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Interface ADS5410 EVM to TMS320C6748 DSP Development Kit (LCDK)

Srivathsan Vasudevan
Prodigy 20 points
Other Parts Discussed in Thread: TMS320C6748

Hi,

I have recently bought 80MSPS ADS5410 EVM and also a DSP kit TMS320C6748. I need some advice on how to interface this ADC board to the DSP kit and read data at 80MSPS to the RAM memory / any other memory in the DSP kit. 

Moreover, can this program be written in Code Composer Studio or should I have ro resort to C or C++ language. 

Appreciate any help in this regard.

Thanks,

Srivathsan

  • 0
    TI__Genius 17340 points

    Hi Srivathsan,

    We do not have experience interfacing this ADC with a DSP. Usually high-speed ADCs and DACs are interfaced with an FPGA. That's not to say that this cannot be done, just that we don't have the experience. The main key is guaranteeing that the setup and hold times are met.

    The sampling of the ADC is controlled by the CLK input of the ADC and the propogation delay from the CLK rising edge to valid data is defined as 10 ns (page 6 of datasheet). You'll probably need your DSP to trigger off the CLK input so that the correct phase relationship of the can be met. Unless the DSP provides some way to adjust the interface sampling time, you would also need an external way to adjust the timing of the trigger signal (CLK) relative to the data.

    Sorry we can't be of more help.

    Regards,
    Matt Guibord