MPXHZ6250A

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MPXHZ6250A is a pressure sensor IC (20 kPa to 250 kPa) made by NXP Semiconductors. This posting will provide the OSS-ECAL(Open Source Software for Electronic Components Abstraction Layer) for MPXHZ6250A.
MCU interface : ADC

CAUTION:Please be sure to refer to the latest version of the Datasheet prior to actual design.

MPXHZ6250A

General description

The Freescale MPXHZ6250A series sensor integrates on-chip, bipolar op amp circuitry and thin film resistor networks to provide a high output signal and temperature compensation. The small form factor and high reliability of on-chip integration make the Freescale sensor a logical and economical choice for automotive system designers.
The MPXHZ6250A series piezoresistive transducer is a state-of-the-art, monolithic, signal conditioned, silicon pressure sensor. This sensor combines advanced micromachining techniques, thin film metallization, and bipolar semiconductor processing to provide an accurate, high level analog output signal that is proportional to applied pressure.

Feature

Improved Accuracy at High Temperature
Available in Small and Super Small Outline Packages
1.5% Maximum Error over 0° to 85°C
Ideally suited for Microprocessor or Microcontroller-Based Systems
Temperature Compensated from ñ40° to +125°C
Durable Thermoplastic (PPS) Surface Mount Package

Application

Industrial Controls
Engine Control/Liquified Petroleum Gas (LPG)

OSS-ECAL specification

API Function

etSTS oMPXHZ6250A( etCMD cmd, float32* rlt )

Return value
Parameter IN
Parameter OUT

etSTS
etCMD cmd
float32* rlt

OSS-ECAL status code
OSS-ECAL command code
Pressure 20 to 250 [kPa]

etCMD
eCMD_START

Feature :
Command to start AD conversion.

Process :
1. AD conversion start.

Command API function :
etSTS oMPXHZ6250A_START( void )

Return value :
eSTS_FIN
eSTS_ERR_HAL_ADC
eSTS_ERR_COMMAND_CODE
eSTS_ERR_OTHERS_RUN
eSTS_ERR_ADC_OBJECT

NOTE :
Arduino, Mbeb, ModusToolbox not supported.

eCMD_READ

Feature :
Command that reads the AD conversion value, converts the AD conversion value to a characteristic Pressure, and stores the Pressure in rlt.

Process :
1. Read AD conversion value.
2. Convert AD conversion value to Pressure.
Voltage value = (AD conversion value × VDD) / (2^{AD bit} )
Pressure = ((voltage value – voltage offset value) / gain) + Pressure offset value (Min, Max Limit)
3. Store Pressure to rlt.

Command API function :
etSTS oMPXHZ6250A_READ( float32* rlt )

Return value :
eSTS_FIN
eSTS_ERR_MIN
eSTS_ERR_MAX
eSTS_ERR_HAL_ADC
eSTS_ERR_COMMAND_CODE
eSTS_ERR_OTHERS_RUN
eSTS_ERR_ADC_OBJECT

NOTE :
Please execute this API function after starting AD conversion.
Arduino, Mbeb, ModusToolbox not supported.

eCMD_START_READ

Feature :
Command that starts AD conversion, waits for AD conversion to finish, reads out the AD conversion value, converts the AD conversion value to a characteristic Pressure, and stores the Pressure in rlt.

Process :
1. Read AD conversion value.
2. Wait until AD conversion is completed.
3. Read AD conversion value.
4. Convert AD conversion value to Pressure.
Voltage value = (AD conversion value × VDD) / (2^{AD bit} )
Pressure = ((voltage value – voltage offset value) / gain) + Pressure offset value (Min, Max Limit)
5. Store Pressure to rlt.

Command API function :
etSTS oMPXHZ6250A_START_READ( float32* rlt )

Return value :
eSTS_FIN
eSTS_ERR_MIN
eSTS_ERR_MAX
eSTS_ERR_HAL_ADC
eSTS_ERR_COMMAND_CODE
eSTS_ERR_OTHERS_RUN
eSTS_ERR_ADC_OBJECT

NOTE :

Files

Folder^*	File	summary
MPXHZ6250A_HALNAME/sample	sample.c (.cpp)	Sample Application Program
	sample.h	Sample Application Header
MPXHZ6250A_HALNAME	oMPXHZ6250A.c (.cpp)	OSS-ECAL Program for MPXHZ6250A
	oMPXHZ6250A.h	OSS-ECAL Header for MPXHZ6250A
	oss_ecal.h	OSS-ECAL Common Header (Ver 01.00.00 or later)
	user_setting.c (.cpp)	Const and Table of User setting
	user_setting.h	Header of User setting
	readme.md	Readme
	OSS-ECAL Terms of Use.txt	OSS-ECAL Terms of Use

* For HALNAME, please refer to HAL Support.

HAL Support List

MCU/Board manufacturer	HAL	MCU*	Development environment*	HALNAME
Arduino	Arduino 1.8.6	ATmega2560 ATmega328P	Mega 2560 Rev3 Arduino Pro Mini 3.3V	ARDUINO
ARM	Mbed 6.17.0	STM32F401RETx	STM32 Nucleo-64 boards	MBED
Infineon	ModusToolbox HAL Cat1 2.4.3	CYBLE-416045-02	CY8CPROTO-063-BLE PSoC 6 BLE Prototyping Kit	ModusToolbox
NXP	MCUXpresso SDK iMXRT1051B_1052B ksdk2_0	CYBLE-416045-02	IMXRT1050-EVKB	iMXRT1051B1052B
Renesas	SSP 2.4.0	R7FS7G27H3A01CFC	S7G2 SK	SSP
STM	STM32Cube FW_F4 V1.27.1	STM32F401RETx	STM32 Nucleo-64 boards	STM32F4
NXP	AUTOSAR (MCAL)	MPC574XG-100DS	MPC574XG-MB( Motherboard) MPC574XG-100DS(Daughter boards)	MCAL

* MCU and development environment at the time of development. Even if the same HAL is used, different MCUs and development environments may not work together.

OSS-ECAL Download

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HAL	Download　OSS-ECAL Ver
Arduino 1.8.6	Download MPXHZ6250A_ARDUINO_010000.zip 11.70 KB 0 count
Mbed 6.17.0	Download MPXHZ6250A_MBED_010000.zip 11.85 KB 0 count
ModusToolbox HAL Cat1 2.4.3	Download MPXHZ6250A_ModusToolbox_010000.zip 12.09 KB 0 count
MCUXpresso SDK iMXRT1051B_1052B ksdk2_0	Download MPXHZ6250A_iMXRT1051B1052B_010000.zip 12.75 KB 0 count
SSP 2.4.0	Download MPXHZ6250A_SSP_010000.zip 12.35 KB 0 count
STM32Cube FW_F4 V1.27.1	Download MPXHZ6250A_STM32F4_010000.zip 12.42 KB 0 count
MCAL	under development

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If you are unable to download the File, please contact us and let us know the model number and HAL type. We will send you the file as an email attachment.

Built-in How to

How to incorporate OSS-ECAL into user programs

How to incorporate multiple OSS-ECALs in a user program (same MCU function)

How to incorporate multiple OSS-ECALs in a user program (different MCU function)

How to incorporate multiple identical electronic components into a user program

How to reduce the impact on user programs by replacing electronic components