2353549_en-US

MC33774A driver for MC33664ATL1EG iso-spi communication with STM32

Hello! Please tell me whether an MC33774A driver is available for the MC33664ATL1EG iso-spi communication with STM32?

THX!

Re: MC33774A driver for MC33664ATL1EG iso-spi communication with STM32

Hello Edzus,

We can provide the MC33774A software driver as part of our BMS SDK.

For the MC33664ATL1EG, it is a physical-layer transceiver converting the MCU’s SPI bitstream to/from the isolated bus and back to SPI. There is typically no separate high-level “driver” beyond configuring the MCU SPI interfaces and generating the correct frames.

Please note that MC33664 uses a dual-SPI architecture (separate TX SPI and RX SPI pins). On STM32 this usually requires two SPI peripherals (TX as master, RX as slave) or an equivalent implementation.

BRs, Tomas

Re: MC33774A driver for MC33664ATL1EG iso-spi communication with STM32

Dual SPI