This is an overview of the MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A) and the OSS-ECAL offering for the MPXxx6115A series. The MPXxx6115A series is a pressure sensor IC (15 kPa to 115 kPa ) made by NXP Semiconductors.
MCU interface : ADC
CAUTION:Please be sure to refer to the latest version of the Datasheet prior to actual design.
MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A)
General description
The MPXxx6115A 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 pressure sensor a logical and economical choice for the system designer.
The MPXxx6115A 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
- Resistant to high humidity and common automotive media
- Improved accuracy at high temperature
- Available in small and super small outline packages
- 1.5% maximum error over 0 °C to 85 °C
- Ideally suited for microprocessor or microcontroller-based systems
- Temperature compensated from -40 °C to +125 °C
- Durable Thermoplastic (PPS) Surface Mount Package
Application
- Industrial controls
- Engine control/manifold absolute pressure (MAP)
- Weather station and weather reporting device barometers
OSS-ECAL specification
API Function
etSTS oMPXH6115A( etCMD cmd, float32* rlt )
The oMPXH6115A function is an API function that executes MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A) processing according to the command in the argument.
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_MIN | Minimum Pressure error (rlt is minimum Pressure) | ||
| eSTS_ERR_MAX | Maximum Pressure error (rlt is maximum Pressure) | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_COMMAND_CODE | Command selection error | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_HAL_OTHERS_RUN | Other application is running HAL | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error | ||
| Parameter IN | etCMD cmd | OSS-ECAL command code | |
| eCMD_START | Command to start AD conversion. | ||
| eCMD_READ | Command that reads the AD conversion value, converts the AD conversion value to a characteristic Pressure, and stores the Pressure in rlt. AD conversion value to Pressure conversion equation Voltage value = (AD conversion value × VDD) / ( 2AD bit ) Pressure = ((voltage value – voltage offset value) / gain) + Pressure offset value (Min, Max Limit) | ||
| eCMD_START_READ | 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. AD conversion value to Pressure conversion equation Voltage value = (AD conversion value × VDD) / ( 2AD bit ) Pressure = ((voltage value – voltage offset value) / gain) + Pressure offset value (Min, Max Limit) | ||
| Parameter OUT | float32* rlt | Pressure 15.0 to 115.0 [kPa] |
Command Correspondence Table by HAL
| Arduino | eCMD_START_READ |
| ARM Mbed | eCMD_START_READ |
| Infineon ModusToolbox | eCMD_START_READ |
| NXP MCUXpresso iMXRT1051B_1052B | eCMD_START eCMD_READ eCMD_START_READ |
| Renesas SSP | eCMD_START eCMD_READ eCMD_START_READ |
| STM STM32Cube FW_F4 | eCMD_START eCMD_READ eCMD_START_READ |
etSTS oMPXH6115A_START(void)
The oMPXH6115A_START function is an API function to start AD conversion of the MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A).
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_HAL_OTHERS_RUN | Other application is running HAL | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error |
Function Correspondence Table by HAL
| Arduino | – |
| ARM Mbed | – |
| Infineon ModusToolbox | – |
| NXP MCUXpresso iMXRT1051B_1052B | X |
| Renesas SSP | X |
| STM STM32Cube FW_F4 | X |
etSTS oMPXH6115A_READ( float32* rlt )
The oMPXH6115A_READ function is an API function that checks for the end of AD conversion of the MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A), reads the AD conversion value, converts the AD conversion value to a characteristic Pressure, and stores the Pressure in rlt.
AD conversion value to Pressure conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Pressure = ((voltage value – voltage offset value) / gain) + Pressure offset value (Min, Max Limit)
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_MIN | Minimum Pressure error (rlt is minimum Pressure) | ||
| eSTS_ERR_MAX | Maximum Pressure error (rlt is maximum Pressure) | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_TIMEOUT | ADC Timeout error (AUTOSAR only) | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error | ||
| Parameter OUT | float32* rlt | Pressure 15.0 to 115.0 [kPa] |
Function Correspondence Table by HAL
| Arduino | – | |
| ARM Mbed | – | |
| Infineon ModusToolbox | – | |
| NXP MCUXpresso iMXRT1051B_1052B | X | |
| Renesas SSP | X | |
| STM STM32Cube FW_F4 | X | Time-out time HAL_MAX_DELAY |
etSTS oMPXH6115A_START_READ( float32* rlt )
The oMPXH6115A_START_READ function is an API function that starts an AD conversion of the MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A), waits for the AD conversion to finish, reads the AD conversion value, converts the AD conversion value to a Pressure characteristic, and stores the Pressure in rlt.
