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);

Components/VPS2535H/VPS2535H.h@7:10e489682b80, 2017-05-09 (annotated)

Committer:: Davidroid
Date:: Tue May 09 09:37:03 2017 +0000
Revision:: 7:10e489682b80
Parent:: Components/vps2535h/vps2535h_class.h@6:c313d3a5c61a
Child:: 8:73df2d2b721c

Aligned to ARM mbed coding style.

Who changed what in which revision?

User	Revision	Line number	New contents of line
grussian	0:c175921ca7c3	1	/**
grussian	4:715dcaf74418	2	*******************************************************************************
Davidroid	7:10e489682b80	3	* @file VPS2535H.h
grussian	5:b683e69b181c	4	* @author ADG
grussian	4:715dcaf74418	5	* @version V1.0.1
grussian	5:b683e69b181c	6	* @date 01-July-2016
grussian	5:b683e69b181c	7	* @brief vps2535h module driver.
grussian	4:715dcaf74418	8	* This file provides firmware functions to manage the following
grussian	5:b683e69b181c	9	* functionalities of the vps2535h power switch:
grussian	4:715dcaf74418	10	* + Initialization and de-initialization functions
grussian	4:715dcaf74418	11	* + Diagnostic Sense Pin Configuration
grussian	4:715dcaf74418	12	* + Get Sense Diagnostic Values
grussian	4:715dcaf74418	13	*******************************************************************************
grussian	4:715dcaf74418	14	* @attention
grussian	4:715dcaf74418	15	*
grussian	6:c313d3a5c61a	16	* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
grussian	4:715dcaf74418	17	*
grussian	4:715dcaf74418	18	* Redistribution and use in source and binary forms, with or without modification,
grussian	4:715dcaf74418	19	* are permitted provided that the following conditions are met:
grussian	4:715dcaf74418	20	* 1. Redistributions of source code must retain the above copyright notice,
grussian	4:715dcaf74418	21	* this list of conditions and the following disclaimer.
grussian	4:715dcaf74418	22	* 2. Redistributions in binary form must reproduce the above copyright notice,
grussian	4:715dcaf74418	23	* this list of conditions and the following disclaimer in the documentation
grussian	4:715dcaf74418	24	* and/or other materials provided with the distribution.
grussian	4:715dcaf74418	25	* 3. Neither the name of STMicroelectronics nor the names of its contributors
grussian	4:715dcaf74418	26	* may be used to endorse or promote products derived from this software
grussian	4:715dcaf74418	27	* without specific prior written permission.
grussian	4:715dcaf74418	28	*
grussian	4:715dcaf74418	29	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
grussian	4:715dcaf74418	30	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
grussian	4:715dcaf74418	31	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
grussian	4:715dcaf74418	32	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
grussian	4:715dcaf74418	33	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
grussian	4:715dcaf74418	34	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
grussian	4:715dcaf74418	35	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
grussian	4:715dcaf74418	36	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
grussian	4:715dcaf74418	37	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
grussian	4:715dcaf74418	38	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
grussian	4:715dcaf74418	39	*
grussian	4:715dcaf74418	40	******************************************************************************
grussian	4:715dcaf74418	41	*/
grussian	4:715dcaf74418	42
Davidroid	7:10e489682b80	43
grussian	0:c175921ca7c3	44	/* Define to prevent recursive inclusion -------------------------------------*/
Davidroid	7:10e489682b80	45
grussian	5:b683e69b181c	46	#ifndef __VPS2535H_CLASS_H
grussian	5:b683e69b181c	47	#define __VPS2535H_CLASS_H
grussian	3:9edf6b8f3b2f	48
Davidroid	7:10e489682b80	49
grussian	0:c175921ca7c3	50	/* Includes ------------------------------------------------------------------*/
Davidroid	7:10e489682b80	51
grussian	0:c175921ca7c3	52	#include "mbed.h"
grussian	0:c175921ca7c3	53	#include "PowerSwitch.h"
Davidroid	7:10e489682b80	54	#include "VPS2535H_def.h"
