ftdi:ft-x - This interface does not support MPSSE

[pacmac]

Hi, firstly thanks for developing this.

I'm obviously using this for the first time, and are attempting to test I2C communications.

It seems that the device is detected, but I am unable to configure i2c, with the error regarding MPSSE, is this something that can be configured or is it a compatibility issue ?

>>> Ftdi.show_devices()
Available interfaces:
  ftdi://ftdi:ft-x:D200B4HD/1   (FT200X USB I2C)

>>>
>>>
>>> i2c.configure('ftdi://ftdi:ft-x:D200B4HD/1')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.8/site-packages/pyftdi/i2c.py", line 498, in configure
    frequency = self._ftdi.open_mpsse_from_url(url, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/pyftdi/ftdi.py", line 635, in open_mpsse_from_url
    return self.open_mpsse_from_device(device, interface,
  File "/usr/local/lib/python3.8/site-packages/pyftdi/ftdi.py", line 737, in open_mpsse_from_device
    raise FtdiMpsseError('This interface does not support MPSSE')
pyftdi.ftdi.FtdiMpsseError: This interface does not support MPSSE
>>>

[eblot]

Hi,

FT-200X is not an I2C master. It is a crap I2C slave, which acts like a sort of uber-limited bridge between an I2C bus and a USB bus: https://ftdichip.com/products/ft200xd/

It does not support the MPSEE protocol (used by FT-232 devices) that PyFtdi support. There is no plan to support FT-200X in PyFtdi, as it is not related to MPSEE, and its usage is more than limited, unfortunately.

Are you looking for an I2C master or an I2C slave device?

[pacmac]

Thanks, that explains it, did not realise it was a slave only device. I was looking for a master to use to replace a solution that I designed some time ago on a micropython board so that I could run it from my mac instead.

The listing where I purchased it states "FT232H Multifunction High-Speed USB to JTAG UART/ FIFO SPI/ I2C CJMCU Module" however it is clearly not this !

I will order another device

Thanks again.

[sifive-eblot]

The FT232H is the best if you need a single function at once, yes.

Beware that chinese vendors advertise for many devices at once, but you need to be very careful when you pick a "color", i.e. the actual model of a device.

A FT232H board is about €10 (+/- 1€ depending on the shipping fee).

FTDI devices are incredibly expensive... and not bug free :-)

[pacmac]

Thanks, I already have ordered a few adafruit 2264 https://www.adafruit.com/product/2264 from digikey.

The listing I purchased from originally stating: "FT232H Multifunction High-Speed USB to JTAG UART/ FIFO SPI/ I2C CJMCU Module" - was a single listing, there was no option to select, price was about USD5.00, definitely a con.