Michael,
The same general principle applies using more than one GPIO pin.
At worst, you can add an I2C I/O expander and set unique ID's using them.
Rodney
On 06/09/2016 09:15 AM, Michael Eder wrote:
Thanks but I actually have more than two FTDI devices
On Thu, Jun 9, 2016 at 12:07 PM, Rodney Sinclair
<[email protected] <mailto:[email protected]>> wrote:
Use one of the GPIO pins connected to GND or power on the FTDI
device as a front/back indicator.
Rodney
On 06/09/2016 08:55 AM, Michael Eder wrote:
I have a question related to how one can distinguish between the
devices when there are multiples of the same FTDI devices plugged
into a USB hub?
I suspect the answer is to program the FTDI devices with a unique
name in its EEPROM, but is there a way short of that how I can
identify what device is plugged in where?
Simple example. I have two temperature I2C devices that have the
same fixed I2C address. I need to use two FTDI devices to talk
to each of these. One I2C device is in the front of my boat
the other in the back. If I always plugged the front FTDI USB
device in the same port on the USB hub and the back one also into
a particular port could I that way know which device is which
and, if so, how can I identify the usb port with the libftdi?
Would this mechanism work even if I plugged and unplugged the
devices in at different times, but always to their assigned port.
Any suggestions how to best do this greatly appreciated.
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