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TMS320F28388S: CLB doubt

Jordan Zhou
Genius 10100 points
Part Number: TMS320F28388S
Other Parts Discussed in Thread: SYSCONFIG

Hi,

  Some questions about CLB and Crossbar need confirmation.

  CLB input X-bar and CLB output X-bar are mentioned in TRM(spruii0a) Chapter X-BAR, and basic functions are described. But I can't find detailed registers to be implemented. Does these two modules exist?

  Actually, there 8 tiles in 2838x, but in TRM(spruii0a) Chapter CLB, maybe just copied from TRM of 28379, registers for tile5~8 are missing. So, could you provide a newest TRM of 2838x with correct description of CLB? Another question, when designing with sysconfig tool in CCS, can tile5~8 of 28388 be edited or implemented?

Thanks a lot.

Br, Jordan

  • 0
    TI__Guru 52040 points

    Jordan, 

    CLB input/output crossbars and  8 tiles for F2838x, will be available in 2020 in SW.

    We are currently developing the support for them.

    Nima

  • 0 in reply to Nima Eskandari
    TI__Genius 10100 points

    Nima,

    Thanks for your info.

    Do you have the scheduler? Customer is waiting for that.

    Or, do you have a draft version?

    Br, Jordan

  • 0 in reply to Jordan Zhou
    TI__Genius 10100 points

    Nima,

    One doubt about counter clock.

    9.4.2.2 Counter Operation

    The counter inputs are as follows.

    • RESET: This is the highest priority input and takes precedence over all other inputs. The input is level

    sensitive and as long as it remains high, the counter will reset to 0 on the next clock cycle.

    • MODE_0: This input is an enable for the counter. The counter begins counting (up or down depending

    on the MODE_1 setting) only when this input is high. If this input is low, then no counting takes place.

     

    My question

    MODE_0 is level active or edge active, if level active, then what is the counter clock, that is how long the counter add or sub an increment?

    Thanks a lot.

    Br, Jordan

  • 0 in reply to Jordan Zhou
    TI__Guru 52040 points

    MODE is level based. Counter module in "counter mode" is always counting the clock cycles. If you want to provide the clock, configure it as an adder with an add of "1" when the EVENT signal edge occurs.

    Nima