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mimxrt/boards: Update the board.json files and add deploy_xx.md files.
- Add board.md files for MIMXRT1060_EVK and MIMXRT1064_EVK warning about their experimental state. - Add separate deploy_teensy.md and deploy_mimxrt.md files.
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‎ports/mimxrt/boards/MIMXRT1010_EVK/board.json

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{
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"deploy": [
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"../deploy.md"
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"../deploy_mimxrt.md"
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],
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"docs": "",
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"features": [],
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"features": [
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"MicroUSB",
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"Microphone",
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"AudioCodec",
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"SPDIF",
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"OpenSDA",
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"JLink"
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],
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"images": [
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"i.MXRT1010-TOP.jpg"
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],

‎ports/mimxrt/boards/MIMXRT1020_EVK/board.json

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{
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"deploy": [
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"../deploy.md"
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"../deploy_mimxrt.md"
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],
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"docs": "",
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"features": [],
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"features": [
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"Ethernet",
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"SDRAM",
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"MicroSD",
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"MicroUSB",
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"Microphone",
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"AudioCodec",
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"CAN",
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"OpenSDA",
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"JLink"
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],
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"images": [
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"MIMXRT-1020-EVKBD.jpg"
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],

‎ports/mimxrt/boards/MIMXRT1050_EVK/board.json

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{
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"deploy": [
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"../deploy.md"
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"../deploy_mimxrt.md"
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],
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"docs": "",
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"features": [],
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"features": [
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"Ethernet",
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"SDRAM",
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"MicroSD",
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"MicroUSB",
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"Microphone",
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"AudioCodec",
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"SPDIF",
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"CAN",
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"OpenSDA",
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"JLink"
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],
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"images": [
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"IMX_RT1050-EVKB_TOP-LR.jpg"
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],

‎ports/mimxrt/boards/MIMXRT1060_EVK/board.json

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{
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"deploy": [
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"../deploy.md"
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"../deploy_mimxrt.md"
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],
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"docs": "",
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"features": [],
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"features": [
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"Ethernet",
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"SDRAM",
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"MicroSD",
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"MicroUSB",
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"Microphone",
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"AudioCodec",
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"SPDIF",
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"CAN",
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"Camera",
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"OpenSDA",
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"JLink"
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],
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"images": [
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"X-MIMXRT1060-EVK-BOARD-BOTTOM.jpg"
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],

‎ports/mimxrt/boards/MIMXRT1060_EVK/board.md

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The port for this board is experimental. It is made based on the documentation, but was not yet tested.

‎ports/mimxrt/boards/MIMXRT1064_EVK/board.json

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{
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"deploy": [
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"../deploy.md"
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"../deploy_mimxrt.md"
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],
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"docs": "",
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"features": [],
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"features": [
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"Ethernet",
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"SDRAM",
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"MicroSD",
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"MicroUSB",
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"Microphone",
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"AudioAmp",
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"SPDIF",
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"CAN",
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"Camera",
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"OpenSDA",
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"JLink"
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],
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"images": [
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"MIMXRT1064EVK-TOP.jpg"
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],

‎ports/mimxrt/boards/MIMXRT1064_EVK/board.md

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The port for this board is experimental. It is made based on the documentation, but was not yet tested.

‎ports/mimxrt/boards/TEENSY40/board.json

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{
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"deploy": [
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"../deploy.md"
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"../deploy_teensy.md"
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],
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"docs": "",
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"features": [],
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"features": [
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"Breadboard Friendly"
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],
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"images": [
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"teensy40_front.jpg"
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],

‎ports/mimxrt/boards/TEENSY41/board.json

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{
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"deploy": [
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"../deploy.md"
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"../deploy_teensy.md"
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],
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"docs": "",
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"features": [],
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"features": [
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"MicroSD",
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"Ethernet",
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"Breadboard Friendly"
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],
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"images": [
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"teensy41_4.jpg"
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],

‎ports/mimxrt/boards/deploy.md

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‎ports/mimxrt/boards/deploy_mimxrt.md

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Firmware can be loaded to the MIMXRT development boards in various ways. The most convenient
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one is using the built-in support MCU. When a PC is connected to the debug USB port, a drive
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icon will appear. Firmware can be uploaded to the board by copying it to this drive. The copy
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and flashing will take a few moments. At the end of the upload, the drive icon will disappear
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and reappear again. Then the reset button has to be pushed, which starts the MicroPython firmware.
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Depending on the power jumper settings, both the debug USB and OTG USB port have to be powered
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during firmware upload.
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You may as well load the firmware using the JLink port or openSDA interface with the appropriate tools.
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For more options, consult the user guide of the board.

‎ports/mimxrt/boards/deploy_teensy.md

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For deploying the firmware use the Teensy Loader tool provided by PJRC on their web site.
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PJRC provides both a graphical and command line version for Windows, OS X and Linux.
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With the command line version, run the command:
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```bash
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teensy_loader_cli --mcu=imxrt1062 -v -w TEENSY40-<date_version_tag>.hex
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```
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or for Teensy 4.1:
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```bash
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teensy_loader_cli --mcu=imxrt1062 -v -w TEENSY41-<date_version_tag>.hex
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```
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When loading the firmware the PJRC boot loader will erase the content of the board file system.

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