STM32F722 port attempt

Im trying to port AP for the f722 MCU.
I know the MCU is suboptimal with having only 512kb of flash, but I wanted to play around with a minimalistic build.

so far im trying to create the python hardware database file for the board, by running the “af_parse.py” script - sadly without success as i keep getting following error:

$ scripts/af_parse.py
Error: expected 1 CSV file

i have extracted the datasheet with tabula, and am running the script through the Cygwin terminal.

If anyone would help me out, or at least point me in the right direction it would be greatly appreciated.

AP_Periph will fit in 512k but nothing else.