
This SDK has been patched by Embedded Artists for the iMXRT1062 Developer's Kit.
The SDK was released on 2022-11-18 and is based on NXP's 2.12.1 SDK (SDK_2_12_1_MIMXRT1062xxxxA.zip).

This is what has been patched:
* Set CPU speed according to Commercial/Industrial CPU
* Correction of the VDD_SOC_IN voltage.
* Flash settings (speed, algorithm, size, driver) to work with the 4MB OctalSPI ATXP032
* LWIP projects - added reading of the MAC address from the onboard I2C EEPROM
* Added an I2C driver for the gpio expander (PCA6416) and code to use it
* Modified pin muxing
* SEMC projects - changed algorithm for memory test and now test entire 32MB instead of only 4KB
* Adjusted the USB interface number for USB Host examples (it is different for host and device examples)
* Added a software_reset() function in board.c/.h to issue a JEDEC reset before NVIC_SystemReset()
* Changed the Wi-Fi examples to use the Embedded Artists 1XK M.2 Module (EAR00385) as default
* Many of the projects have been updated to use a more complete pin_mux.c file where all
  necessary pins have been initialized. The SDK examples used to only configure the pins
  that they use (and often not every pin) and most of the time the configuration was only
  for MUX:ing and not the PAD settings (pull up/down/none, drive strength and slew).
* Embedded Wizard project 'ew_gui_smart_thermostat' was incorrectly setup for EVKB
* Changed the default display to RK043FN02H as it is the one mounted on the Developer's Kits

This has been added:
* New WDOG examples that work
* I2C probe example
* Example to show the use of software_reset()

This has been removed:
* All projects for the EVK - only keeping EVKB which is then patched
* The original WDOG and RTWDOG examples as those were not working

Important things to note:
* Read section "8 - Known Issues" in docs/MCUXpresso SDK Release Notes for EVK-MIMXRT1060.pdf
  to see known issues with the current version of the SDK.
* For Iperf examples, set compiler optimization to -O3 or similar to improve performance.
* If the hardware seems unresponsive and the debugger cannot connect/flash/erase the current program
  then the most likely cause is the running program preventing the access. To stop the currently
  running program and regain control:
  1) Press and hold down the ISP_ENABLE button (SW1)
  2) Press and hold down the RESET button (SW3)
  3) Let go of the RESET button
  4) Wait an extra second or two
  5) Release the ISP_ENABLE button
  6) The hardware is now in a mode where programming/erasing it should work

Connectors:
* J22 (micro USB) is the default UART and unless specified otherwise it is setup for 115200 8/N/1


Everything below this line is the original content of the readme file.
=======================================================================



Overview
========
This WDOG Example project demonstrates an eight second watchdog that times
out and triggers a reset.

NOTE: Please notice that because WDOG control registers are write-once only.
      And for the field WDT, once software performs a write "1" operation
	  to this bit, it can not be reset/cleared until the next POR, this
	  bit does not get reset/ cleared due to any system reset. So the
	  WDOG_Init function can be called only once after power reset when
	  WDT set, and the WDOG_Disable function can be called only once
	  after reset.

NOTE: It is very unlikely that this example can be executed in a debugger

NOTE: After flashing this example you have to put the board in ISP mode
      to be able to flash it again as the watchdog keeps resetting the
      connection to the debugger. See the User Manual on how to put the
      board in ISP mode.

Toolchain supported
===================
- IAR embedded Workbench  8.50.9
- Keil MDK  5.33
- GCC ARM Embedded  9.3.1
- MCUXpresso  11.3.0

Hardware requirements
=====================
- Mini/micro USB cable
- Embedded Artists iMX RT1062 Developer's Kit
- Personal Computer

Board settings
==============
No special settings are required.

Prepare the Demo
================
1.  Connect a USB cable between the host PC and the OpenSDA USB port on the target board. 
2.  Open a serial terminal with the following settings:
    - 115200 baud rate
    - 8 data bits
    - No parity
    - One stop bit
    - No flow control
3.  Download the program to the target board.
4.  Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo
================
These instructions are displayed/shown on the terminal window:
~~~~~~~~~~~~~~~~~~~~~~~
******** System Start ********
System reset by: Power On Reset!

- Testing system reset by WDOG timeout.
--- wdog Init done, timeout=8s ---
Waiting for WDOG to reset...
Waiting for WDOG to reset...
Waiting for WDOG to reset...
Waiting for WDOG to reset...
Waiting for WDOG to reset...

******** System Start ********
System reset by: Power On Reset!

- Testing system reset by WDOG timeout.
--- wdog Init done, timeout=8s ---
Waiting for WDOG to reset...
Waiting for WDOG to reset...
...

~~~~~~~~~~~~~~~~~~~~~
Customization options
=====================

