Commit Graph

19 Commits

Author SHA1 Message Date
robert-hh 7417c6ac91 mimxrt/machine_pin: Implement pin.irq() functionality. 2021-06-16 01:42:10 +10:00
robert-hh 689476c576 mimxrt/machine_uart: Add the UART class to the machine module.
The implementation uses the LPUARTx devices.  Up to 8 UARTs can be used,
given that the pins are accessible.  E.g. 8 on Teensy 4.1, 5 on
MIMXRT1020_EVK.

For Tennsy 4.0 and 4.1 the UART numbers are as printed on the pinout 1..N.
The MIMXRT10xx-EVK boards have only one UART named, which gets the number
1.  All other UART are assigned to different Pins:

MIMXRT1010-EVK:
    D0/D1   UART 1
    D6/D7   UART 2
    A0/D4   UART 3

MIMXRT1020-EVK:
    D0/D1   UART 1
    D6/D9   UART 2
    D10/D12 UART 3
    D14/D15 UART 4
    A0/A1   UART 5

MIMXRT1050-EVK, MIMXRT1060-EVK, MIMXRT1064-EVK:
    D0/D1   UART 1
    D7/D6   UART 2
    D8/D9   UART 3
    A1/A0   UART 4
2021-06-16 01:21:15 +10:00
robert-hh 53fea8598e mimxrt/boards: Add board configuration files for Teensy 4.1.
These are at the moment more or less identical to the Teensy 4.0 files,
except for the pins.csv file and the flash size.
2021-06-04 01:00:39 +10:00
Philipp Ebensberger b8c65b174f mimxrt/machine_adc: Add the ADC class to the machine module.
This adds the machine.ADC class with the read_u16() method.  make-pins.py
and supporting files are updated to generate ADC information.
2021-06-04 00:51:58 +10:00
robert-hh bbdc98f72e mimxrt: Enable many Python and some extmod features.
Besides Python features this includes the extmod modules which make use of
the Pin module, especially machine.softSPI, machine.SoftI2C and onewire.
2021-06-04 00:38:18 +10:00
robert-hh a40e1473dc mimxrt: Add floating point support.
Since not all boards support double fp, all board specific .mk files are
affected too.
2021-06-04 00:37:22 +10:00
robert-hh 745b4319a2 mimxrt/boards/TEENSY40: Re-create the flash FS after deploy.
This is required since the Teensy Halfkay loader attempts to erase all of
the flash but fails to do so, at least in my tests.  Formatting brings it
back to a known state.
2021-06-01 23:52:45 +10:00
robert-hh dfd4324eb1 mimxrt: Add flash storage support with VFS and littlefs filesystem.
This commit adds full support for a filesystem on all boards, with a block
device object mimxrt.Flash() and uos.VfsLfs2 enabled.

Main changes are:
- Refactoring of linker scripts to accomodate reserved area for VFS.  VFS
  will take up most of the available flash. 1M is reserved for code.  9K is
  reserved for flash configuration, interrupts, etc.
- Addition of _boot.py with filesystem init code, called from main.c.
- Definition of the mimxrt module with a Flash class in modmimxrt.[ch].
- Implementation of a flash driver class in mimxrt_flash.c.  All flashing
  related functions are stored in ITCM RAM.
- Addition of the uos module with filesystem functions.
- Implementation of uos.urandom() for the sake of completeness of the uos
  module.

It uses sample code from CircuitPython supplied under MIT license, which
uses the NXP SDK example code.

Done in collaboration with Philipp Ebensberger aka @alphaFred who
contributed the essential part to enable writing to flash while code is
executing, among other things.
2021-06-01 23:42:57 +10:00
robert-hh c303b15f10 mimxrt: Enable frozen modules. 2021-06-01 22:57:09 +10:00
Philipp Ebensberger ff5d39529c mimxrt: Implement machine.Pin class.
- modified pin type from pin_obj_t to machine_pin_obj_t
- created machine_pin.c
- implemented basic version of make-pins.py to genertate pins.c/.h files
  automatically; the only alternate function currently supported is GPIO
- added af.csv files for all supported MCUs
- replaced pins.c/pins.h files with pin.csv for all boards
- implemented on/off/high/low/value/init methods
- Implemented IN/OUT/OPEN_DRAIN modes
- modified LDFLAGS for DEBUG build to get usefull .elf file for debugging

Signed-off-by: Philipp Ebensberger
2021-05-26 00:12:42 +10:00
svetelna 23ce25a7c3 mimxrt/boards: Add MIMXRT1050_EVK board, based on MIMXRT1060_EVK. 2021-03-11 16:42:38 +11:00
Albort Xue 5f50568b1f mimxrt/boards: Add MIMXRT1064_EVK board. 2020-09-09 00:06:33 +10:00
Albort Xue 05e5d411b5 mimxrt/boards: Set __heap_size__ to 0 in MIMXRT1011.ld.
Do not use the traditional C heap in order to save memory, because the
traditional C heap is unused in MicroPython.
2020-06-10 22:49:26 +10:00
Philipp Ebensberger 29e258611a mimxrt/boards: Integrate support for MIMXRT1020_EVK board. 2020-06-09 19:04:23 +10:00
Albort Xue e0d539f79d mimxrt/boards: Enable LED class for MIMXRT1060_EVK board. 2020-06-09 18:51:08 +10:00
Philipp Ebensberger 02cc4462b7 mimxrt: Add initial impl of machine.LED class, and basic pin support.
This commit implements an LED class with rudimentary parts of a pin C API
to support it.  The LED class does not yet support setting an intensity.

This LED class is put in the machine module for the time being, until a
better place is found.

One LED is supported on TEENSY40 and MIMXRT1010_EVK boards.
2020-06-05 11:47:48 +10:00
Albort Xue b3bc9808f2 mimxrt/boards: Add MIMXRT1060_EVK board. 2020-05-27 16:49:52 +10:00
Jim Mussared 7eea0d8b6c mimxrt: Add MIMXRT1010 board. 2020-03-11 15:36:27 +11:00
Jim Mussared f46782dde9 mimxrt: Add new, minimal port to NXP i.MX RT series CPUs.
This is an extremely minimal port to the NXP i.MX RT, in the style of the
SAMD port  It's largely based on the TinyUSB mimxrt implementation, using
the NXP SDK.  It currently supports the Teensy 4.0 board with a REPL over
the USB-VCP interface.

This commit also adds the NXP SDK submodule (also from TinyUSB) to
lib/nxp_driver.

Note: if you already have the tinyusb submodule initialized recursively you
will need to run the following as the tinyusb sub-submodules have been
rearranged (upstream):

    git submodule deinit lib/tinyusb
    rm -rf .git/modules/lib/tinyusb
    git submodule update --init lib/tinyusb
2020-03-11 15:34:13 +11:00