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CC2540 as SPI slave doesn't work with USB Dongle

Joe Di Maggio
Prodigy 120 points
Other Parts Discussed in Thread: CC2540, CC2530, Z-STACK

Hi,

in my project I'm trying to send Data from an ARM uController over BLE to the PC.

My ARM uController works as SPI-Master and the CC2540 as the slave. That works fine!

But the CC2540 only goes to the SPI-ISR when it is not connected with the PC, what's the problem?

The SPI-ISR looks like that:

HAL_ISR_FUNCTION( spiPort0Isr, URX0_VECTOR )
{
    ...
}

Thanks for the Answer!

  • 0
    Prodigy 120 points

    I tried several interrupt priority for the spi, but nothing changed.

  • 0 in reply to Joe Di Maggio
    Prodigy 120 points

    The ARM-controller is sending a packet of 108 bytes, but the CC2540 receives only 30-50 of them if connected. So it seems to be a better solution to use SPI with DMA.

    In the Z-Stack of the CC2530 I saw an SPI-Module with DMA, can I integrate this module in my project or is there any sample app with SPI-DMA for the CC2540?

    Or is it easier to modify the UART-DMA routines for the CC2540 to work with SPI?

  • 0 in reply to Joe Di Maggio
    Prodigy 120 points

    That's a "support forum", but I don't notice any support. Maybe it would be better to use another hardware solution from the competitors

  • 0 in reply to Joe Di Maggio
    TI__Guru 57865 points

    Hi Joe,

    We do monitor every post in the e2e, although sometimes we simply might not have the answer. I do not know what your issue might be, since I have not worked with SPI that much. 

    Joe Di Maggio said:
    In the Z-Stack of the CC2530 I saw an SPI-Module with DMA, can I integrate this module in my project or is there any sample app with SPI-DMA for the CC2540?

    Currently (BLEv1.2), there are no software support for SPI in the stack, but I believe you could port the SPI module from Z.stack without too much work. 

    Joe Di Maggio said:
    Or is it easier to modify the UART-DMA routines for the CC2540 to work with SPI?

    I believe you should go with your first option then maybe correlate the implementation to the UART DMA.

    Please share your progress. 

    Best Regards.

  • 0 in reply to J Lindh
    Intellectual 430 points

    Good morning

    i am using cc2540 for remote control and when i received my data release and press ,in my dongle i compte the time between the release and press in order to know  if there is repeat or non  but when I pressed fastly my remot control plant ,

    these is the frame   ,i want to know where is the  problem:

    please  help me

    thank you

  • 0 in reply to abderrahmane habet
    Prodigy 120 points

    thank to this thread:

    http://e2e.ti.com/support/low_power_rf/f/538/t/105859.aspx#373282

    I finally received all interrupts even in connected mode, I just turned off the power management.

    So I can go on with the project, the next big thing to solve is if it's possible to combine the central and peripheral project. It would be great to switch betwen this two modes with a command, but that's maybe another thread I should open.

    Greetings

  • 0 in reply to Joe Di Maggio
    Intellectual 490 points

    Joe Di Maggio said:

    It would be great to switch betwen this two modes with a command, but that's maybe another thread I should open.

    There is a project out there that can switch between central and peripheral, although it currently uses one of the push buttons to do so. Take a look at it and you may be able to integrate it to your project.

    http://processors.wiki.ti.com/index.php/MasterSlaveSwitch