RZ-A/Boards/YLCDRZA1H

YLCDRZA1H Board

AKA, "High Resolution Embedded GUI Solution Kit for RZ/A1H" https://www.renesas.com/en-us/products/software-tools/boards-and-kits/renesas-demonstration-kits/ylcdrza1h.html

The "High Resolution Embedded GUI Solution Kit for RZ/A1H" is intended to showcase the graphics and image capture capabilities of the RZ/A1H as well as 3rd party middleware (non-OS and RTOS) using a 1280x800 LCD. However, the board can be used to run Linux as well.

USB-to-Serial Module

• The board itself does not have a USB-to-Serial connection. Instead, you will have to use the PMOD connector that brings out SCIF3 and supply your own adapter.
• The Digilent PmodUSBUART module seems to work pretty good because all you have to do is plug it in and you're all set. ( https://www.digikey.com/products/en?keywords=1286-1097-ND )

Build Environment Setup

Install the RZ/A1 RSK BSP

• We will us the RSK BSP build environment even though we we will be using a YLCDRZA1H board. The reason is that the u-boot and Linux repositories on github also support YLCDRZA1H.

# Clone the BSP from github
$ git clone https://github.com/renesas-rz/rskrza1_bsp.git
$ cd rskrza1_bsp

Get Latest code from github

• (which will include YLCDRZA1H updates)
• Update the u-boot and kernel source inside the BSP by pulling updates from github

$ ./build.sh update u
$ ./build.sh update k

Select YLCDRZA1H as the Target Board

• First enter the BSP configuration screen

$ ./build.sh config

• Then change the Target Board selection (the first item in list) from RSKRZA1 to YLCDRZA1H
• Select Save (the last item in the list)
• Now all your build defaults and J-Link programming examples will be specifically for YLCDRZA1H

Install Segger Jlink Drivers for Linux

• NOTE: This board has the JLINK HW already included on the board, so all you have to do is plug a USB cable into J17.
• Install the "J-Link Software and Documentation Pack" from Segger's website
• https://www.segger.com/downloads/jlink
• Hint: You need to click the "Click for downloads" to actually find the download links.

Building

• The tested build environment was Ubuntu. If using another distribution, some changes might be needed (but I'm not sure what exactly).
• Lines that start with the symbol '$' are to be copy/pasted into the Linux PC terminal (without the $)
• Lines that start wit the symbol '=>' are u-boot commands
• Lines that start wit the symbol '#' are just comments

Build the File System

• We do this first because we need Buildroot to download the toolchain that we will use to build u-boot and the kernel.
• NOTE that I suggest the 'minimum' file system option when prompted becase it makes the build much quicker.
• NOTE that because the Stream it uses a different serial port (SCIF3) as the RSK board(SCIF2), we will have to modify the Buildroot config from it's default RSK board value.

$ ./build.sh buidlroot

• Now go back and switch the serial console (BR2_TARGET_GENERIC_GETTY_PORT from /dev/ttySC2 to /dev/ttySC3

$ ./build.sh buidlroot menuconfig

System configuration -> Run a getty (login prompt) after boot -> (ttySC2) TTY port -> Change "ttySC2" to ttySC3"

Now use ESC to back out of the menu and save the new config.

• Run Buildroot again (will be quick this time)

$ ./build.sh buidlroot

• Also build the AXFS XIP file image

$ ./build.sh axfs

Build u-boot

$ ./build.sh u-boot ylcdrza1h_defconfig
$ ./build.sh u-boot

Build the Kernel and Device Tree

more coming soon...