robert-hh 8e54225140 mimxrt: Format the firmware image to match the new teensy loader.
The new teensy loader keeps the file system under certain conditions:
- The file size is properly set in the file header.
- The header version is 4.3

These changes are implemented here, requiring a backport of
fsl_flexspi_nor_boot.c.  There is still a problem with the command line
version of the teensy loader, which fails on the first attempt.  At the
second attempt it works.  The GUI version of the teensy loader is fine.
2022-09-13 18:35:48 +10:00
..
2021-05-26 00:12:42 +10:00
2021-05-26 00:12:42 +10:00
2022-01-27 17:05:34 +11:00

Port of MicroPython to NXP iMX RT 10xx

Currently supports Teensy 4.0, Teensy 4.1, and the MIMXRT1010_EVK, MIMXRT1020_EVK, MIMXRT1050_EVK, MIMXRT1060_EVK and MIMXRT1064_EVK boards.

Features:

  • REPL over USB VCP
  • machine.ADC
  • machine.I2C
  • machine.LED
  • machine.Pin
  • machine.PWM
  • machine.RTC
  • machine.SDCard
  • machine.SPI
  • machine.Signal
  • machine.SoftI2C
  • machine.SoftSPI
  • machine.Timer
  • machine.UART
  • LFS2 file system at the internal Flash
  • SDCard support (not on MIMXRT1010_EVK)
  • Ethernet (not on Teensy 4.0 and MIMXRT1010_EVK)

Known issues:

TODO:

  • More peripherals (Counter, I2S, CAN, etc)
  • More Python options