Banana Pi BPI-Forge1 desing with Rockchip RK3506J,The RK3506J is a high-performance triple-core Cortex-A7 application processor designed for intelligent voice interaction, audio input/output processing, image output processing, and other digital multimedia applications. It features an embedded 2D hardware engine and display output engine to minimize CPU overhead and meet image display requirements. The processor integrates rich peripheral interfaces such as SAI, PDM, SPDIF, Audio DSM, Audio ADC, USB2 OTG, RMII, CAN, etc., enabling diverse application development while reducing hardware complexity and development costs.

Hardware interface:


Hardware Spec:

SOC	RockChip RK3506J
CPU	RK3506 Triple-core Cortex-A7 Processor
GPU	2D Graphic Engine
	Embedded high-performance 2D acceleration hardware
Memory	512MB DDR3L
Storage	512MB NAND
	Supports MicroSD card expansion
Networking	2 × 100M Ethernet
Video Output	1 x MIPI DSI (2Lane 1.5Gbps)
Audio	1 × Speaker
	1 × MIC
USB Interfaces	1 × Type C (PD & Programming only)
	1 × USB2.0 HOST
40-PIN	Partially compatible with Raspberry Pi 40-pin for peripheral connectivity
	Supports UART/SPI/I2C/I2S/PWM/5V Power/3.3V Power
Power Supply	12V/2A
Buttons	1x Maskrom Key (enters maskrom flashing mode)
OS	Officially supported by Rockchip: Buildroot
Dimensions	92 mm x 62mm
Operating Temperature	-40℃ ~ 85℃

On line wiki documents: https://docs.banana-pi.org/en/BPI-Forge1/BananaPi_BPI-Forge1