
This SDK has been patched by Embedded Artists for the iMXRT1064 Developer's Kit.
The SDK was released on 2021-12-01 and is based on NXP's 2.10.0 SDK (SDK_2_10_0_MIMXRT1064xxxxA.zip).

This is what has been patched:
* Set CPU speed according to Commercial/Industrial CPU
* Correction of the VDD_SOC_IN voltage.
* LWIP projects - added reading of the MAC address from the onboard I2C EEPROM
* Wi-Fi and Bluetooth projects
* Added an I2C driver for the gpio expander (PCA6416) and code to use it
* Added an I2C driver for the PWM gpio expander (PCA9530) and code to use it
* Modified pin muxing
* SEMC projects - changed algorithm for memory test and now test entire 32MB instead of only 4KB
* Examples using a disaplay have been updated to use PCA6416/PCA9530 for
  RST/PWR/BL signals
* BOARD_USER_BUTTON has been redirected to SW5/WAKEUP button on the uCOM Carrier Board
* USER_LED has been changed to the blue RGB LED using PCA6416
* Adjusted the USB interface number (it is different for host and device examples)
* Added support for Embedded Artists 2DS M.2 Module (EAR00386) in the NXP Wi-Fi examples
* Added support for Embedded Artists 1ZM M.2 Module (EAR00364) in the NXP Wi-Fi examples
* Added support for Embedded Artists 1XK M.2 Module (EAR00385) in the NXP Wi-Fi examples
* Changed reset pin for SD card examples

This has been added:
* LWIP projects - option to use 100/10Mbps Ethernet-PHY Adapter
* AWS projects - option to use 100/10Mbps Ethernet-PHY Adapter
* AzureRTOS projects - option to use 100/10Mbps Ethernet-PHY Adapter
* I2C probe example
* Wi-Fi (serial) examples for the CMWC1ZZABR-107-EVB (a.k.a ABR Module)

This has been removed:
* All projects for the expansion board AGM01

Important things to note:
* Read section "8 - Known Issues" in docs/MCUXpresso SDK Release Notes for EVK-MIMXRT1064.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:
* J29 (micro USB) is the default UART and unless specified otherwise it is setup for 115200 8/N/1


This example does not support the 100/10Mbps Ethernet-PHY Adapter.
Use the J25 connector on the uCOM Carrier Board.


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



Overview
========

The enet_rxtx_ptp1588 example shows the way to use ENET driver to  
 receive and transmit frame in the 1588 feature required cases.

1. This example shows how to initialize the ENET MAC.
2. How to use ENET MAC to receive and transmit frame.
3. How to add to the multicast group to receive PTP 1588 message.
4. How to get the time stamp of the PTP 1588 timer.
4. How to use Get the ENET transmit and receive frame time stamp.

The example transmits 20 number PTP event frame, shows the timestamp of the transmitted frame.
The length, source MAC address and destination MAC address of the received frame will be print. 
The time stamp of the received timestamp will be print when the PTP message frame is received. 

Note, The RMII mode is used for default setting to initialize the ENET interface between MAC and the external PHY. you 
can change it to MII mode as you wish. Please make sure the MII Mode setting in the MAC is synchronize to the setting
in TWR-SERIAL board for the external PHY.

Toolchain supported
===================
- IAR embedded Workbench  9.10.2
- Keil MDK  5.34
- GCC ARM Embedded  10.2.1
- MCUXpresso  11.4.0

Hardware requirements
=====================
- Mini/micro USB cable
- Loopback network cable RJ45 standard
- EVK-MIMXRT1064 board
- 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.  Insert loopback network cable to Ethernet RJ45 port.
4.  Download the program to the target board.
5.  Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Make loopback network cable:
      568B standard 	 Unknowed standard
J1    orange+white       green+white
J2    orange             green
J3    green+white        orange+white
J4    blue               brown+white
J5    blue+white         brown
J6    green              orange
J7	  brown+white        blue
J8    brown              blue+white

Connect J1 => J3, J2 => J6, J4 => J7, J5 => J8. 10/100M transfer only requires J1, J2, J3, J6, and 1G transfer requires all 8 pins.
Check your net cable color order and refer to 568B standard or the other standard. If your cable's color order is not showed in the list,
please connect J1~J8 based on your situation.

Running the demo
================
When the demo runs, the log would be seen on the terminal like:

ENET PTP 1588 example start.

Get the 1-th time xx second xx nanosecond
........
Get the 10-th time xx second xx nanosecond

The 1 frame transmitted success! the timestamp is xx second, xx nanosecond
The 2 frame transmitted success! the timestamp is xx second, xx nanosecond
The 3 frame transmitted success! the timestamp is xx second, xx nanosecond
The 4 frame transmitted success! the timestamp is xx second, xx nanosecond
......
The 20 frame transmitted success! the timestamp is xx second, xx nanosecond

Note: the xx second and xx nanosecond should not be zero and should be number with solid increment.

when a 1000 length ptp event message frame is received, the log would be added to the terminal like:
A frame received. the length 1000 the timestamp is xx second, xx nanosecond
Dest Address xx:xx:xx:xx:xx:xx Src Address xx:xx:xx:xx:xx:xx
