I'm trying to do a FW upgrade on the STM32F427IGH6 chip, having an Infineon XMC4800-F144K2048 chip as the master and the STM chip as the slave. They're connected via I2C; I've confirmed that the lines are connected properly, as I'm able to send data ...

Currently, I am seeing no signals on the SCLK and MISO/MOSI lines on the SPI4 lines from a STM32F427 chip to a SPI flash during an attempted read/write. At the moment, I've done the following:Enable GPIO clock (HB1) and SPI clock (PB2)Configure CS:pi...