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TMS570LS0714: Why the number of instruction in HET IDE is limited to 160?

Vivian(MCU) Zhang
Intellectual 1545 points
Part Number: TMS570LS0714

Hi,

My customer is developing with TMS570LS0714 HET using HET IDE.

There's a question about the number of instructions.

In datasheet,  we got the information that each HET could support 512 instructions. But go to HET IDE, the number of instruction is only 160, and different part number of 570 is different.

Is that means if customer develop with HET IDE, the max number of instruction is only 160 for 0714?

If customer's code size more than 160, how could support?

Vivian Zhang

  • 0
    TI__Guru**** 196776 points

    Hello Vivian,

    The size of the NHET RAM is only 160-word (128-bit word) long. Each 128-bit word is organized for only 1 NHET instruction (32-bit program field + 32-bit control field + 32-bit data field + 32-bit reserved). So the maximum instruction supported by this device is 160.

    Please optimize the code and reduce the instructions to <160. what is the NHET used for? Another way, they may consider to use both NHET1 and NHET2: