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ADS1293EMV-CC2540DK: SPI communication (disable MSP430)

Alexandros Kogkas
Prodigy 60 points

Other Parts Discussed in Thread: ADS1293EVM, MSP430F5529, ADS1293, TIDA-00096

Hi,

I want to implement an SPI communication between ADS1293EVM (slave) and CC2540DK (master).

As far as I know, to achieve this I have to disable the MSP430F5529 of the ADS1293EVM.

Is there any hex file to do this (using MSP430 USB Firmware Upgrade Example 2.0)?

  • 0
    TI__Guru**** 223377 points
    Hello Alexandros,

    Well if you wanted to only access the ADS1293 part of the EVM board you could just erase the flash memory of the MSP430F5529, that way it would behave like a dormant slave device during SPI communication and would not pull on any lines to interrupt communication between the ADS1293 and CC2540DK. Looks like you could also remove JP3 to cut out the power supply to the F5529, further keeping it from interfering. If you want to use the ADS1293 with Bluetooth, might I suggest looking into TIDA 96?

    http://www.ti.com/tool/TIDA-00096

    We don't sell this TID, but it includes all of the design files necessary to build it yourself. Of course, if you already have the ADS1293EVM and CC2540DK boards at your disposal and don't want to waste funds ordering/populating another board, please reference my first suggestion. But it would still be a good idea to look at the TID for ideas.

    Regards,
    Ryan
  • 0 in reply to Ryan Brown1
    Prodigy 60 points

    Hi Ryan,

    removing JP3 works well.

    Also well worked compiling an empty main loop with Code Composer Studio, extracting the hex file and downloading it to the ADS1293EVM with Python Firmware Upgrader (only USB connection necessary).

    I'm aware of the TID you referred, but I have already the boards.

    Thank you for your reply.

  • 0 in reply to Alexandros Kogkas
    Prodigy 100 points
    Hello Alexandros,
    How did you put the code onto the MSP430 using Python Firmware Upgrader, with only a USB connection? It says USB VID:PID 2047:0200 not found (maybe device is not in BSL mode)? Please set the device in BSL mode and select file-> Rescan HID Bus...
  • 0 in reply to Samyukta Ramnath
    Prodigy 60 points
    Dear Samyukta,

    Perhaps this response is too late, but I'll leave it here for future use:
    To set the ADS1293EVM in BSL mode, you have to hold the reset button (I think SW2) while you're plugging the usb into the PC.
    Hope this helps.

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