GPIO Test Tool unable to see any pins...

CompuDoc
CompuDoc New Member Posts: 7 ✭
edited October 7 in UP 710S Windows

I have the new "710S" which is actually an UP-TWL02.
I've successfully installed the latest Up Framework (2026-08-18) (along with VS 2022, MS C++ for x64 and x86), MS SDK 9.0.318 x64, MS .NET SDK 4.7.2, and MS .NET Runtime 8.0.31 x64).

When I build and run the UpNetGPIOTestTool (along with a few extra debugging lines), I see this:
AAEON Technology Inc.
Board Name: UP-TWL02
BIOS Ver: UPTWBM11
Firmware Ver:0

Controller HashCode:-365808231
Controller Struct:Windows.Devices.Gpio.GpioController
{"PinCount":0}

I do notice that the HashCode changes each time I run it, so I'm not sure what exactly that is telling me. But no matter what, I get a PinCount of 0.

I've tried this both with and without the FinTek Device Driver installed and it didn't make a difference.

I tried compiling the UpGIOTestTool but it fails with this error about missing System.Private.CoreLib:

I have run the pre-compiled I2cTestTool and that works perfectly.

Anyone get the GPIO to work on a TWL02? I urgently need to get this to work and greatly appreciate any help.

...Larry

· Share on Facebook

Best Answer

  • HarryChiu
    HarryChiu New Member Posts: 235 ✭✭✭
    edited October 12 Answer ✓

    Hi @CompuDoc

    Due to its different architecture, this board does not use upframework for GPIO control; instead, it uses the fintek tool.

    All GPIO pins support interrupts. The following example demonstrates how to configure GPIO00.

    Logic Device = LDN09h

    1. Set the IRQ channel to 03h (IRQ3).

    2. Configure GPIO00 as an input.

    1. GPIO00 IRQ enable

    1. Configure GPIO00 to detect either a rising edge or a falling edge.

    0: Rising edge
    1: Falling edge

    Please refer to the information above and give it a try.

    Best Regards,
    Harry Chiu

    · Share on Facebook

Answers

  • CompuDoc
    CompuDoc New Member Posts: 7 ✭

    I should add that the FitGpio.exe tool does work (when the FinTek device driver is installed), so it's not a hardware or BIOS problem...

    ...Larry
    · Share on Facebook
  • CompuDoc
    CompuDoc New Member Posts: 7 ✭

    And for anyone interested, the FinTek SDK (which only offers read and write for the GPIO) uses 242 (0xF2) as the index for the GPIO pins on the LPC1714 chip.
    But I'd still love to use the UpFramework for the GPIO, especially if it enables using a pin as an interrupt (instead of me polling every few milliseconds...). Looking for any advice, thank you!

    · Share on Facebook
  • HarryChiu
    HarryChiu New Member Posts: 235 ✭✭✭

    Hi @CompuDoc

    Due to the different GPIO architecture, the functionality you require cannot be implemented using upframework.

    Currently, Fintek also cannot do it; it requires separate development. Could you please provide your OS image?

    I will request Fintek's assistance, but I cannot determine the timeline at this time.

    Best Regards,
    Harry Chiu

    · Share on Facebook
  • CompuDoc
    CompuDoc New Member Posts: 7 ✭
    edited November 3

    @HarryChiu - Thank you for your reply. I have been working on this and starting to come to the same conclusion that I would actually need to write a device driver myself to link the IRQ to an Interrupt Service Routine (ISR). I have an UP-TWL02 with Bios UPTWBM11 running Windows 11 IoT Enterprise LTSC V24H2 OS Build 26100.9457. I am developing in .NET C#. I have I2C working using the UpFramework and I am able to use the Fintek driver to R/W from the GPIO pins (and all of the other addresses in Device SIO2).

    Being able to respond to an interrupt from a pin change would indeed be very helpful to me and the community so I do appreciate your requesting Fintek's assistance.

    ...Larry

    · Share on Facebook

Categories

Privacy Policy