I have this thing: C232HM-DDHSL-0 - FTDI
It looks like it should work here: https://ftdichip.com/wp-content/uploads/2023/07/DS_C232HM_MPSSE_CABLE-.pdf but the documentation is sparse. Is the mode that I want here SPI?
Any advice would be appreciated, even if that advice is to buy a new serial adapter.
That’s the pinout for the C232HD, that is an UART (universal asynchronous receiver transmitter)
Yours, the C232HM is a MPSSE (multi-protocol synchronous serial engine).
It won’t work (at least out of the box)
Where did you get thisimage from?
So, when I connect the cable lsusb tells me:
Bus 001 Device 011: ID 0403:6014 Future Technology Devices International, Ltd FT232H Single HS USB-UART/FIFO IC
and that’s from the datasheet for that from here: USB IC Data Sheets - FTDI → https://ftdichip.com/wp-content/uploads/2023/09/DS_FT232H.pdf
So, I connected
SOP2 - Red
GND - Black
RST - Grey
RX - Orange
TX - Yellow
and it seems to work \o/
(That’s just the result of tracing the UART table from the FT232H datasheet to the outputs of the cable.)
Yeah, the FT232H is the chip itself.
The C232HM is the cable with the chip with some kind of configuration (MPSSE), that supports I2C, SPI and other protocols.
The C232HC is another cable with that chip with UART configuration.
Maybe it is possible to use the -HM as UART bridge. You could tr… Okay I just saw, that you made it work. Yayyyy 
