BSP+Drivers for EE24+INA

Application/BSP/BSP_INA.c

@@ -0,0 +1,79 @@
+/**
+* @file BSP_INA.c
+* @brief Driver for the BSP INA219 module
+*
+* This file provides a driver for the BSP INA219 module, which is used to measure voltage and current values.
+* The driver includes functions for initializing the module, reading the current and voltage values, and calculating the power value.
+* All of these functions are wrapped in a mutex lock to ensure consistent reading of the values.
+*/
+
+#include "BSP_INA.h"
+#include "i2c.h"
+#include "INA219.h"
+#include "cmsis_os2.h"
+
+#define BSP_INA_I2C &hi2c1
+#define BSP_INA_ADDRESS INA219_ADDRESS | 0x05
+#define BSP_INA_MUTEX_TIMEOUT osWaitForever
+
+static INA219_t hina = {0}; 
+static osMutexId_t ina_lock = NULL;
+
+/**
+* @brief Initializes the INA219 module and sets up the I2C bus.
+*/
+void BSP_INA_Init(void) {
+    INA219_Init(&hina, BSP_INA_I2C, BSP_INA_ADDRESS);
+
+    ina_lock = osMutexNew(NULL);
+    // default done by Init
+    // INA219_Reset(ina219);
+    // INA219_setCalibration_32V_2A(&hina);
+}
+
+
+/**
+* @brief Reads the voltage value from the INA219.
+* 
+* This function acquires a mutex to ensure that the voltage value is read consistently.
+* The mutex is released after the value has been read.
+*
+* @return The voltage value in milli Volts (mV)
+*/
+uint16_t BSP_INA_Voltage() {
+    osMutexAcquire(ina_lock,BSP_INA_MUTEX_TIMEOUT);
+    uint16_t result = INA219_ReadBusVoltage(&hina);
+    osMutexRelease(ina_lock);
+    return result;
+}
+
+/**
+* @brief Reads the current value from the INA219.
+* 
+* This function acquires a mutex to ensure that the current value is read consistently.
+* The mutex is released after the value has been read.
+*
+* @return The current value in 10 milli Amperes (10mA)
+*/
+uint16_t BSP_INA_Current() {
+    osMutexAcquire(ina_lock,BSP_INA_MUTEX_TIMEOUT);
+    uint16_t result = INA219_ReadCurrent(&hina);
+    osMutexRelease(ina_lock);
+    return result;
+}
+
+/**
+* @brief Reads the power value from the INA219.
+* 
+* This function acquires a mutex to ensure that the power value is read consistently.
+* The mutex is released after the value has been read.
+*
+* @return The power value in micro Watts (uW)
+*/
+uint32_t BSP_INA_Power() {
+    osMutexAcquire(ina_lock,BSP_INA_MUTEX_TIMEOUT);
+    uint16_t result_current = INA219_ReadCurrent(&hina);
+    uint16_t result_voltage = INA219_ReadBusVoltage(&hina);
+    osMutexRelease(ina_lock);
+    return (result_current*10) * result_voltage;
+}