi. I have been trying to get the driver_example / LSPI_Interrupt example. It just keeps hanging at,:

/******************Wait for master and slave transfer completed.******************/
    while ((!isSlaveTransferCompleted) || (!isMasterTransferCompleted))
    {
    }

Not sure where to go from here on this one. I tried several things but no luck.

regards

Mike

Re: RT10150-EVK(B) LSPI_interrupt Example Not Working

michaelsmorto — Thu, 29 Nov 2018 23:09:20 GMT

Did some more debugging and it appears that the interrupts may not be firing. Not getting to the callbacks - I did see a note about using intmux but I can not seem to find anything on that in the spec or in the examples. Theres is also no intmux.h file in the examples to use as a guide either.

Re: RT10150-EVK(B) LSPI_interrupt Example Not Working

art — Fri, 30 Nov 2018 10:59:56 GMT

To make me able to accurately study the case, please provide some more information.

Can you see any activity on the LPSPI signals? What exactly interconnections have you made on the board? Can you trace the code and define the exact point the code execution sticks up at? Please specify.

Also, i.MX RT1050 doesn't have any intmux module, all interrupts from peripherals directly go to NVIC. So, to be served, corresponding interrupt should be enabled in both peripheral module and NVIC.

Have a great day,
Artur

Re: RT10150-EVK(B) LSPI_interrupt Example Not Working

michaelsmorto — Fri, 30 Nov 2018 15:42:56 GMT

Added a bunch of additional debugs statements and it gets stuck in the following loop:

while ((!isSlaveTransferCompleted) || (!isMasterTransferCompleted))

I do see the master irq firing by adding a few debug statements, but never see the slave. i.e.:

   ENTERED LSPI_MASTER_IRQHandler
   EXIT LSPI_MASTER_IRQHandler
   ENTERED LSPI_MASTER_IRQHandler
   EXIT LSPI_MASTER_IRQHandler
   ENTERED LSPI_MASTER_IRQHandler
   EXIT LSPI_MASTER_IRQHandler

Adding a couple of extra debug statements in the while statement I see that master is completed but slave transfer never completes:

isMasterTransferCompleted: 1
isSlaveTransferCompleted: 0
isMasterTransferCompleted: 1
isSlaveTransferCompleted: 0

As for connections I used what was specified in the readme:
MASTER           connect to           SLAVE
Pin Name   Board Location     Pin Name    Board Location
SOUT       J24-4 (D11) SIN       J24-2 (D9)
SIN J24-5 (D12)    SOUT    J24-9 (D14)
SCK    J24-6 (D13)    SCK       J24-10 (D15)
PCS0    J24-3 (D10) PCS0 J24-1 (D8)

I did re-do the wiring a couple of times but had same results.

Hope this is enough.

Thanks for the help

Mike

Re: RT10150-EVK(B) LSPI_interrupt Example Not Working

michaelsmorto — Tue, 04 Dec 2018 12:48:52 GMT

No resolution to this issue yet ?

Re: RT10150-EVK(B) LSPI_interrupt Example Not Working

michaelsmorto — Wed, 05 Dec 2018 02:18:50 GMT

[RESOVLED] Have jumper the locations on the bottom of the board to pins 10, 11, 12, 13. Don't know why this wasn't done by default.