README.md

headstage-256

Serialized, multifunction headstage for large rodents. Supports both 128 or 256 channels. Designed to interface with eib-128 or eib-256

Schematic

Gerber Files

{% include gerber_layers.md %}

Bill of Materials

The BOM is located on this google sheet

FPGA Pinout

The FPGA pinout is located on this google sheet

Connector Pinout

The headstage connector pinouts (ADC input mapping, stimulation connections, etc) ares are located on these google sheets:

• eib-128 channel mapping
• eib-256 channel mapping

Expansion Boads

headstage-256 has two exposed headers that supply power and general purpose analog or digital IO to expand its functionality. Subdirectories with the prefix 'expansion` are boards that fit into these headers to supply various auxiliary functions. These include:

1. expansion-uphone: ultrasonic micrphone expansion board
2. expansion-long-range: large active area light house receiver board to expand 3D tracking range by several meters.
3. expansion-debug: pinout GPIO to large 0.1" pitch headers.