ItsyBitsy M4 Express and Arduino

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AlainB
 
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ItsyBitsy M4 Express and Arduino

Post by AlainB »

Hello,

I'm trying to use my ItsyBitsy M4 Express with Arduino IDE and ArduinoCLI, as I routinely do with Adafruit Feather M0 Express boards, but I cannot get the board installed: I have Adafruit SAMD Boards v1.7.4 installed (which appears to be the latest one) which includes the ItsyBitsy M0 and ItsyBitsy M4, but not the ItsyBitsy M4 *Express*.

Am I missing anything? Or should it work with the ItsyBitsy M4 configuration (it does not: upload fails with "No device found on cu.usbmodem101
Error during Upload: uploading error: uploading error: exit status 1").

Retrieving the board information, I get: BN: Unknown board, VID: 239A, PID: 802C, SN: upload a sketch to get it.

Additional question: is viewtopic.php?f=62&t=165228 relevant for recently purchased ItsyBity M4 express ?

Thanks for your support,
A. Baudhuin

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dastels
 
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Re: ItsyBitsy M4 Express and Arduino

Post by dastels »

It's worth verifying that your board has the latest bootloader, and upgrade it if not.

Just to verify, do you have the Arduino SAMD board support package installed as well? You should install it if not.

Dave

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AlainB
 
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Re: ItsyBitsy M4 Express and Arduino

Post by AlainB »

Thanks for you prompt reply!

Yes, I have Arduino SAMD v1.6.20 installed, and I see a large list of (Arduino and) Adafruit SAMD boards: ItsyBitsy M4 Express is just not in the list (nor is ItsyBitsy M0 Express by the way). (See complete
ListOfInstalledSAMD_Boards.jpg
ListOfInstalledSAMD_Boards.jpg (265.88 KiB) Viewed 135 times
list in attachement). Everything worked fine for years with Feather M0 Express.

Alain.

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dastels
 
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Re: ItsyBitsy M4 Express and Arduino

Post by dastels »

Did you make sure everything (board support mostly) is up to date?

Dave

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AlainB
 
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Re: ItsyBitsy M4 Express and Arduino

Post by AlainB »

As far as I can check, everything is up-to-date:
- Arduino SAMD boards (32-bits ARM Cortex-M0) v1.6.20
- Adafruit SAMD board v1.7.4
(Arduino AVR boards v1.8.3)
Already reinstalled Adafruit SAMD after upgrade of Arduino SAMD, just in case (no effect).

I upgraded the boards UF2 boatloader, as per your instructions, to version 3.13.0 (update-bootloader-itsybitsy_m4-v3.13.0.uf2, was previous v2.0.0), but of course that wasn't expected to fix the issue: the ItsyBitsy M4 Express should appear in the list of boards known by the IDE, even without any board connected.

I'm afraid I've exhausted my ideas... Any suggestion is welcome!

Alain

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dastels
 
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Re: ItsyBitsy M4 Express and Arduino

Post by dastels »

I suspect that since there's just one ItsyBitsy board using the M4... "ItsyBitsy M4" is the "M4 Express" board.

Does resetting or double-resetting have any effect?

Dave

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AlainB
 
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Re: ItsyBitsy M4 Express and Arduino

Post by AlainB »

Oh, so ItsyBitsy M0 express would be the same as ItsyBitsy M0, and ItsyBitsy M4 express the same as ItsyBitsy M4 ?
That would explain the absence of those boards in the list (I assumed it was like Feather M0 and Feather MO Express) !

Back to testing then:
- My board definitely says ItsyBisty M4 Express on the upper-face.
- Retrieving board information through the IDE returns BN: Adafruit ItsyBitsy M4 (SAMD51), VID: 239A, PID: 002B, SN: 5C4691185337543239202020FF184340. No "express" there....
- ... and a couple of single and double resetting did the trick!

Everything all right, thanks for your help !

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