Even using the USB on the STM32 would be a bottleneck in this case; [Linas] is moving data out of the processor using only the DMA controller – using the USB on the STM32 would eat up processor ...

Deciding to go for a full digital design for the circuitry, the peripheral is based off of a MEMS microphone and an STM32 microcontroller doing the heavy lifting between it and a USB connection.

The PD controller on-board the STM32 MCU performs as a UCSI platform policy manager (PPM). The necessary USB Type-C and Power Delivery (UCPD) peripheral is available in various STM32 MCUs. The ...

STMicroelectronics has released C libraries to control its three USB Type-C Power Delivery port-protection ICs, for sink or source applications, or both.