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Some quick observations about the ESP32-P4 PCB:
- The PSRAM is integrated into the SoC and is faster than other ESP32s.
- The MIPI DSI (LCD) output is a new bit of hardware and software. It allocates the frame buffer in PSRAM and needs a new API to flush the cache properly.
- It's faster than the ESP32-S3, but not dramatically. The STM32H7 is still much faster than the ESP32-P4
- It has some new 2D DMA I need to explore; it might allow some interesting graphics acceleration.