Analysis of Typical Application Scenarios for RK3506

RK3506 is an MPU product launched by Rockchip, with a chip process of 22nm, positioned as a lightweight, low-cost solution.This MPU features low power consumption, a rich set of peripheral interfaces, and high real-time performance, making it suitable for various industrial and commercial scenarios.This article will analyze its application scenarios based on the design characteristics of RK3506.

RK3506 is mainly divided into three models, with the differences between the models shown in the figure below:

Figure 1 RK3506 Processor Models

Scenario 1: Display HMI

Its display interfaces support RGB, MIPI, QSPI output, and support 2D graphics acceleration, easily running QT, LVGL, and other GUIs, booting in as fast as 3 seconds. It supports 720P 30FPS video soft decoding, capable of H.264 and MJPEG decoding.

Figure 2 Quick Boot

Figure 3 Industrial HMI Application Block Diagram

Scenario 2: Industrial Communication

RK3506 supports dual 100M Ethernet, 2 CANFD, and 6 UART interfaces, meeting the control and communication requirements of conventional industrial fields. In addition, this processor supports DSMC bus, allowing for easy expansion of more resources via FPGA.

Figure 4 Rich Resource Interfaces

Scenario 3: PLC Control Applications

The platform supports AMP heterogeneous multi-system, supporting an AMP system architecture combining Linux, RTOS, and Bare-metal, allowing for application structures of 2xCortex-A7 Linux + 1xCortex-A7 RTOS + Cortex-M0 HAL or 3xCortex-A7 RTOS + Cortex-M0 HAL. (Provides standard RPMsg inter-core communication scheme)

Project	Bind real-time core without participating in other system scheduling	Turn off one A7 core, bind real-time core without participating in other system scheduling
CPU	3*Cortex-A7	2*Cortex-A7
CPU Frequency	1.3GHz	1.3GHz
DDR	16bit DDR3 800MHz	16bit DDR3 800MHz
L1 Cache	16 KB I/D	16 KB I/D
L2 Cache	128 KB	128 KB
Preempt-RT (Pressure Delay)	≈62us	≈62us
Xenomai (Pressure Delay)	≈68us	≈68us

Pressure: Using stress-ng for load testing

Bind real-time core: cyclictest runs on isolated core

Supports EtherCATIgH and has been specially optimized for real-time performance testing, achieving 1ms control with a jitter delay of 90us.

Figure 5 RK3506 AMP Multi-System Solution

Scenario 4: Industrial Handheld Devices

Based on the HMI solution, combined with excellent power consumption control strategies, this product is very suitable for small handheld airport scenarios. RK3506 has low power consumption under full load and minimal temperature rise.

Figure 6 Standby Power Consumption Performance

Wangxiang Aoke has launched the postage hole RK3506 core board and RK3568 card computer, exploring more industry scenarios with you!

·END·

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