grussian	3:9edf6b8f3b2f	55
grussian	3:9edf6b8f3b2f	56
grussian	0:c175921ca7c3	57	/* Classes -------------------------------------------------------------------*/
Davidroid	7:10e489682b80	58
grussian	5:b683e69b181c	59	/** Class representing a VPS2535H power switch component
grussian	0:c175921ca7c3	60	*/
grussian	3:9edf6b8f3b2f	61
grussian	5:b683e69b181c	62	class VPS2535H : public PowerSwitch {
grussian	0:c175921ca7c3	63
grussian	0:c175921ca7c3	64	public:
grussian	0:c175921ca7c3	65	DigitalOut In_1,In_2,Fr_Stby;
grussian	0:c175921ca7c3	66
grussian	0:c175921ca7c3	67	/** Constructor
grussian	3:9edf6b8f3b2f	68	* @param[in] input Pin for the power switch
grussian	3:9edf6b8f3b2f	69	* @param[out] sense1 and sense2, outputs from Ch1 and Ch2
grussian	3:9edf6b8f3b2f	70	* @param[in] vref, reference voltage
grussian	3:9edf6b8f3b2f	71	* @param[in] rsense, sense resistor ouside of chip
grussian	3:9edf6b8f3b2f	72	* @param[in] rd1, upper partitor resistor (=R6 in schematic) to protect ADC
grussian	3:9edf6b8f3b2f	73	* @param[in] rd1, lower partitor resistor (=R7 in schematic) to protect ADC
grussian	3:9edf6b8f3b2f	74	*/
grussian	5:b683e69b181c	75	VPS2535H(PinName in1, PinName in2, PinName frStdby,
grussian	0:c175921ca7c3	76	PinName sense1, PinName sense2, float vref,float rsense,float rd1,float rd2):
grussian	0:c175921ca7c3	77	PowerSwitch(),
grussian	0:c175921ca7c3	78	In_1 (in1),
grussian	0:c175921ca7c3	79	In_2 (in2),
grussian	0:c175921ca7c3	80	Fr_Stby(frStdby),
grussian	0:c175921ca7c3	81	V_REF(vref),
grussian	0:c175921ca7c3	82	R_SENSE(rsense),
grussian	0:c175921ca7c3	83	R_D1(rd1),
grussian	0:c175921ca7c3	84	R_D2(rd2),
grussian	0:c175921ca7c3	85	CurrentSense1(sense1),
grussian	0:c175921ca7c3	86	CurrentSense2(sense2)
Davidroid	7:10e489682b80	87	{
grussian	3:9edf6b8f3b2f	88	In_1 = In_2 = Fr_Stby = 0;
grussian	0:c175921ca7c3	89	}
grussian	3:9edf6b8f3b2f	90
grussian	0:c175921ca7c3	91	/** Destructor
grussian	0:c175921ca7c3	92	*/
grussian	5:b683e69b181c	93	virtual ~VPS2535H() {}
grussian	0:c175921ca7c3	94
grussian	0:c175921ca7c3	95	/* Interface Methods */
Davidroid	7:10e489682b80	96	virtual int init(void *init_struct);
Davidroid	7:10e489682b80	97	virtual int close(void);
Davidroid	7:10e489682b80	98
grussian	2:06d0eb54630a	99	/* Getting the ID of the component */
Davidroid	7:10e489682b80	100	virtual int read_id(uint8_t *id) { return (int) 235; }
Davidroid	7:10e489682b80	101
grussian	0:c175921ca7c3	102	/* Provide Ch current w/o checking status of convertion */
Davidroid	7:10e489682b80	103	virtual float get_current(int Ch);
Davidroid	7:10e489682b80	104
grussian	0:c175921ca7c3	105	/* Provide Ch current Value with status of convertion */
Davidroid	7:10e489682b80	106	IPS_StatusTypeDef VPS2535H_get_secure_current_sense(IPS_HandleTypeDef *hips);
Davidroid	7:10e489682b80	107
grussian	3:9edf6b8f3b2f	108
grussian	3:9edf6b8f3b2f	109	protected:
Davidroid	7:10e489682b80	110	IPS_StatusTypeDef VPS2535H_close(void);
Davidroid	7:10e489682b80	111	IPS_StatusTypeDef VPS2535H_init(void);
Davidroid	7:10e489682b80	112	IPS_StatusTypeDef VPS2535H_get_sense_channel_diagnostic(IPS_HandleTypeDef *);
grussian	3:9edf6b8f3b2f	113
grussian	3:9edf6b8f3b2f	114	private:
grussian	0:c175921ca7c3	115	const float V_REF; // Reference voltage for V-sense measurement
grussian	0:c175921ca7c3	116	const float R_SENSE; // R-sense value depending on resistor connected to V-sense output
grussian	0:c175921ca7c3	117	const float R_D1; // R_D1 upper divisor partitor resistor (=R6 in schematic)
grussian	0:c175921ca7c3	118	const float R_D2; // R_D2 lower divisor partitor resistor (=R7 in schematic)
grussian	0:c175921ca7c3	119	AnalogIn CurrentSense1; // V-Sense Output from Ch1
grussian	0:c175921ca7c3	120	AnalogIn CurrentSense2; // V-Sense Output from Ch2
grussian	0:c175921ca7c3	121	};
grussian	5:b683e69b181c	122	#endif /* __VPS2535H_CLASS_H */
Davidroid	7:10e489682b80	123
Davidroid	7:10e489682b80	124
grussian	3:9edf6b8f3b2f	125	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/
grussian	3:9edf6b8f3b2f	126