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AM2434: the RAM resources that the protocol stack needs to occupy

Bruce(Shanghai) Liu
Intellectual 1010 points
Part Number: AM2434

There are two servo problems that need to be confirmed：

  • When motor control algorithm runs on the R5F core, and it need to occupy 512KB of RAM resources. Since the chip only has 2M shared SRAM and the customer does not want to connect external memory, they are worried that the RAM resources of the entire Profinet IRT protocol stack are not enough. So we are required to give the RAM resources that the protocol stack needs to occupy.
  • The customer require to read the internal RAM data from the AM243x through the 16-bit parallel bus. The kind of peripheral needs to be confirmed.
  • +1
    TI__Guru 55245 points

    Hi Bruce,

    The MSRAM0 - 5 is used as the memory logs (total 384KB) for certain key values. They are not needed for the servo drive demo. That leaves the memory usage for the servo drive demo to 128KB.

    The Profinet stack is less than 1MB, so the on chip memory left for user application is more than 1MB

    Customer can use GPMC interface (can be configured to 8bit, 16bit or 32 bit) to access to the on chip memory on AM243x.

    Best regards,

    Ming