Gk7102 Datasheet -

An Analytical Review of the GK7102 Datasheet: A Low-Power Vision Processor

C. Edge AI Add-on

• NPU co-processor: Connect a tinyML accelerator (e.g., GAP8) via UART3 or USB host. The GK7102 datasheet confirms USB supports both device and host modes via an external ID pin.

4. Connectivity

• Sensor Interface: Parallel 8/10/12-bit DVP interface. It supports most standard CMOS sensors (e.g., from OmniVision or GalaxyCore).
• Network: RMII interface for 10/100Mbps Ethernet.
• Peripherals: USB 2.0 (Device/Host), SDIO 2.0 (for SD cards), UART, I2C, SPI, and GPIO.

8. Thermal Management and Power Dissipation

According to thermal test data in the datasheet:

• Idle (CPU sleep, no video): 120 mW.
• 1080p30 encoding + network streaming: 750 mW to 900 mW.
• Junction-to-ambient (θJA): 28°C/W for QFN; 22°C/W for BGA (with thermal vias).

For enclosed IP cameras, the datasheet recommends a 2-layer copper pad under the chip and at least 6 thermal vias to the bottom layer. gk7102 datasheet

Firmware Development Using the Datasheet

The GK7102 datasheet includes a 20-page register map section. While Goke’s SDK abstracts most registers, bootloader developers need direct access to: An Analytical Review of the GK7102 Datasheet: A

• Clock gating registers: Disable unused peripherals (e.g., I2S if not used) to save 50mA.
• Watchdog timer: Base address 0x100E0000. The datasheet provides the unlock sequence (write 0x5A5A to offset 0x08).
• GPIO direction control: Set via PIO_DIR0 (0x10060000). Default is input to avoid contention.

Critical errata: Some datasheet revisions note a bug in the Ethernet DMA. Workaround: Disable TX checksum offloading in the driver. NPU co-processor: Connect a tinyML accelerator (e