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Need a hand on a small project with Maaxboard RT

samr2

Good Day,

I would like an expert to give me a hand developing a small Bare-Metal R&D project with following definitions (We will agree and I'll pay for that):

I need to have a SPI 24 bits ADC and a Small SPI touch display (ILI9341 Controller Chip for example or equivalent) connected to and controlled by a MaaxboardRT (only through CM4).

CM4 should be able to receive analog input from external ADC and take care of display simultaneously.

The project has to be developed in MCUXpresso and defined as a Multicore Project.

The result of this project will be a MCUXpresso multicore project code and a wiring diagram up and running.

Please let me know if you are interested and how much it will cost you doing that or any other questions you may have.

Thanks in advance,


Cheers,



  

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  • 0

    Hi samr2,

    I have started working on MaaXBoard-RT recently.
    I am just a regular user but I try to do my best to help here in forum (with current and collected experience).

    I want to use SPI as well (near soon). Focus is a "network SPI adapter".

    I can (and have started to) share experience in forum. If I can really help on all your project topics...?
    (not sure, due to lack of HW needed and a slightly different focus for my project(s))

    Let's see:
    If SPI will work (and I need, not decided yet if CM7 or CM4 should do), it might help you for your ADC and your touch display,
    The challenge would be: to have the same external hardware as you are using.

    Personally, I would break down your project into "work items".
    I would also try to start with SDK examples.

    So:

    • bring-up dual-core system: CM7 and CM4, "talking to each other" (I would consider the CM7 as the master, CM4 as a slave) - RPC, messages, synchronization
      BTW: why CM4 only? Why not CM7 (only)?
    • implement SPI (in general), on CM7, or CM4 (but maybe CM7 triggers to do "SPI transactions" done on CM4) - I need as well and maybe I have it working in few days
    • connect your SPI touch display and see some messages, graphics there: do you want to use a "graphics wizard" (tool) or hard coded display images?
      Also: "touch"? is all via SPI? Or is the touch control a different channel, e.g. I2C, a second SPI?
    • OK, bare-metal. I prefer personally to use an RTOS, e.g. FreeRTOS on CM7 - all my examples will use FreeRTOS
    • any other interfaces needed?
      e.g. Debug UART, UART or even ETH (network) to a host PC... Or all just controlled by user via touch display only?

    If you have already the hardware which do you want to connect (the DAC board, the display board) - please provide a bit more info what and where to get
    (maybe I can order and try myself).

    If you need a very simple "bare-metal" starting project (but without SPI, without display, just toggle the three LEDs):

    tjaekel/MaaXBoard-RT_shell_cm7: MaaXBoard-RT Shell with command to toggle LEDs (all three) (github.com)

    Good luck and best regards

    (I could imagine to "help", if you pay for the HW needed)

  • 0 in reply to tjaekel

    Hi  
    Thanks for your response,
    yes CM4 and CM7 should talk to each other. I want to keep CM7 for another heavy process, something.
    Bare-metal because it really needs a real-time process on CM7, I'm not sure if we could keep CM4 on FreeRTOS separately.
    I general CM4 should manage ADC / display/ Bluetooth (a2dp/BLE) and give some data to CM7.



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