From 8148d7f6ac2b00fcc5f41277ea0a01e093e1a753 Mon Sep 17 00:00:00 2001 From: alanbjohnston Date: Sun, 24 Feb 2019 11:33:26 -0500 Subject: [PATCH] created for c code reading of ina219 current sensors --- afsk/ina219.h | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 afsk/ina219.h diff --git a/afsk/ina219.h b/afsk/ina219.h new file mode 100644 index 00000000..007a9b20 --- /dev/null +++ b/afsk/ina219.h @@ -0,0 +1,79 @@ +/* + * Modified from https://github.com/foglamp/foglamp-south-ina219/blob/develop/include/ina219.h + * + * FogLAMP south service plugin + * + * Copyright (c) 2018 Dianomic Systems + * + * Released under the Apache 2.0 Licence + * + * Author: Mark Riddoch + */ +#/** + * Values for the gain setting + */; +enum { + INA219_CONFIG_GAIN_40MV = 0x0000, // 40mV Range + INA219_CONFIG_GAIN_80MV = 0x0800, // 80mV Range + INA219_CONFIG_GAIN_160MV = 0x1000, // 160mV Range + INA219_CONFIG_GAIN_320MV = 0x1800, // 320mV Range +}; + +enum +{ + INA219_CONFIG_BVOLTAGERANGE_16V = 0x0000, // 0-16V Range + INA219_CONFIG_BVOLTAGERANGE_32V = 0x2000, // 0-32V Range +}; + +#define INA219_CONFIG_BADCRES_MASK 0x0780 // ADC Resulotion Mask +enum +{ + INA219_CONFIG_BADCRES_9BIT = 0x0000, // 9-bit bus res = 0..511 + INA219_CONFIG_BADCRES_10BIT = 0x0080, // 10-bit bus res = 0..1023 + INA219_CONFIG_BADCRES_11BIT = 0x0100, // 11-bit bus res = 0..2047 + INA219_CONFIG_BADCRES_12BIT = 0x0180, // 12-bit bus res = 0..4097 +}; + +#define INA219_CONFIG_SADCRES_MASK 0x0078 // Mask for shunt ADC resolution bits +enum +{ + INA219_CONFIG_SADCRES_9BIT_1S_84US = 0x00, // 1 x 9-bit shunt sample + INA219_CONFIG_SADCRES_10BIT_1S_148US = 0x08, // 1 x 10-bit shunt sample + INA219_CONFIG_SADCRES_11BIT_1S_276US = 0x10, // 1 x 11-bit shunt sample + INA219_CONFIG_SADCRES_12BIT_1S_532US = 0x18, // 1 x 12-bit shunt sample + INA219_CONFIG_SADCRES_12BIT_2S_1060US = 0x48, // 2 x 12-bit shunt samples averaged together + INA219_CONFIG_SADCRES_12BIT_4S_2130US = 0x50, // 4 x 12-bit shunt samples averaged together + INA219_CONFIG_SADCRES_12BIT_8S_4260US = 0x58, // 8 x 12-bit shunt samples averaged together + INA219_CONFIG_SADCRES_12BIT_16S_8510US = 0x60, // 16 x 12-bit shunt samples averaged together + INA219_CONFIG_SADCRES_12BIT_32S_17MS = 0x68, // 32 x 12-bit shunt samples averaged together + INA219_CONFIG_SADCRES_12BIT_64S_34MS = 0x70, // 64 x 12-bit shunt samples averaged together + INA219_CONFIG_SADCRES_12BIT_128S_69MS = 0x78, // 128 x 12-bit shunt samples averaged together +}; + +#define INA219_CONFIG_MODE_MASK 0x0007 // Operating Mode Mask +enum { + INA219_CONFIG_MODE_POWERDOWN = 0x0000, + INA219_CONFIG_MODE_SVOLT_TRIGGERED = 0x0001, + INA219_CONFIG_MODE_BVOLT_TRIGGERED = 0x0002, + INA219_CONFIG_MODE_SANDBVOLT_TRIGGERED = 0x0003, + INA219_CONFIG_MODE_ADCOFF = 0x0004, + INA219_CONFIG_MODE_SVOLT_CONTINUOUS = 0x0005, + INA219_CONFIG_MODE_BVOLT_CONTINUOUS = 0x0006, + INA219_CONFIG_MODE_SANDBVOLT_CONTINUOUS = 0x0007, +}; + +typedef enum { + CONF_16V_400MA, + CONF_32V_1A, + CONF_32V_2A +} INA219_CONFIGURATION; + +/* + * INA219 Registers + */ +#define INA219_REG_CONFIG 0x00 +#define INA219_REG_SHUNTVOLTAGE 0x01 +#define INA219_REG_BUSVOLTAGE 0x02 +#define INA219_REG_POWER 0x03 +#define INA219_REG_CURRENT 0x04 +#define INA219_REG_CALIBRATION 0x05