.. zephyr:board:: mimxrt1050_evk

Overview
********

The i.MX RT1050 is a new processor family featuring NXP's advanced
implementation of the ARM Cortex-M7 Core. It provides high CPU performance and
real-time response.

The i.MX RT1050 provides various memory interfaces, including SDRAM, Raw NAND
FLASH, NOR FLASH, SD/eMMC, Quad SPI, HyperBus and a wide range of other
interfaces for connecting peripherals, such as WLAN, Bluetooth™, GPS, displays,
and camera sensors. As with other i.MX processors, i.MX RT1050 also has rich
audio and video features, including LCD display, basic 2D graphics, camera
interface, SPDIF, and I2S audio interface.

Hardware
********

- MIMXRT1052DVL6A MCU (600 MHz, 512 KB TCM)

- Memory

  - 256 KB SDRAM
  - 64 Mbit QSPI Flash
  - 512 Mbit Hyper Flash

- Display

  - LCD connector
  - Touch connector

- Ethernet

  - 10/100 Mbit/s Ethernet PHY

- USB

  - USB 2.0 OTG connector
  - USB 2.0 host connector

- Audio

  - 3.5 mm audio stereo headphone jack
  - Board-mounted microphone
  - Left and right speaker out connectors

- Power

  - 5 V DC jack

- Debug

  - JTAG 20-pin connector
  - OpenSDA with DAPLink

- Sensor

  - FXOS8700CQ 6-axis e-compass
  - CMOS camera sensor interface

- Expansion port

  - Arduino interface

- CAN bus connector

For more information about the MIMXRT1050 SoC and MIMXRT1050-EVK board, see
these references:

- `i.MX RT1050 Website`_
- `i.MX RT1050 Datasheet`_
- `i.MX RT1050 Reference Manual`_
- `MIMXRT1050-EVK Website`_
- `MIMXRT1050-EVK User Guide`_
- `MIMXRT1050-EVK Schematics`_

External Memory
===============

This platform has the following external memories:

+--------------------+------------+-------------------------------------+
| Device             | Controller | Status                              |
+====================+============+=====================================+
| IS42S16160J        | SEMC       | Enabled via device configuration    |
|                    |            | data block, which sets up SEMC at   |
|                    |            | boot time                           |
+--------------------+------------+-------------------------------------+
| S26KS512SDPBHI020  | FLEXSPI    | Enabled via flash configuration     |
|                    |            | block, which sets up FLEXSPI at     |
|                    |            | boot time.                          |
+--------------------+------------+-------------------------------------+

Supported Features
==================

.. zephyr:board-supported-hw::

.. note::

   For additional features not yet supported, please also refer to the
   :zephyr:board:`mimxrt1064_evk` , which is the superset board in NXP's i.MX RT10xx family.
   NXP prioritizes enabling the superset board with NXP's Full Platform Support for
   Zephyr.  Therefore, the mimxrt1064_evk board may have additional features
   already supported, which can also be re-used on this mimxrt1050_evk board.

Connections and IOs
===================

The MIMXRT1050 SoC has five pairs of pinmux/gpio controllers.

