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NXPTM M522XX, KINETIS and i.MX RT / Trying to get uTasker to work with my Teensy 3.6 board
« on: April 16, 2017, 04:50:41 AM »
Hello,
I'm trying to get uTasker to work with my Teensy 3.6 board, and I'm having difficulty.
As a first step on my project, I'm attempting to get uTasker set up as a USB mass storage device, reading from the SD card on the teensy.
I think I've modified the uTasker app files correctly, I basically turned off everything USB, except for the USE_USB_MSD flag. I've also got the SDCARD_SUPPORT flag turned on. Aside from those changes, I haven't changed much in the uTasker app code.
I've been able to build uTasker in gcc, and produce a .hex file that I can load onto the teensy. I've also been able to get uTasker and the simulator up and running in Visual Studio 2012 Express.
I run the app in the simulator, and when I attempt to enumerate the usb devices, if I put breakpoints in the USB driver, it stops, and it appears to be returning reasonable values for the descriptors. It appears to be working there, from everything I can tell.
Now for the problem. When I load the hex image onto the teensy and reboot it, the first thing I noticed was that the teensy's led lights up, and stays lit. I didn't expect this, and thought it was odd, but I proceeded. Next No matter how many times I unload USB drivers, and plug/unplug the teensy, windows doesn't recognize it as a USB MSD device, in fact it doesn't seem to recognize it as a USB anything, until I hit the button on the teensy, and the teensy halfkay loader takes over, at which point Windows recognizes it as an HID device as usual.
I have no clue what I could be doing wrong. Is there a uTasker example that shows configuring it as a MSD using the SDCard, that I could maybe download, and compare to my settings? Or, does anyone have any tips on things to check etc?
Any assistance would be greatly appreciated.
Thanks,
Chris
I'm trying to get uTasker to work with my Teensy 3.6 board, and I'm having difficulty.
As a first step on my project, I'm attempting to get uTasker set up as a USB mass storage device, reading from the SD card on the teensy.
I think I've modified the uTasker app files correctly, I basically turned off everything USB, except for the USE_USB_MSD flag. I've also got the SDCARD_SUPPORT flag turned on. Aside from those changes, I haven't changed much in the uTasker app code.
I've been able to build uTasker in gcc, and produce a .hex file that I can load onto the teensy. I've also been able to get uTasker and the simulator up and running in Visual Studio 2012 Express.
I run the app in the simulator, and when I attempt to enumerate the usb devices, if I put breakpoints in the USB driver, it stops, and it appears to be returning reasonable values for the descriptors. It appears to be working there, from everything I can tell.
Now for the problem. When I load the hex image onto the teensy and reboot it, the first thing I noticed was that the teensy's led lights up, and stays lit. I didn't expect this, and thought it was odd, but I proceeded. Next No matter how many times I unload USB drivers, and plug/unplug the teensy, windows doesn't recognize it as a USB MSD device, in fact it doesn't seem to recognize it as a USB anything, until I hit the button on the teensy, and the teensy halfkay loader takes over, at which point Windows recognizes it as an HID device as usual.
I have no clue what I could be doing wrong. Is there a uTasker example that shows configuring it as a MSD using the SDCard, that I could maybe download, and compare to my settings? Or, does anyone have any tips on things to check etc?
Any assistance would be greatly appreciated.
Thanks,
Chris