Save :download:`hhkchan.mod <code/hhkchan.mod>` into an empty directory.
For all versions of NEURON on MacOS and Linux, and NEURON 7.7+ on Windows:
In a terminal, navigate to the folder containing the :file:`hhkchan.mod` file and run the shell script:
nrnivmodl
On a PC using a version of NEURON before 7.7:
Launch
mknrndll
from the icon in the NEURON program group.Navigate to the directory containing the desired mod files.
Select "Make nrnmech.dll" and the "mknrndll" script will create a nrnmech.dll file which contains the HHk model.
Using the location of :file:`hhkchan.mod` as the working directory, start NEURON by typing python
and then
from neuron import h, gui
Bring up a single compartment model with surface area of 100 µm2 (:menuselection:`Build --> single compartment`) and toggle the HHk button in the Distributed Mechanism Inserter ON. Verify that the new HHk model (along with the Na portion of the built-in HH channel) produces the same action potential as the built-in HH channel (using both its Na and K portions).