here is a link of the script to load configuration of the AD9548 and upload EEPROM from stp file over I2C. The stp file is a setup file of the AD9547/48 Evaluation Software. Some time ago I made a simple debugger that is supported by this software. We use this debugger with test board to prepare stp file. Also it can be generated in demo mode. The script was tested with RPi CM3. GPIO 30 - reset. It works for us. But if somebody find any issues or something else we will appreciate to him. GitHub - sanchox/ad954x-loader: Bash scipt for loading AD9547/AD9548 configuration (.stp) via I2C .
please find attached a script that works on a Raspberry PI board connected to an AD9548. It should do the spi communication with the AD9548. It should be pretty self explanatory.