This topic provides board-specific information about the Nuvoton Gerda-4L.

Board features

• KM2KSD4AZ0UA MCU featuring ARM Cortex-M7@500MHz, 6-MByte VRAM and 1M-Byte I/D TCM
• WVGA 1280x800 display panel
• 32-MByte SDRAM
• Gerda original 2DGFX engine

Supported color depths

The reference port for this board supports 32bpp color depth. See QUL_COLOR_DEPTH and Color depth for more information.

Reading debug messages

Qt Quick Ultralite redirects all the output of qul_printf and Qul::PlatformInterface::log calls to UART, which is available on the host machine through USB.

To enable UART logging, the device has to be set up in the following order:

• Connect all cables except the UART cable.
• Power on PARTNER-Jet2 debugger.
• Power on Gerda-4L device.
• Connect the USB cable for UART.
• Start the serial terminal application with serial settings as 115200 8N1.
• Start PARTNER-Jet2 IDE.

Known issues or limitations

• Running the IAR I-jet for flashing uses the cspybat tool, which you must close manually after flashing is done.
• Shapes (vector graphics) is not supported, as the fallback CPU drawing engine is not compatible with the framebuffer format used.
• Application does not boot after power cycle with debugger connected. Disconnect the debugger if the board is power-cycled.