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TSW1400EVM - ADS4249EVM - DAC5681EVM

Samet Tilkioglu
Prodigy 70 points
Other Parts Discussed in Thread: DAC5681EVM, ADS4249EVM, ADS4449EVM, DAC3482, ADS4249

Hi,

I am planning to design system which can generate and capture signals at the same time. Thus, I choosed TSW1400EVM, ADS4249EVM and DAC5681EVM. Though TSW1400EVM supports ADS4249EVM and DAC5681EVM separately, I couldn’t find any information about using these (ADS and DAC) at the same time. Before order, I want to be sure that they can work with together.

 Thank you in advance for your interest,

 

Best Regards,

Samet

  • 0
    TI__Mastermind 20541 points

    Hi Samet,

    You cannot use ADC and DAC simultaneously on one TSW1400 board. You will need two TSW1400 boards one for ADC and one for DAC.

    Also you can only connect one TSW1400 to a PC at a time. So if you want to use DAC5681EVM and ADS4449EVM simultaneously, you will have to use two TSW1400 connected to two different PCs.

    Regards,

    Neeraj Gill

     

  • 0 in reply to Neeraj Gill
    Prodigy 70 points

    Dear Neeraj,

    Thank you for your answer,

    Why don't TSW1400EVMs support DAC and ADC simultaneously? And, why should I use one PC for this? I am asking / I want to learn its technical limitation.

    I should work with DAC6581EVM and ADS4249EVM at the same time. Is there any other platform except TSW1400EVM. If it is impossible with another platform, what is your suggestion to overcome my problem?

    Thank you in advance for your interest,

    Best Regards,

    Samet

  • 0 in reply to Samet Tilkioglu
    TI__Mastermind 20541 points
    Hi Samet,

    Sorry for delayed response. I was on a month long vacation.

    The TSW1400 has to be used with HSDC PRO software. The HSDC pro software can only talk either with DAC or ADC individually not simultaneously with both of them.

    In your case you will have to buy two TSW1400 boards and connect them to two separate PCs. One TSW1400 will be connected with DAC5681EVM and other will be connected with ADS4449evm.

    Regards,
    Neeraj Gill
  • 0
    Prodigy 40 points
    I`m having a similar problem, although I`m using different boards. Is it possible to use Python or any other programming language in order to read the data from the ADC?
  • 0 in reply to Neeraj Gill
    Prodigy 70 points

    Dear Neeraj,

    Thank you for your answer,

    From your previous answer and Iast answer, I understand that HSDC Pro Software can only talk either DAC or ADC / we can not control ADC and DAC simultaneously from HSDC Pro Software. Because of program limitation, we should use two different computer if we use HSDC Pro Software. I understood this situation in your previous answer and i answer wrote to you to request the alternative solution. Your last answer is also about using HSDC Pro Software. My question is different than what you understand.

    I want to control ADC and DAC with program which is written in another language by me. During control, my program will control FPGA(Altera Stratix IV) and it will control ADC and DAC without using the HSDC pro software GUI. My question is at that stage on LVDS interfaces. Is timing process can be done with Altera Stratix IV FPGA while ADC and DAC are connected via LVDS interfaces? Can I control simultaneously them?

    During my research, i found a document which is about ‘Interfacing Altera FPGAs to ADS4249 and DAC3482’. I couldn’t find a detailed examination chance yet. By superficial examining this example, i understand that TSW1400EVM can control TI’s high speed ADCs and DACs simultaneously and seamlessly.

    Document Link(Interfacing Altera FPGAs to ADS4249 and DAC3482):
    www.ti.com/.../slaa545.pdf

    Thank you for your answer in advance,

    Best Regards,

  • 0 in reply to Samet Tilkioglu
    TI__Guru* 91947 points

    Samet,

    You should be able to capture data and send data at the same time using your own firmware. Both boards are using separate connectors that feed different pins on the FPGA. Are you plan on using internal FPGA memory only? If not, there may be a challenge trying to write and read from the external DDR memory at the same time. Do you need the schematic for this board?

    Regards,

    Jim

  • 0 in reply to jim s
    Prodigy 70 points
    Dear Jim,

    Thank you for your answer,

    As you said, i am planning to use FPGA’s internal memory. With written firmware by me, I am planning to control both ADC and DAC simultaneously via FPGA. I received required documents from the website of the products. Before order, I wanted to make sure about feasibility. To make sure I ask again, Can I control ADC and DAC simultaneously by developed firmware from TSW1400EVM’s Altera Stratix IV FPGA?

    Best Regards,
  • 0 in reply to Samet Tilkioglu
    TI__Guru* 91947 points

    Samet,

    I cannot answer this as we have never tried it. I will check with our firmware development team and try to get their opinion on this.

    Regards,

    Jim

  • 0 in reply to jim s
    Prodigy 70 points
    Dear Jim,

    Thank you for your answer,

    I am waiting your firmware development team opinion.

    Best Regards,
  • 0 in reply to Samet Tilkioglu
    TI__Guru* 91947 points

    Samet,

    Comments from our development team:

    Yes, it is feasible. We have also worked on an implementation using TSW1400, where we captured LVDS data from an ADC and transferred it on the DAC port. Here a NI PXI card was replacing the DAC EVM but the application was a simultaneous capture and generation of LVDS data using TSW1400.

    Regards,

    Jim

  • 0 in reply to jim s
    Prodigy 70 points
    Jim,

    Can you give information about the test procedure which includes ADC and NI PXI card? If it is possible, can you send to me firmware which is relevant with NI PXI card and ADC card?

    Regards,
    Samet Tilkioglu
  • 0 in reply to Samet Tilkioglu
    TI__Genius 12965 points
    Samet,
    Have a look here. This outlines an example of how to do this. The DAC is different but you can use this as a starting example.
    www.ti.com/.../TIDA-00069

    Ken.