Firmware to manage X-Nucleo-IPS02A1 (24V) Intelligent Power Switch.

Dependents:   HelloWorld_IPS02A1

Fork of X_NUCLEO_IPS02A1 by ST Expansion SW Team

X_NUCLEO_IPS02A1 24V Intelligent Power Switch (IPS) Nucleo Expansion Board Firmware Package

Introduction

This firmware package includes Components Device Drivers and Board Support Package for STMicroelectronics X-NUCLEO-IPS02A1 IPS Expansion Board.

Firmware Library

Class X_NUCLEO_IPS02A1 is intended to represent the Intelligent Power Switch expansion board with the same name.

The expansion board is basically featuring by one IP:

  • vps2535h vertical power switch.

It is intentionally implemented as a singleton because only one X-NUCLEO-IPS02A1 at a time might be deployed in a HW component stack. In order to get the singleton instance you have to call class method `Instance()`, e.g.:

// IPS expansion board singleton instance
static X_NUCLEO_IPS02A1 *ips_expansion_board = X_NUCLEO_IPS02A1::Instance();

How to use the firmware package

The basic operations to deal with the firmware pkg and use the IPS are the following :

1) instantiate the X_NUCLEO by calling class method `Instance()`:

// Sensors expansion board singleton instance
static X_NUCLEO_IPS02A1 *sensors_expansion_board = X_NUCLEO_IPS02A1::Instance();

2) Switch-on or Switch-off loads output (Channel 1 or Channel 2) by setting or clearing associated digital input :

            ips_expansion_board.vps2535h.Fr_Stby = 1; // set Fr_Stby pin
            ips_expansion_board.vps2535h.In_1 = 1; // switch-on Channel 1
            ips_expansion_board.vps2535h.In_2 = 0; // switch-off Channle 2 

3) Read Current circulating on Channel 1 or Channel 2 and print on the Terminal

            Multisense_Signal= ips_expansion_board.GetCurrent(CHANNEL_1);
            printf("Current Ch1 = %2.3fA \n\r", Multisense_Signal);
            Multisense_Signal= ips_expansion_board.GetCurrent(CHANNEL_2);
            printf("Current Ch2 = %2.3fA \n\r", Multisense_Signal);
Revision:
0:c175921ca7c3
Child:
2:06d0eb54630a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/vps235h2/vps235h2_class.cpp	Thu Apr 07 13:37:58 2016 +0000
@@ -0,0 +1,159 @@
+/**
+  ******************************************************************************
+  * @file    vps235h2.cpp
+  * @author  APG Mass Market
+  * @version V1.0.0
+  * @date    01-July-2015
+  * @brief   implementatio for VPS235H2 driver class
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "vps235h2_class.h"
+#include "vps235h2.h"
+
+
+/* Methods -------------------------------------------------------------------*/
+/**
+ * @brief  Set VPS235H2 Initialization
+ * @param  VPS235H2 handel structure
+ * @retval IPS_SUCCESS
+ */
+
+int VPS235H2 :: Open(void *init_struct) {
+      VPS235H2_Init();
+      return IPS_SUCCESS; 
+      
+    }
+
+/**
+ * @brief  Close VPS235H2
+ * @param  none
+ * @retval IPS_SUCCESS
+ */
+
+int VPS235H2 :: Close(void) {
+      VPS235H2_Close();
+      return IPS_SUCCESS; 
+    }
+
+
+/* Module Interface */
+/**
+  * @brief  Initializes the VPS235H2 device
+  * @param  none
+  * @retval VPS235H2 status
+  */
+IPS_StatusTypeDef VPS235H2 :: VPS235H2_Init(){
+   Fr_Stby = 1;
+   return IPS_SUCCESS;
+}
+
+/**
+  * @brief  Close (Deinitialize) the VPS235H2 device and used peripheral.
+  * @param  None
+  * @retval VPS235H2 status
+  */
+IPS_StatusTypeDef VPS235H2 :: VPS235H2_Close(){
+    Fr_Stby = 1;
+    return IPS_SUCCESS;
+}
+
+
+/**
+  * @brief  GetSense function gets the value of the Sense power switch output pin 
+  * (for either Ch1 or Ch2) upon IO conversion. It just reads from sense pin
+  * @param  hips: pointer to a VPS235H2_HandleTypeDef structure that contains
+  *                the configuration information for the specified VPS235H2 module.
+  *                Value got from V-sense output is stored in hips->SenseValue
+  *                field. Status of the operation is stored in hips->Status and 
+  *                hips->Status fields
+  * @retval IPS_StatusTypeDef status
+  */
+IPS_StatusTypeDef VPS235H2 :: VPS235H2_GetSenseChannelDiagnostic(IPS_HandleTypeDef *hips){
+  hips->SenseRawValue = 0; //if channel is wrong Sense value is 0
+  hips->GNDSenseRawValue = 0; // VPS235H2 doesn't require GND measurement compensation
+  hips-> Status =IPS_WRONG_CHANNEL;
+  hips->IO_Status = IPS_IO_FAIL;
+  if (hips ->ipsChannel == CHANNEL_1)
+     hips->SenseRawValue = CurrentSense1.read() * V_REF * ((R_D1+R_D2)/(R_D2));
+  if (hips ->ipsChannel == CHANNEL_2)
+     hips->SenseRawValue = CurrentSense2.read() * V_REF * ((R_D1+R_D2)/(R_D2));
+ 
+  hips->IO_Status = IPS_IO_SUCCESS;
+  hips->Status =IPS_SUCCESS;
+  return hips-> Status;
+}
+
+
+/**
+  * @brief  GetSecureCurrentSense  function gets the I-sense switch output pin
+  *         upon ADC conversion. 
+  * @param  hips: pointer to a IPS_HandleTypeDef structure that contains
+  *         the configuration information for the specified VPS235H2 module.
+  *         Value got from V-sense output is stored in hips->SenseValue
+  *         field.
+  *         Status of the operation is stored in hips->Status fields   
+  * @retval IPS status
+  */
+IPS_StatusTypeDef VPS235H2 :: VPS235H2_GetSecureCurrentSense(IPS_HandleTypeDef *hips){
+  
+  if ((hips ->ipsChannel != CHANNEL_1) && (hips ->ipsChannel != CHANNEL_2) ){
+    hips->Status = IPS_WRONG_CHANNEL;
+    return IPS_WRONG_CHANNEL; 
+  }
+  
+  /* Get sense feedback */
+  if ((VPS235H2_GetSenseChannelDiagnostic(hips) == IPS_SUCCESS) && (hips->Status == IPS_SUCCESS)){
+    hips->IValue= K*hips->SenseRawValue/R_SENSE;
+    return IPS_SUCCESS;
+  }
+  else
+    return IPS_FAIL; // see hips->Status
+}
+
+/**
+  * @brief  GetCurrent  function gets the I-sense switch output pin
+  * @param  Ch: Channel number. Possible value are CHANNEL_1 or CHANNEL_2
+  * @retval Current Value
+  */
+float VPS235H2 :: GetCurrent(int Ch){
+ 
+  if (Ch == CHANNEL_1)
+    return (K*CurrentSense1.read()* ((R_D1+R_D2)/(R_D2)) * V_REF/R_SENSE);
+  if (Ch == CHANNEL_2)
+    return (K*CurrentSense2.read()* ((R_D1+R_D2)/(R_D2)) * V_REF/R_SENSE);
+  return 0;
+}
+
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+