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lm75-spin

This is a P8X32A/Propeller driver object for the Maxim LM75 Digital Temperature Sensor and Thermal Watchdog (I2C).

IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.

Salient Features

  • I2C connection at ~30kHz (P1: SPIN I2C), up to 400kHz (P1: PASM I2C, P2)
  • Read die temperature
  • Set overtemperature (assert) and hysteresis (clear) interrupts
  • Set interrupt active high/low, comparator or interrupt mode
  • Alternate I2C addresses

Requirements

P1/SPIN1:

  • spin-standard-library
  • 1 extra core/cog for the PASM I2C engine (none if the SPIN I2C engine is used)
  • sensor.temp_rh.common.spinh (source: spin-standard-library)

P2/SPIN2:

  • p2-spin-standard-library
  • sensor.temp_rh.common.spin2h (source: p2-spin-standard-library)

Compiler Compatibility

Processor Language Compiler Backend Status
P1 SPIN1 FlexSpin (6.9.4) Bytecode OK
P1 SPIN1 FlexSpin (6.9.4) Native/PASM OK
P2 SPIN2 FlexSpin (6.9.4) NuCode Untestedd
P2 SPIN2 FlexSpin (6.9.4) Native/PASM2 OK

(other versions or toolchains not listed are not supported, and may or may not work)

Limitations

  • TBD