MicroPython Forum (Archive)

or be included for the MIMXRT10xx_EVK boards

I am inconclusive about that. Such a driver for an external peripheral should not be a part of the mimxrt repo in my point of view.

Nice work. I can definitely see that you tweaked it to your needs

I have a question about your A/B firmware setup. Do you use firmware which is compiled for RAM only or do you generate two images, linked for the respective locations or have you played around with position independent code?

Hi Raul, glad that you like the performance. I assume this results from commit "mimxrt: Optimize the runtime speed" ? This commit definitely increased the performance of MicroPython code on MIMXRT by placing parser, runtime, GC etc. in the tightly coupled RAM of the controller. Robert-hh did great w...

Mhmh that is really strange.

I have Ubuntu 20.04 which is working fine for me but I mostly use my RaspberryPi which is part of my development setup. I had different OS releases running on the pi but never had any issues with the serial connection.

How do you connect to the serial port (115200 baud is ok) - via putty or screen etc. ?
Does it fail to establish the serial connection at all?

If you have a connection could you trie CTRL-D to issue a soft reset?

Hi Mike,

I can not tell you the time with debugger from the top of my head but with my bootloader it is around 6s.

With debugger and just downloading the firmware it is faster. I would say around 3-4s.

I hope that is fast enough for you

For me that is totally fine. You can work with a Teensy if you like. The only disadvantage that I see is the lack of a proper debugger. Roberthh and myself have most of the other boards which we support with the mimxrt port. So once you are finished we can aid you with testing. If you need any help ...

As far as I know no one is currently working on it. Your support is highly appreciated.

Hi,

Not yet. But it is in our backlog.

Thanks for that script. If you like you can check out the “alpha” release of my DFU bootloader in my repository https://github.com/alphaFred/micropython/tree/mimxrt/bootloader No need to touch the board since it works over the device USB port. Just start an upload via dfu-tool and the board will aut...