DESK-RZ-L/General/Release Notes
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| 2025/12/16 | DESK-RZ-L-1.0.0 | ||
Contents
Release Notes[edit | edit source]
DAVE Embedded Systems adds to the latest Linux BSP from Renesas the customization required to support the SOC platform. For this reason most of the documentation provided by Renesas remains valid for the DESK development kit.
However, some customization is required, in particular at bootloader and linux kernel levels.
The following table reports the DESK-RZ-L releases information.
| DESK version | |
|---|---|
| Release number | 1.0.0 |
| Release type | Major |
| Status | Released |
| Release date | Dec 2025 |
| Release notes | Ver 1.0.0 |
| Product support | ZERO |
| MVM (distro version) | Ubuntu 20.04 |
| TF-A version | v2.7(release):desk-rz-l-1.0.0 |
| U-Boot version | 2021.10-desk-rz-l-1.0.0 |
| Linux version | 5.10.145-desk-rz-l-1.0.0 |
| Drivers |
Ethernet I2C |
| Manufacturer BSP version | rzt2h-5.10 |
| Build System | Yocto dunfell |
DESK-RZ-L 1.0.0[edit | edit source]
 New MVM must be installed for using DESK-RZ-L-1.0.0. The VM is available for download on DAVE's Reserved Area for registered users. |
Release notes:
- Major change to Renesas BSP 5.10.145-cip
- Carrier board support for full Linux peripherals support
Known Limitations[edit | edit source]
The following table reports the known limitations of this DESK-RZ-L release:
| Issue | Description |
|---|---|
| PCIe | If no device is connected at boot, there will be a delay while the PCIe block attempts to communicate with a device until a timeout occurs (~60 sec). |
| Ethernet | In U-Boot, the reset of the ETH_A interface via the I2C GPIO expander is not supported.
|
| Boot issue | A reboot may lead to boot issues; it is recommended to power-cycle the carrier board using the on-board power switch (turn it off and then on again). |
| Console connection | The first connection of the serial console must be performed with the board powered on; otherwise, the FTDI power cycle may be incorrect. Once the USB console is connected, the board can be powered off and on again without issues. |
| Console USB connection | The FTDI device used for the serial console may cause issues, particularly when sending binaries with the Flash Programmer. Make sure it is connected directly to the host PC and not through a USB hub.
|
| kernel | Linux kernel xconfig, make xconfig does not work
|
| Wayland backend | Yocto with Wayland backend is not supported yet |
Downloadable binary images[edit | edit source]
All binary images for DESK-RZ-L are hosted on DAVE Embedded System mirror server. There, you can find a subdirectory for each version of this development kit.
U-boot performs a 2-stage bootloader providing two files: BL2 file and FIP.
There are different BL2 images depending on the selected boot peripheral, while the FIP image is always the same.
For details on how to program the different memories, refer to the deployment section.
A summary of the available images, together with a brief description, is provided in the table below:
| Image | DESK-RZ-L-1.0.0 | |
|---|---|---|
| Platform | EB23 | |
| LCD panel (only with ConfigID 2002) | Ampire AM-800480BTMQW-TBMH-A 800x480 7"RGB | |
| Touchscreen (only with ConfigID 2002) | capacitive | |
| Flash Programmer Header | HDR NM | |
| Flash Programmer | Flash_Programmer_SCIF_CR52_RZT2H_EVK.mot | |
| BL2 for xSPI NOR | bl2_bp_xspi0-desk-t2h-usd-devel.srec | |
| u-boot.img | fip-desk-t2h-usd-devel.srec | |
| Linux kernel | Image | |
| Device tree | rzt2h-eb23-cb2002.dtb | |
| Device tree | rzt2h-eb23-cb2003.dtb | |
| uSD binary | desk-rz-image-desk-t2h-usd-devel.wic.bz2 | |
Release types[edit | edit source]
DESK release type can be:
- Major, when substantial changes are applied to the BSP (eg: major kernel version upgrades) or to the development kit (eg: new features, build system updates, ..). This usually means that a new DVDK is created for the DESK release
- Maintenance, when minor updates and bug fixes are introduced. This usually means that the DVDK remains the same provided with the previous major version, and only an update of the source tree repositories (and the tftp binaries) is required
As an example, DESK-RZ-L-1.1.0 is a maintenance release, so it provides the DVDK released with the 1.0.0 major release; customers can easily upgrade to the 1.1.0 release by updating the software components as described in Synchronizing git repositories.
Supported platforms[edit | edit source]
The following table reports the supported platforms in this DESK release:
| Platform | Description |
|---|---|
| ZERO Evaluation Kit | Single Board Computer using ZERO SOM as Evaluation Kit |
