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RTOS/LAUNCHCC3220MODASF: To use SD card and NWP

Nishi Khetwal
Prodigy 80 points

Part Number: LAUNCHCC3220MODASF

Tool/software: TI-RTOS

Hi

I am using CC3220MODASF module.

Is there a way to use NWP and SD card in sdio mode together.

  • 0
    Guru 39650 points

    Hi,

    What you want to say to "use together"? NWP have own storage in sFlash (SPI flash) and cannot use SD Card. SD card is under control of application processor (your code).

    Jan

  • 0 in reply to Hnz
    TI__Mastermind 38980 points
    Hi Nishi,

    Jan is correct, you cannot directly interface with an SD card from the NWP. You will have to handle this in your application code. You can check out the SD driver example in the examples/*/*/drivers/sdraw folder in the SDK.

    Best regards,
    Sarah
  • 0 in reply to Hnz
    Prodigy 80 points

    Hi Hnz,

    Actually I am working in sys config project abd there it is showing conflict in the pins of NWP and SD card as both have same pins.Can you provide me with some solution as I need to use both together in one code. 

  • 0 in reply to Nishi Khetwal
    Guru 79905 points
    Hi,

    Please provide screenshot. It may to be some bug in sysconfig. Because spins FLASH_SPI_* and LSPI_* pins are reserved for NWP usage and cannot be used for SD card connection.

    Jan
  • 0 in reply to Nishi Khetwal
    TI__Mastermind 38980 points

    Hi Nishi,

    This is a known issue in SysConfig that will be fixed in future versions. The host driver requires the structures created by adding a SPI peripheral in SysConfig, but this currently reserves the external SPI pins that you may need for something else.

    For now, you can switch to device mode to try to work around this conflict. Please see this thread about switching to device mode: e2e.ti.com/.../796985

    You can also use a non-SysConfig example and assign pins directly in the CC3220x_LAUNCHXL files or using the PinMux tool.

    Best regards,
    Sarah