+---------------+-----------------+---------------------------+
| Name          | Function        | Usage                     |
+===============+=================+===========================+
| GPIO_AD_B0_00 | LPSPI1_SCK      | SPI                       |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_01 | LPSPI1_SDO      | SPI                       |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_02 | LPSPI3_SDI/LCD_RST| SPI/LCD Display         |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_03 | LPSPI3_PCS0     | SPI                       |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_05 | GPIO            | SD Card                   |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_09 | GPIO/ENET_RST   | LED                       |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_10 | GPIO/ENET_INT   | GPIO/Ethernet             |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_11 | GPIO            | Touch Interrupt           |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_12 | LPUART1_TX      | UART Console              |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_13 | LPUART1_RX      | UART Console              |
+---------------+-----------------+---------------------------+
| GPIO_AD_B1_00 | LPI2C1_SCL      | I2C                       |
+---------------+-----------------+---------------------------+
| GPIO_AD_B1_01 | LPI2C1_SDA      | I2C                       |
+---------------+-----------------+---------------------------+
| GPIO_AD_B1_06 | LPUART3_TX      | UART BT HCI               |
+---------------+-----------------+---------------------------+
| GPIO_AD_B1_07 | LPUART3_RX      | UART BT HCI               |
+---------------+-----------------+---------------------------+
| GPIO_AD_B1_11 | ADC             | ADC1 channel 0            |
+---------------+-----------------+---------------------------+
| WAKEUP        | GPIO            | SW0                       |
+---------------+-----------------+---------------------------+
| GPIO_B0_00    | LCD_CLK         | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_01    | LCD_ENABLE      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_02    | LCD_HSYNC       | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_03    | LCD_VSYNC       | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_04    | LCD_DATA00      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_05    | LCD_DATA01      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_06    | LCD_DATA02      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_07    | LCD_DATA03      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_08    | LCD_DATA04      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_09    | LCD_DATA05      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_10    | LCD_DATA06      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_11    | LCD_DATA07      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_12    | LCD_DATA08      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_13    | LCD_DATA09      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_14    | LCD_DATA10      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B0_15    | LCD_DATA11      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B1_00    | LCD_DATA12      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B1_01    | LCD_DATA13      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B1_02    | LCD_DATA14      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B1_03    | LCD_DATA15      | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_B1_04    | ENET_RX_DATA00  | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_05    | ENET_RX_DATA01  | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_06    | ENET_RX_EN      | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_07    | ENET_TX_DATA00  | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_08    | ENET_TX_DATA01  | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_09    | ENET_TX_EN      | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_10    | ENET_REF_CLK    | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_11    | ENET_RX_ER      | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_B1_12    | GPIO            | SD Card                   |
+---------------+-----------------+---------------------------+
| GPIO_B1_14    | USDHC1_VSELECT  | SD Card                   |
+---------------+-----------------+---------------------------+
| GPIO_B1_15    | BACKLIGHT_CTL   | LCD Display               |
+---------------+-----------------+---------------------------+
| GPIO_EMC_40   | ENET_MDC        | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_EMC_41   | ENET_MDIO       | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_09 | ENET_RST        | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_AD_B0_10 | ENET_INT        | Ethernet                  |
+---------------+-----------------+---------------------------+
| GPIO_SD_B0_00 | USDHC1_CMD/LPSPI1_SCK | SD Card/SPI         |
+---------------+-----------------+---------------------------+
| GPIO_SD_B0_01 | USDHC1_CLK/LPSPI1_PCS0 | SD Card/SPI        |
+---------------+-----------------+---------------------------+
| GPIO_SD_B0_02 | USDHC1_DATA0/LPSPI1_SDO | SD Card/SPI       |
+---------------+-----------------+---------------------------+
| GPIO_SD_B0_03 | USDHC1_DATA1/LPSPI1_SDI | SD Card/SPI       |
+---------------+-----------------+---------------------------+
| GPIO_SD_B0_04 | USDHC1_DATA2    | SD Card                   |
+---------------+-----------------+---------------------------+
| GPIO_SD_B0_05 | USDHC1_DATA3    | SD Card                   |
+---------------+-----------------+---------------------------+
| GPIO_AD_B1_02 | 1588_EVENT2_OUT | 1588                      |
+---------------+-----------------+---------------------------+
| GPIO_AD_B1_03 | 1588_EVENT2_IN  | 1588                      |
+---------------+-----------------+---------------------------+

.. note::
        In order to use the SPI peripheral on this board, resistors R278,
        R279, R280, and R281 must be populated with zero ohm resistors

System Clock
============

The MIMXRT1050 SoC is configured to use SysTick as the system clock source,
running at 600MHz.

When power management is enabled, the 32 KHz low frequency
oscillator on the board will be used as a source for the GPT timer to
generate a system clock. This clock enables lower power states, at the
cost of reduced resolution

Serial Port
===========

The MIMXRT1050 SoC has eight UARTs. ``LPUART1`` is configured for the console,
``LPUART3`` for the Bluetooth Host Controller Interface (BT HCI), and the
remaining are not used.

USB
===

The RT1050 SoC has two USB OTG (USBOTG) controllers that supports both
device and host functions through its micro USB connectors.
Only USB device function is supported in Zephyr at the moment.

Board Targets
*************

This board has two variants that can be targeted,
depending on which flash to set as ``zephyr,flash``:

* ``mimxrt1050_evk/mimxrt1052/hyperflash`` is the default variant for the out of box
  setup of the board using hyperflash.
* ``mimxrt1050_evk/mimxrt1052/qspi`` is for a board that has been reworked to use the
  qspi flash instead of hyperflash.

Programming and Debugging
*************************

.. zephyr:board-supported-runners::

.. note::
   Newer revisions of this board use :ref:`lpc-link2-onboard-debug-probe`,
   while older revisions use the :ref:`opensda-onboard-debug-probe`.
   Schematic revisions A/A1 use the K20 OpenSDA probe, and B/B1 use the
   LPC-Link2 LPC4322 probe.

This board supports 3 debug host tools. Please install your preferred host
tool, then follow the instructions in `Configuring a Debug Probe
(Schematic A/A1)`_ or `Configuring a Debug Probe (Schematic B/B1)`_,
depending on board schematic revision to configure the board appropriately.

* :ref:`linkserver-debug-host-tools` (Default, NXP Supported)
* :ref:`jlink-debug-host-tools` (NXP Supported)
* :ref:`pyocd-debug-host-tools` (Not supported by NXP)

Once the host tool and board are configured, build and flash applications
as usual (see :ref:`build_an_application` and :ref:`application_run` for more
details).

Configuring a Debug Probe (Schematic A/A1)
==========================================

For the RT1050 Schematic Rev A, J32/J33 are the SWD isolation jumpers, SW4 is
the reset button, and J21 is the 20 pin JTAG/SWD header.

