Hi Beck,

Along with the changes you mentioned, a few more modifications are needed.

1. The spike in the output block now has parameters that should match the parameters in the emit_spike() function: https://nestml.readthedocs.io/en/latest/nestml_language/nestml_language_concepts.html#event-attributes
In your case, it would be:
output: 
        spike(weight real, delay ms)

2. The integrate_odes() function should be called from the synapse. So a corresponding update block should be added in the synapse:
update:
integrate_odes()

3. The decorator @nest::delay is no longer required. However, the delay parameter and the weight must be provided to the generate_target() function via the codegen_opts: https://nestml.readthedocs.io/en/latest/running/running_nest.html#dendritic-delay-and-synaptic-weight

codegen_opts={"neuron_synapse_pairs": [{"neuron": “<neuron_model>",
                                      "synapse": "dopamine_synapse",
                                      "vt_ports": ["dopa_spikes"]}],
              "delay_variable": {"dopamine_synapse": "d"},
              "weight_variable": {"dopamine_synapse": "w"}})

Hope this helps!

Regards,
Pooja

On 15. Jan 2025, at 18:19, Beck Strohmer <bstrohmer@gmail.com> wrote:

Hi Pooja,
Thanks for the response. I have upgraded NESTML and now the error seems to be from new syntax. I changed my nestml file to say "model" instead of "synapse" and I changed to "emit_spike" (instead of "deliver_spike"). However, this is producing an error. I have attached both the updated nestml file and the error as printed to terminal.

Thanks!

On Wed, Jan 15, 2025 at 3:42 PM Babu, Pooja <p.babu@fz-juelich.de> wrote:
Hi Beck,

Thanks for writing in. From the errors, it looks like you might be using an older version of NESTML. We recently released version 8.0.0: https://github.com/nest/nestml/releases/tag/v8.0.0

Could you please update to the new version and try again? You could do that with the command “pip install nestml —upgrade”

Please let us know how you fare.

Regards,
Pooja

On 15. Jan 2025, at 12:31, Beck Strohmer <bstrohmer@gmail.com> wrote:

Hi,
I am trying to create a dopamine modulated synapse using NESTML. You can find the nestml file and the file for creating the neuron attached. I am using NEST version 3.8.0 and running within a conda environment (v. 24.1.2). 

I get a make error in the end so the files are created except for the .so file that I need for loading the model. I attached the terminal error for further details. Has anyone else had this issue? How were you able to resolve it?

Thanks for any advice!

Best,
Beck
<compile_error.txt><dopamine_synapse_NEW.nestml><create_gap_dopamod_synapse.py>_______________________________________________
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<terminal_compile_error.txt><dopamine_synapse_NEW.nestml>_______________________________________________
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