Wielding Stimulus Controllers 🤺

A pythonic API for controlling the 8480 is coming soon! For now, please use the low-level API.

Low-Level Details ⚙️

For configuring the 8480, several special 8-bit vectors are used (pass these to the low-level API as unsigned integers).

Stimulus Config Bit Vector Format

Bit Index	Name	Description
0 (LSB)	Opto / Electrical	0 for electrical stimulus, 1 for optical stimulus.
1	Monophasic / Biphasic	0 for monophasic only on the selected channel, 1 for biphasic. This will use both channels for optical stimulus.
2	Simultaneous	0 for standard operation only on the selected channel, 1 for simultaneous operation on both opt channels. Not applicable for electrical stimulation.
3-7	Unused (write as 0)	.

TTL Config Bit Vector Format

Bit Index	Name	Description
0 (LSB)	Rising / Falling Edge	0 for TTL events to be triggered by a rising edge, 1 for falling edge triggering.
1	Stimulus Triggering	0 for just TTL event notifications, 1 to use TTL inputs as triggers for the corresponding stimulus channel (TTL0 = CH0, TTL1 = CH1).
2-6	Unused (write as 0)	.
7	TTL Input / Sync	0 for normal TTL operation as an input, 1 to have TTL pin operate as a sync output, and input events are disabled.

Sync Config Bit Vector Format

Bit Index	Name	Description
0 (LSB)	Sync Level	0 for sync line to be low during stimulus, 1 for sync line to be high during stimulus.
1	Sync Idle	0 for sync to idle the opposite of its active state, 1 to sync to idle tristate (High-Z). Tristate idling is normally only required when connecting to an 8401 so it does not interfere with preamp detection.
2	Signal / Trigger	0 to have sync function as an indicator that a stimulus is in progress. 1 to have sync function as an input trigger like TTL0 (trigger stimulus on ch0 on high input).
3-7	Unused (write as 0)	.