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Electronics news

Sophgo SG2002 in updated Duo board

Sophgo's system-on-chip (SoC) is available on a development board. Milk-V has introduced 2 variants of its Duo design with microcontrollers: the Duo 256M and the Duo S.

Milk-V Duo was introduced in June 2023 as a RISC-V alternative to the Raspberry Pi Pico and Raspberry Pi Zero. It is based on Sophgo's CV1800B, a dual-core system-on-a-chip with Linux support and 64MB RAM (small). So the company has released an updated version with more memory, up to 512MB.

The new Duo 256M and Duo S are based on Sophgo's SG2002 and SG2002 processors, respectively. Both chips have main processor cores running at 1GHz, an RTOS-oriented secondary core running at 700MHz, and an 8051 microcontroller core. The Duo 256M, as the name suggests, offers 256MB of memory, while the Duo S, despite its lower system-on-chip level, doubles that to 512MB.

The difference between the two boards is further magnified when looking at the peripheral connectivity options. The Duo 256M offers microSD and optional NAND flash on board, a USB Type-C connector for data and power, dual-channel MIPI Camera Serial Interface (CSI), Fast Ethernet paired with an optional connector, and 26 general purpose input/output (GPIO) pins.

The Duo S offers a USB 2.0 Type-A Host port, an optional dual-channel CSI port, an integrated RJ45 connector for Fast Ethernet, built-in Wi-Fi 6 and Bluetooth 5, and up to 39 GPIO pins.