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ADS1247EVM-PDK MMB3 Microcontroller Developing

Antonio Godoi
Prodigy 10 points
Other Parts Discussed in Thread: MSP430F449, ADS1247

Hi,

I am developing an precision RTD acquisition system and learned that ADS1247 should be fine for my application. In order to develop and test my circuit I decided to buy ADS1247EVM-PDK which has a board with TI microcontroller MSP430F449 and the ADS1247EVM.

I would like to write a program and send it to the microcontroller MSP430F449 so the board should work standalone allowing the user to control it by using the embedded board joystick and reading the temperature on the board LCD.

But, when I read the ADS1247EVM-PDK user's guide on page 12 I found "... and has a joystick for control of functions on the board when it is not controlled by a PC. These features are experimental and not supported in the ADS1247EVM-PDK at this time." 

I have been looking for further information to check whether it is now working so I could buy this board to develop my application, but didn't found it yet.

Then, I would like to ask for a suggestion of a board (with a Microcontroller and ADS1247) which I could use to develop my system and test it in a standalone fashion, that is, without the need of a computer.

Thank you very much,

Antonio

  • 0
    TI__Guru** 113765 points

    Hi Antonio,

    Welcome to the forum!  The MMB3 was created as a motherboard solution to demonstrate the various capabilities of our devices.  So the key word is demonstrate as compared to develop.  Unfortunately we do not have the staffing to support software/firmware development using these types of platforms.  The current code for the ADS1247EVM/MMB3 requires the use of freeRTOS and MSPGCC as the compiler and is not very user friendly.  In other words, you can't just take code snippets and run in other IDE environments.  So it is the code development with respect to the joystick that is not supported.  There are some functions of the joystick that do work, but there is no documentation or support by TI for the use of those functions.  The joystick itself is fully connected to the microcontroller and usable in an application.

    That said, if you want to solder a JTAG header to the MMB3 and write a program to use the features as you have described, then that is up to you.  I just want to make it clear that we can not give specific support to these endeavors with respect to writing code for the LCD, joystick, communications, etc. outside of the code as it would relate to the ADC itself to which you are using.  The schematic for the MMB3 can be found:

    ftp://ftp.ti.com/pub/data_acquisition/ADCPro2/misc/mmbx%20sch/MMB3_Schematic.pdf

    We do not have any other specific options for the ADS1247EVM as a standalone.  There may be options with fly-wire connections from the EVM to a Launchpad and LCD Boosterpack.

    Best regards,

    Bob B