Enabling Multi-image Applications with AMP Support on ESP32
summary
Claims concrete multi-image AMP support on Zephyr for ESP32 S3 with OpenAMP / RPMsg and IPM over shared RAM as the communication stack. Demonstration uses an S3 boxlight, PWM motor, temp sensor and SPI display where CPU0 executes from flash handling Wi‑Fi and MQTT and CPU1 runs from RAM doing motor control and sensing; messages flow and MQTT publishes work in real time. Current limits: 16KB IPM region, per‑peripheral sharing blocked, linker scripts hardcoded and MCUboot multiboot support still in progress.
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chapters (15)
- 0:00Multi-image AMP on ESP32
- 1:47ESP32 dev status
- 3:32ESP32 family & modules
- 3:56Why multi-image AMP
- 5:01Benefits of asymmetric multi-processing
- 7:12AMP in Zephyr overview
- 9:22ESP32 AMP details
- 12:37Demo setup
- 15:54Project structure
- 18:21Live demo
- 20:29Logging & MQTT
- 22:13Code walkthrough
- 25:25AMP config
- 27:33Next steps
- 29:40Q&A
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