ESP32: When Is A P4 A P4, But Not The P4 You Thought It Was

ESP32-P4 revision 3.0 gains new power rail, requires new PCB design and firmware

Espressif’s ESP32-P4 revision 3.0 and greater converts pin 54 of the chip from NC (non-connected) to a power rail (VDD_HP_1), requires a few extra passives, and an updated firmware. Espressif Systems first unveiled the 400 MHz ESP32-P4 dual-core RISC-V SoC in January 2023, and the official ESP32-P4-Function-EV development board was launched in August 2024, with commercial solutions slowly ramping up last year. You’d think the silicon and related…

ESP32-P4 revision 3.0 gains new power rail, requires new PCB design and firmware - CNX Software

Espressif’s ESP32-P4 revision 3.0 and greater converts pin 54 of the chip from NC (non-connected) to a power rail (VDD_HP_1), requires a few extra passives, and an updated firmware. Espressif Systems first unveiled the 400 MHz ESP32-P4 dual-core RISC-V SoC in January 2023, and the official ESP32-P4-Function-EV development board was launched in August 2024, with commercial solutions slowly ramping up last year. You’d think the silicon and related…

ESP32: When Is A P4 A P4, But Not The P4 You Thought It Was

We’re used to electronic parts of the same type staying predictably the same, sometimes over many years. An early Z80 from the mid 1970s can be exchanged with one from the end of production a…