====== cfnet-fs I²C Mode ======

{{ :modularpi:modularpi_main-system.png }}

For I²C mode, run `cfnet-fs` as shown below:
<code>
cfnet-fs {mount-point} {i2c1-device} {i2c2-device} {i2c3-device}
</code>

For the [[:modularpi:index|ModularPi]]:

<code>
cfnet-fs /tmp/cfnet-fs /dev/i2c-0 /dev/i2c-1 /dev/i2c-3
</code>
  * ''mount-point'' can be any directory the user running the program has access to.
  * ''/dev/i2c-0'' is the I²C port for analog modules
  * ''/dev/i2c-1'' is the I²C port digital input modules
  * ''/dev/i2c-3'' is the I²C port digital output modules

The [[:modularpi:index|ModularPi]] must have the following in its ''/boot/firmware/config.txt'' file for the I²C ports to work.
<code>
[pi5]
pciex1=on
dtoverlay=uart0-pi5
dtoverlay=uart4-pi5
dtoverlay=i2c0-pi5,pins_8_9,baudrate=100000
dtoverlay=i2c1-pi5,pins_2_3,baudrate=1000000
dtoverlay=i2c3-pi5,pins_22_23,baudrate=1000000
</code>

NOTE: I²C port 0 can also be configured for 1MHz, if you are only using CFADC-A4L and CFDAC-2V modules on that port.

[[cfnet-fs:getting_started:index|Back]]