Xassette Asterisk

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Xassette Asterisk
Xassette Asterisk RevB.jpg
Manufacturer SdtElectronics
Dimensions 56mm x 56mm
Release Date November 2021
Website Xassette-Asterisk
SoC D1s @ 1.0Ghz
DRAM 64MiB @ ? MHz
Power DC 5V @ 2A (via OTG or dedicated USB Type-C connector)
Audio 3.5mm headphone plug, 3.5mm line in, I2S
Network WiFi 802.11 b/g/n (Realtek RTL8189FTV))
Storage µSD, SPI NAND
USB 1 USB2.0 Host, 1 USB Type-C OTG

Xassette-Asterisk is an open-source reference design for D1s developed by SdtElectronics. It was released in November 2021 and exposed all peripherals of D1s via a range of connectors, in which USB, headphones, line-in, RGB LCD, DVP camera, SD and SPI flash have on-board standard interface. The hardware design is open-source under the CERN OHL-w v2 licence.

This page needs to be properly filled according to the New Device Howto and the New Device Page guide.


The mark "Xassette-Asterisk" can be found at the back of the PCB.

Sunxi support

Current status

As D1s has little difference between D1, the tina BSP for D1 can be adopted to D1s without much modification.


An image ready to be burned into the card is at the release page in the Github repository

Tips, Tricks, Caveats

FEL mode

The FEL button triggers FEL mode. The xfel tool has support for the D1s chip.


External links