|Installing U-Boot to the Embedded Artists LPC4357 Dev Kit|
Use the procedure documented below to install the U-Boot firmware to the internal Flash of the LPC4357 on the Embedded Artists Dev Kit. Having completed the installation, the LPC4357 will run U-Boot as a primary firmware on next reset / power on.
Please note that the installation will erase whatever other firmware may be installed on your Embedded Artists LPC4357 Dev Kit at the moment and install the U-Boot image instead.
You will need the following items:
Please remark the following comment made in the Embedded Artists LPC4357 Dev Kit User's Manual:
Note that the LPC4357 MCU is sensitive to ESD on the JTAG port. Observe extra care around this.
Here is the installation procedure:
Next reset / power-on should bring up the U-Boot command interface to the serial console of the LPC4357. The initial U-Boot serial console interface should look as shown below:
U-Boot 2010.03-00074-cortexm-1.14.0 (May 19 2015 - 20:34:26)
Please note the on the Linux PC the LPC4357 serial console will be visible as a /dev/ttyUSBx device. The U-Boot and Linux software configures the console for 115.2 Kps operation.
There are various serial communication tools available for Linux, the most popular perhaps being kermit. kermit is a very powerful tool that can be run in interactive mode or controlled by a script. There is abandunt documentation on kermit avialable in the Internet, if you require details.
One possibility is to define on the host a shell script similar to the one below:
$ vi console-lpc4357.script
Change the file mode to make the script an executable file:
$ chmod +x console-lpc4357.script
Then run the script whenever you need to get access to the console:
To exit kermit, type Ctrl-\ and then q.