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ina260-spin

This is a P8X32A/Propeller 1, P2X8C4M64P/Propeller 2 driver object for the TI INA260 Precision Current and Power monitor IC

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 up to 400kHz, with alternate address support
  • Read manufacturer ID, die ID
  • Read shunt current, bus voltage, calculated power
  • Set operation mode (one-shot/triggered, continuous, power-down)
  • Set conversion time for voltage and current measurements
  • Set measurement averaging samples
  • Set interrupt/alert source, threshold, active state (open-collector high/low), latching
  • Read flags: conversion ready, power overflowed

Requirements

P1/SPIN1:

  • spin-standard-library
  • P1/SPIN1: 1 extra core/cog for the PASM I2C engine (none if the bytecode-based engine is used)
  • sensor.power.common.spinh (provided by spin-standard-library)

P2/SPIN2:

  • p2-spin-standard-library
  • sensor.power.common.spin2h (provided by 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 OK
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

  • Interrupt threshold parameter is currently a word, which isn't very intuitive
  • Doesn't support high-speed mode (2.94MHz)