MS5637 datasheet(2/9 Pages) HUMIREL

2 / 9 page

MEAS MS5637 DCS FOR ZedBoard

Digital Pressure and Temperautre Sensor

SENSOR SOLUTIONS /// MEAS MS5637 DCS DEVELOPMENT KIT

07/2016

Page 2

Drivers & Software

Detailed example software and drivers are available that execute directly, without modification, on a number of development

boards that support an integrated or synthesized microprocessor. The download contains several source files intended to

accelerate customer evaluation and design. The source code is written in standard ANSI C format, and all development

documentation including theory/operation, register description, and function prototypes are documented in the interface file.

Functions Summary

Enumerations

enum

ms5637_status { ms5637_status_ok, ms5637_status_i2c_transfer_error, ms5637_status_crc_error }

enum

ms5637_resolution_osr { ms5637_resolution_osr_256, ms5637_resolution_osr_512, ms5637_resolution_osr_1024,

ms5637_resolution_osr_2048, ms5637_resolution_osr_4096, ms5637_resolution_osr_8192 }

Functions

void

ms5637_init (u32)

Initializes the AXI address of the AXI IIC Core and the internal resolution variable to ms5637_resolution_osr_8192 to reflect

the sensor’s initial resolution value on reset.

enum

ms5637_status

ms5637_reset (void)

Sends I2C reset command to the MS5637 device.

enum

ms5637_status

ms5637_read_prom (void)

Reads the factory calibrated coefficients for use in temperature and pressure conversion.

enum

ms5637_status

ms5637_set_resolution (enum ms5637_resolution)

Read the user register from the device, modify its contents to reflect the resolution that is passed in to this function, and

then write the updated user register value to the MS5637 device.

enum

ms5637_status

ms5637_read_temperature_and_pressure (float* t, float* p)

Send the I2C commands to start a temperature conversion, wait for completion, read the temperature value, start a

pressure conversion, wait for completion, read the pressure value, and use the PROM coefficients to calculate

compensated values.

Project Setup

This project is based on a ZedBoard. The FPGA hardware and the console application will be loaded via SD card.

You will need:

ZedBoard

MS5637 sensor for Digilent Pmod™ board

SD card

ZedBoard power adapter

USB-to-MicroUSB cable for UART communications

A computer with a card reader to write to the SD card and to host a terminal emulator

The following steps will guide you through setting up the hardware platform:

1. First, if you have not connected your computer to a ZedBoard of MicroZed device before, you will likely need to download

and install the Silicon Labs CP2104 USB-to_UART driver. The setup guide for installing the driver can be found at the

address below: http://www.zedboard.org/sites/default/files/documentations/CP210x_Setup_Guide_1_2.pdf

2. Next, attach the SD card to your computer via a card reader or through the built-in SD card slot.

Download the “boot.bin”

file that pertains to the MS5637 from the software link and copy it onto the SD card so that it is the only file present on the

file system.

ZedBoard, MicroZed and Digilent Pmod

™ are trademarks.

MS5637 Datasheet(PDF) 2 Page - Humirel

MS5637 Datasheet(HTML) 2 Page - Humirel

Html Pages

1 2 3 4 5 6 7 8 9

Datasheet Download

Link URL