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CCS/TMS570LS3137: Synchronous data and high frequency clock simulation using TMS570ls3137

amirhossein safari
Prodigy 10 points
Part Number: TMS570LS3137


Tool/software: Code Composer Studio

Hi, I need to simulate comunication data of a camera. The camera sends its data with a clock and data signal. The clock frequency is 25/14 Mhz (=1.78 Mhz) and the data should be valid on the rising edge of the clock signal.

I wanted to use RTI and GPIO pins to simulate this data transformation but the GPIO couldn't be toggled more than 100 khz. Is there any limitation on the toggling of GPIO pins?

Is there an alternative solution to came up with this problem and simulate this data transformation?

Regards


Amirhossein Safari

  • 0
    TI__Guru**** 199096 points

    Hello Safari,

    I haven't measured the time to output value to GIO port on LS3137. You may try it by making a loop that write data to a IO port many times and embedded it by PMU.

    How many GIO pins are used? Can you use EMIF for your purpose or use MibSPI in parallel?