yaosheng79/Xassette-IoT-MT7620

Versatile card computer based on MT76x8

Xassette IoT

Hardware Resources

• SoC: MediaTek MT7628 1xMIPS 24Kc@580Mhz
• RAM: 64MB DDR2
• ROM: 8M SPI flash EN25Q64
• WLAN: 802.11n, 2T2R, speed up to 300Mbps
• EPHY: 5×100M with 2 onboard RJ-45 ports
• USB: 1×USB2.0 HS
• Connectivity: 2×UART¹, 1×I2C, 1×I2S, 1×SPI², 1×SDIO³, 4×PWM

Note:

1. UART1 is used as debug serial at baud rate 57600 with default firmware
2. Shared with onboard NOR flash
3. Supports SDXC up to 2TB

Flashing New Firmware

• See Guide on Firmware

Build New Firmware From Source

• See Build From Scratch

Schematic

PDF format is available at hw/anBreakout.pdf

Note: IOxx in the schematic as well as the silk numbers onboard correspond to the GPIO indices in the table below.

Board Gerber

See Releases

Errata

In v0.2

• Silk text error: MDI1 should be MDI2
• Net error: 1V8 is not connected
• Annotation and silk text error: pin45 should be pin12
• Annotation and silk text error: pin46 should be pin13