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CCS/TMS320F28335: tms320f28335

Part Number: TMS320F28335

Tool/software: Code Composer Studio

hai,

i am using dsp- tms320f28335 for acquisition , the values in adc result registers are given to dma buffer, then they are sent to pc via ethernet for monitoring in gui . the internal adc work in cascade mode so  16 inputs are taken at a time.length of dma buffer is 2000. 496 samples are send in a packet. problem is i am not able to monitor the signal in gui.

  • Shekha,
    I'm not sure I understand the problem here. Are you not able to see the gui updated on PC? did you check if ethernet packets are being transmitted from board to the PC, using any packet sniffer (wireshark) tool? I'm not sure how you are adding ethernet capability here and had this been working at some point and it broke after any change?

    Best Regards
    Santosh Athuru
  • Shekha,

    F28335 doesn't have ethernet module. Are you sure you are using F28335?

    Regards,
    Manoj
  • hai sir,

    now i am getting the signal on gui both transmitted and received but the problem now faced is that actually only one accquistion is taking place but am getting more than one.

  • Shekha,

    I'm not sure I understand the picture above, is that EtherNET? could you explain on how you connected Ethernet to F28335 and I understand that you are trying to send the ADC data to a PC, using Ethernet. I'm not sure which DMA you are using on MCU, which peripheral?

    You will have to break down the problem/issue and first make sure your application on MCU is able to transfer data to PC via Ethernet, you can test this code by sending dummy data (or same data) again and again. Once you established a good ethernet communication code/SW then you can test the ADC acquisition SW and keep it seperate from Ethernet Communication SW for now and just get the ADC SW working. If you ahve problem with configuring/understanding ADC, please post in the question in this forum and one of the team members can help.

    Once you get both the above pieces of SW tested independently, you can integrate them. Otherwise you might end up spending time chasing the error at wrong place in your SW.

    Hope this helps.

    Best Regards
    Santosh Athuru