I worked more than 3 years in STMicroelectronics, and I developed the SD card driver (STM32 Cube) for the STM32F4 family. I have knowledge of all families and both the STM32 StandardPeriph library and STM32Cube library. I have knowledge of many IPs like: system IPs, external memories interfaces (FMC, SDIO), external memories (SRAM,SDRAM,NOR,NAND..), EvalBoard development and testing, Communication IPs (I2C, SPI, QSPI..)