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I have a problem to use the ADS1256EVM with MMB0 Development Board..

Eddy Lee
Intellectual 840 points
Other Parts Discussed in Thread: ADCPRO, ADS1256, ADS1278EVM-PDK, ADS1278, ADS1258

Hello,

I want to test ADS1256EVM on the MMB0 board(This board is included ADS1278EM-PDK).

Test environment is as bellow :

- installed ADCpro V1.2 & ads1256evm-pdk-plugin-1.0.0.

- set the default setting ADS1256EVM. (ADS1256 user guide figure 7 page on 13)

- AC adaptor use(This adaptor included the ADS1278EVM-PDK board, Vo = 6V/3A) 

I was following the user guide & checked until NI-VISA USB Device Driver Installation.(ADS1256 user guide figure 20 page on 23)

But my problem occured at this time...

I connected the board with adaptor & my computer.

I ran the ADCpro & Select ADS1256EVM from the EVM drop-down menu.

Following the user guide, it will start installing the USBStyx Driver Installation.

But the driver wizard sequence is not occured.

ADCpro just displayed  "DSP not ready... Retrying..."

And Finally pop up this message..

"The firmware load has failed due to a timeout condition.

Please reset hardware to continue loading the firmware"

Is it different with ADS1278EM-PDK & ADS1256EM-PDK?

Or am I was wrong something(setting, installation..)??

Please solve my problem..

 Best Regards

  • 0
    TI__Mastermind 43915 points

    Hi Eddy,

    The error you are describing will appear when the computer is unable to communicate with the MMB0. Below are a couple of steps to follow to make sure you have the setup properly configured: 

    - First, make sure that your USB cord is properly connected to the computer and to the MMB0.

    - Second, make sure that you have the jumper settings properly configured for the ADS1256 and MMB0 as shown in the user's guide.  

    - Finally, when you first run the ADS1256EVM plugin in ADCPro, a box will appear prompting you to install the USBStyx drivers. Make sure you select to have that install or you will have problems connecting to the ADC. When I was trying to reproduce your customer's issue, the firmware would timeout when I did not select to install the USBstyx drivers.

    Once the USBStyx drivers are installed, restart ADCPro and open the ADS1256EVM plugin and I was not having any problems. Note, that ADCPro does not support Windows Vista or Windows 7 support so the program does need to be run on Windows XP. 

    Regards,

    Tony Calabria

  • 0 in reply to Tony Calabria
    Prodigy 210 points

    Thanks for your help Tony.

    I'm Eddy's co-worker.

    Now, I can use this board for your support.

    Maybe the problem occrued  due to the USB cord...

    The MMB0 Board connect with my PC successfully.

    But I have one more question.

    I want to collect muiti Channel data.

    Can this board support it?

     

    Best Reguard

    Harry.Lee

  • 0 in reply to Hyun Woo Lee
    TI__Mastermind 43915 points

    Hi Harry,

    The first time you attempt to run the ADS1256EVM plugin it has to install the USBstyx drivers in the background and ADCPro will read a timeout as this happens. You then close ADCPro. The second time you open ADCPro and try to run the ADS1256 plugin you should not have any problems (as USBstyx will successfully be installed prevously). Maybe USBstyx was installing in the background the first time that you tried to run the ADS1256EVM plugin and that is why you were experiencing errors and they are now gone. Anyways, to answer your other questions:

    You can see the full functionality of the ADS1256EVM PDK plugin in the user's guide located below:

    http://focus.ti.com/lit/ug/sbau090c/sbau090c.pdf

    The ADS1256 part as itself does not include any kind of auto-scan or auto-channel sequencing built into the digital control. Switching from channel to channel must be done manually by writing to the registers once a conversion is completed. The plugin follows the same concept as you will be required to manually change from channel to channel if you would like to read back the conversion results for multiple channels. Therefore, you will not be able to collect multichannel data and display it in the "multi-scope" test plugin. Other EVMs, such as the ADS1258, ADS1278, etc. support plotting of multiple channels simultaneously as the parts have the built in ability to read back from multiple channels automatically without manually having to go through and changing the mux after each conversion.

    One thing that you may be able to do is export the data from each channel converted to a text file and then compare the converted data in a plot format.

    Regards,

    Tony Calabria