.. include:: ../../common/opensda-debug.rst.inc


Configuring a Debug Probe (Schematic B/B1)
==========================================

For the RT1050 Schematic Rev B, J47/J48 are the SWD isolation jumpers, J42 is
the DFU mode jumper, and J21 is the 20 pin JTAG/SWD header.

.. include:: ../../common/rt1xxx-lpclink2-debug.rst.inc

Configuring a Console
=====================

Regardless of your choice in debug probe, we will use the OpenSDA
microcontroller as a usb-to-serial adapter for the serial console. Check that
jumpers J30 and J31 are **on** (they are on by default when boards ship from
the factory) to connect UART signals to the OpenSDA microcontroller.

Connect a USB cable from your PC to J28.

Use the following settings with your serial terminal of choice (minicom, putty,
etc.):

- Speed: 115200
- Data: 8 bits
- Parity: None
- Stop bits: 1

Flashing
========

Here is an example for the :zephyr:code-sample:`hello_world` application.

.. zephyr-app-commands::
   :zephyr-app: samples/hello_world
   :board: mimxrt1050_evk//hyperflash
   :goals: flash

Open a serial terminal, reset the board (press the SW4 button), and you should
see the following message in the terminal:

.. code-block:: console

   ***** Booting Zephyr OS v1.14.0-rc1 *****
   Hello World! mimxrt1050_evk//hyperflash

Debugging
=========

Here is an example for the :zephyr:code-sample:`hello_world` application.

.. zephyr-app-commands::
   :zephyr-app: samples/hello_world
   :board: mimxrt1050_evk//hyperflash
   :goals: debug

Open a serial terminal, step through the application in your debugger, and you
should see the following message in the terminal:

.. code-block:: console

   ***** Booting Zephyr OS v1.14.0-rc1 *****
   Hello World! mimxrt1050_evk//hyperflash

Troubleshooting
===============

If the debug probe fails to connect with the following error, it's possible
that the boot header in HyperFlash is invalid or corrupted. The boot header is
configured by :kconfig:option:`CONFIG_NXP_IMXRT_BOOT_HEADER`.

.. code-block:: console

   Remote debugging using :2331
   Remote communication error.  Target disconnected.: Connection reset by peer.
   "monitor" command not supported by this target.
   "monitor" command not supported by this target.
   You can't do that when your target is `exec'
   (gdb) Could not connect to target.
   Please check power, connection and settings.

You can fix it by erasing and reprogramming the HyperFlash with the following
steps:

#. Set the SW7 DIP switches to ON-ON-ON-OFF to prevent booting from HyperFlash.

#. Reset by pressing SW4

#. Run ``west debug`` or ``west flash`` again with a known working Zephyr
   application.

#. Set the SW7 DIP switches to OFF-ON-ON-OFF to boot from HyperFlash.

#. Reset by pressing SW4

Board Revisions
***************

The original MIMXRT1050-EVK (rev A0) board was updated with a newer
MIMXRT1050-EVKB (rev A1) board, with these major hardware differences:

- SoC changed from MIMXRT1052DVL6\ **A** to MIMXRT1052DVL6\ **B**
- Hardware bug fixes for: power, interfaces, and memory
- Arduino headers included

For more details, please see the following `NXP i.MXRT1050 A0 to A1 Migration Guide`_.

Current Zephyr build supports the new MIMXRT1050-EVKB

.. include:: ../../common/board-footer.rst.inc

.. _MIMXRT1050-EVK Website:
   https://www.nxp.com/products/microcontrollers-and-processors/arm-based-processors-and-mcus/i.mx-applications-processors/i.mx-rt-series/i.mx-rt1050-evaluation-kit:MIMXRT1050-EVK

.. _MIMXRT1050-EVK User Guide:
   https://www.nxp.com/webapp/Download?colCode=IMXRT1050EVKBHUG

.. _MIMXRT1050-EVK Schematics:
   https://www.nxp.com/webapp/Download?colCode=MIMXRT1050-EVK-DESIGNFILES

.. _i.MX RT1050 Website:
   https://www.nxp.com/products/microcontrollers-and-processors/arm-based-processors-and-mcus/i.mx-applications-processors/i.mx-rt-series/i.mx-rt1050-crossover-processor-with-arm-cortex-m7-core:i.MX-RT1050

.. _i.MX RT1050 Datasheet:
   https://www.nxp.com/docs/en/data-sheet/IMXRT1050CEC.pdf

.. _i.MX RT1050 Reference Manual:
   https://www.nxp.com/docs/en/reference-manual/IMXRT1050RM.pdf

.. _OpenSDA J-Link MIMXRT1050-EVK-Hyperflash Firmware:
   https://www.segger.com/downloads/jlink/OpenSDA_MIMXRT1050-EVK-Hyperflash

.. _NXP i.MXRT1050 A0 to A1 Migration Guide:
   https://www.nxp.com/docs/en/nxp/application-notes/AN12146.pdf

.. _Enable QSPI flash support in SEGGER JLink:
   https://wiki.segger.com/i.MXRT1050#QSPI_flash
