Unable to upload code to the Pixl.js running 2.18, disconnects while sending

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Gordon

Thanks! Ok, so that's one for Mediatek. @parasquid it'd be amazingly helpful if you could try the other adaptor - that would rule out a great deal of things!

@fanoush as far as I can tell from the initial post on https://forum.espruino.com/conversations/387281/ we get a NotSupportedError: GATT operation failed for unknown reason. from https://github.com/espruino/EspruinoTools/blob/master/core/serial_web_bluetooth.js#L226

And that function does trigger a disconnect - so it is possible that we could trap the error there, and then split the write up into 20 byte chunks.

It could maybe even set setMaxPacketLength(NORDIC_DEFAULT_TX_LENGTH) and change where setMaxPacketLength is called above to ensure it never tries to send >20 byte packets.

... but I'm hesitant to make changes here as I can't reproduce it. If you were willing to give it a try a PR would be awesome though.

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parasquid in reply to @Gordon

If you were willing to give it a try a PR would be awesome though.

If you're also able to deploy this to a test URL (so something like espruino.com/ide-mtu-test for example) I can try it out and see if it works without any configuration on my part.

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