Commit Graph

17 Commits

Author SHA1 Message Date
robert-hh
5d473d3093 mimxrt/mphalport: Add a timeout to mp_hal_stdout_tx_strn().
If USB CDC is connected and the board sends data, but the host does not
receive the data, the device locks up.  This is fixed in this commit by
having a timeout of 500ms, after which time the transmission is skipped.
2022-11-09 11:16:25 +11:00
robert-hh
65fa7fd8bb mimxrt/machine_timer: Use soft-timer implementation for machine.Timer.
This releases the hardware timers for other tasks, which need a higher
resolution and faster response.  And it is less port-specific code.
2022-10-27 14:09:29 +11:00
robert-hh
74e8db0ed1 mimxrt: Refactor the reading of the machine id.
The ID is read in a single function and used for:
- machine.unique_id()
- Ethernet MAC addresses.
- ...

That facilitates use of other MCU using a different access method for
the ID (e.g. i.MX RT1176).
2021-12-14 08:07:52 +01:00
robert-hh
bbe25f4704 mimxrt: Support selection of PHY type and address.
Useful for boards without a PHY interface, where that has to be
attached. Like the Seed ARCH MIX board or Vision SOM. Phy drivers
supported so far are:

- KSZ8081
- DP83825
- LAN8720

More to come. Usage e.g.:
lan = LAN(phy_type=LAN.PHY_LAN8720, phy_addr=1)

The default values are those set in mpconfigboard.h.
2021-12-14 08:07:52 +01:00
robert-hh
7d7d29dbe2 mimxrt: Fix mp_hal_quiet_timing_enter()/exit() so timer still runs.
The initial code disabled IRQs, which caused the us-ticks timer to stop.
The change here changes the priotity level, such that the timer still runs.
2021-11-16 23:20:06 +11:00
robert-hh
9f6604eb27 mimxrt: Enable the platform module. 2021-10-25 23:54:52 +11:00
robert-hh
99221cd118 mimxrt: Fix cycle counter for time.ticks_cpu() and machine.bitstream().
Prior to this commit mp_hal_ticks_cpu() was not started properly.  It only
started when the code was executed with a debugger attached, except for the
Teensy (i.MXRT1062) boards.  As an additional fix, the CYYCNT timer is now
started at boot time.

Also rename mp_hal_ticks_cpu_init() to mp_hal_ticks_cpu_enable().
2021-10-25 15:50:44 +11:00
robert-hh
1866ed7e2e mimxrt/eth: Add LAN support and integrate the network module.
This commit implements 10/100 Mbit Ethernet support in the mimxrt port.

The following boards are configured without ETH network:
- MIMXRT1010_EVK
- Teensy 4.0

The following boards are configured with ETH network:
- MIMXRT1020_EVK
- MIMXRT1050_EVK
- MIMXRT1060_EVK
- MIMXRT1064_EVK
- Teensy 4.1

Ethernet support tested with TEENSY 4.1, MIMRTX1020_EVK and MIMXRT1050_EVK.
Build tested with Teensy 4.0 and MIMXRT1010_EVK to be still working.
Compiles and builds properly for MIMXRT1060_EVK and MIMXRT1064_EVK, but not
tested lacking suitable boards.

Tested functions are:
- ping works bothway
- simple UDP transfer works bothway
- ntptime works
- the ftp server works
- secure socker works
- telnet and webrepl works

The MAC address is 0x02 plus 5 bytes from the manifacturing info field,
which can be considered as unique per device.

Some boards do not wire the RESET and INT pin of the PHY transceiver.  For
operation, these are not required.  If they are defined, they will be used.
2021-10-25 15:14:26 +11:00
robert-hh
61b7c098b9 mimxrt/machine_bitstream: Add bitstream function to machine module.
Following the code example for ESP32 of Jim Mussard.

As a side effect:
- mp_hal_ticks_cpu() was implemented,
- mp_hal_get_cpu_freq() and mp_hal_ticks_cpu_init() were added and used.
- mp_hal_pin_high() and mp_hal_pin_low() were changed for symmetry
2021-09-10 13:32:53 +10:00
robert-hh
8edc3aacdd mimxrt/modutime: Extend the time module.
Methods added:
- time.time()
- time.time_ns()
- time.gmtime()
- time.localtime()
- time.mktime()

The rp2 port was uses as the template for the change.
2021-06-16 01:50:09 +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
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
c732b80f05 mimxrt: Extend the Pin module for SoftI2C, SoftSPI support.
This change consists mostly of changing and extending the required
definitions in mphalport.h.
2021-05-25 20:43:52 +02:00
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
Damien George
7408ca1d78 mimxrt: Improve ticks and sleep functions using GPT.
SysTick cannot wake the CPU from WFI/WFE so a hardware timer is needed to
keep track of ticks/delay (similar to the nrf port).

Fixes issue #7234.

Signed-off-by: Damien George <damien@micropython.org>
2021-05-18 22:36:32 +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
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