AD conversion value to Pressure conversion equation
Voltage value = (AD conversion value × VDD) / ( 2AD bit )
Pressure = ((voltage value – voltage offset value) / gain) + Pressure offset value (Min, Max Limit)
| Return value | etSTS | OSS-ECAL status code | |
| eSTS_FIN | Completed successfully | ||
| eSTS_ERR_MIN | Minimum Pressure error (rlt is minimum Pressure) | ||
| eSTS_ERR_MAX | Maximum Pressure error (rlt is maximum Pressure) | ||
| eSTS_ERR_HAL_ADC | HAL ADC Error | ||
| eSTS_ERR_OTHERS_RUN | Other components are executing the process | ||
| eSTS_ERR_HAL_OTHERS_RUN | Other application is running HAL | ||
| eSTS_ERR_ADC_OBJECT | AD conversion object selection error | ||
| Parameter OUT | float32* rlt | Pressure 15.0 to 115.0 [kPa] |
Function Correspondence Table by HAL
| Arduino | X | |
| ARM Mbed | X | |
| Infineon ModusToolbox | X | |
| NXP MCUXpresso iMXRT1051B_1052B | X | |
| Renesas SSP | X | |
| STM STM32Cube FW_F4 | X | Time-out time HAL_MAX_DELAY |
HAL Support List
OSS-ECAL’s HAL support is as follows. Please note that even if the same HAL is used, different versions, MCUs, and development environments may not work together. The list is being expanded sequentially.
| Manufacturer | SDK/IDE Tool | HAL Name | Ver | HALNAME | Support |
|---|---|---|---|---|---|
| Arduino | Arduino IDE | Arduino | 1.8.6 | ARDUINO | X |
| Arm | Keil MDK v6 | Mbed OS | 6.17.0 | MBED | X |
| Debian | – | GNU/Linux | 10.3 | Linux | – |
| Infineon | ModusToolbox | mtb-hal-cat1 | 2.4.3 | ModusToolbox | X |
| NXP | MCUXpresso SDK | SDK_2.x_EVKB-IMXRT1050 | 2.16 | iMXRT1051B1052B | X |
| NXP | PlatformSDK_S32K1_2022_02 | AUTOSAR MCAL | 4.4 | MCAL | – |
| Renesas | Synergy Software Package | HAL | 2.6.0 | SSP | X |
| STMicroelectronics | STM32Cube | STM32CubeF4 | V1.28.1 | STM32F4 | X |
Development environment
The MCU and development environment during OSS-ECAL development are as follows.
| HALNAME | Manufacturer | Board | MCU | IDE |
|---|---|---|---|---|
| ARDUINO | Arduino | 1.Mega 2560 Rev3 2.Arduino Pro Mini 3.3V | ATmega2560 ATmega328P | Arduino IDE 2.3.3 |
| MBED | STMicroelectronics | STM32 Nucleo-64 boards | STM32F401RETx | Arm Keil Studio Cloud |
| Linux | BeagleBoard | BeagleBone Black | TI AM335x | – |
| ModusToolbox | Infineon | CY8CPROTO-063-BLE PSoC 6 BLE Prototyping Kit | CYBLE-416045-02 | ModusToolbox |
| iMXRT1051B1052B | NXP | IMXRT1050-EVKB | i.MX RT1050 | MCUXpresso IDE |
| MCAL | STMicroelectronics | S32K144EVB-Q100 | S32K144 | S32 Design Studio for S32 Platform |
| SSP | Renesas | S7G2 SK | R7FS7G27H3A01CFC | e² studio for Renesas Synergy |
| STM32F4 | STMicroelectronics | STM32 Nucleo-64 boards | STM32F401RETx | STM32CubeIDE |
Files
| Folder* | File | Summary |
|---|---|---|
| MPXH6115A_HALNAME_VERSION/sample | sample.c (.cpp) | Sample Application Program |
| sample.h | Sample Application Header | |
| MPXH6115A_HALNAME_VERSION | oMPXH6115A.c (.cpp) | OSS-ECAL Program for MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A) |
| oMPXH6115A.h | OSS-ECAL Header for MPXxx6115A Series(MPXA6115A, MPXAZ6115A, MPXH6115A, MPXHZ6115A) | |
| MPXH6115A_ARDUINO.ino | Sample application programs for Arduino | |
| oss_ecal.h | OSS-ECAL Common Header (Ver 01.00.00 or later, AUTOSAR is Ver 01.01.07 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.
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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
CAUTION
The sample version of OSS-ECAL is not intended to be used with Threads (Tasks) or interrupts of different priority. Please do not use it as in the example below.
Example: If each sensor is assigned to the same ADC group and the OSS-ECAL API is executed in processes with different priorities, correct values may not be obtained.
ADC Gr0 Ch0 Temperature sensor AD22100A 100ms cycle Thread (low priority) to take in temperature
ADC Gr0 Ch1 Pressure sensor MPX5999D Event interrupts (high priority) to take pressure