# Feed(Vfeed, Vfs, Rfeed) hash function

Valid for use with hash command: Thermistor

This hash function defines the electrical conditions applied to the thermistor

Vfeed is the feed voltage. Unless you are doing something out of the ordinary, this will be sourced by the SPLat controller or an add-on SPice board either from an analog output or as part of a dedicated thermistor port. See the data for the SPLat board you are connecting the thermistor to.

Rfeed is the feed resistor, usually also determined by the board. Typical values are 10000 or 10250.

Vfs is the full scale voltage range of the analog input. Again, documented with the specific board, though usually 5V.

The thermistor hash command does not set the thermistor drive voltage. On the MMi202 and SL100 you need to initialise the thermistor drive voltage yourself.

MMi202 thermistor drive voltage SL100 thermistor drive voltage (Look near the bottom of the respective pages)