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Original question:

MSP432E401Y: PTP IEEE1588V2 implementation on a M4 core mcu

MSP432E401Y: PTP support

Jim Whitehouse
Expert 1431 points
Part Number: MSP432E401Y
Other Parts Discussed in Thread: SYSCONFIG

Hi,

I am interested in implementing some form of PTP on a collection of MSP432E4xx based nodes, ideally running TIRTOS and the full TCP/IP nw stack.

I was wondering if there had been any progress with development of PTP driver support and/or example code, since this question was last asked.

Thanks

Jim

  • 0
    TI__Guru 56685 points

    Hello Jim,

    What was mentioned in the previous thread is still valid. this is not an area we have explored for our software. 

  • 0 in reply to Jace H
    Expert 1431 points

    Hi,

    I am hoping to implement a PTP node on an MSP432E but I, as yet, have very little clue about how to do it. Between Wikipedia and section "15.3.6 IEEE 1588 and Advanced Timestamp Function" of the reference manual, I get the basic idea but also have rather more questions than answers!

    So far, I have implemented a few Ethernet projects on the 432 Launchpad, with TIRTOS. Just clicking a few things in the sysconfig tool configures the network stack and EMAC, with RTOS tasks as required. No low level activity required by the user! The reference manual mentions various EMAC registers required for PTP - can I just access these as required while TIRTOS is handling other network activity?

    I'm guessing that I need a task to subscribe to PTP UDP messages, and that task can then do things like read the register to get the timestamp of the incoming message. Is that about right?

    Are there PTP examples for any other processors, where I might get some hints? Or any other articles about PTP?

    I wonder how TI tested PTP support when the 432 was released?

    Thanks

    Jim

  • 0 in reply to Jim Whitehouse
    TI__Guru 56685 points

    Hey Jim,

    We don't have any collateral on this from MSP432E4 perspective that I am aware of, nor on the related device of TM4C129. I did see that another community member posted a barebones implementation for TM4C129 a couple years ago that you could utilize as a guide. Mind you TM4C has a completely different SW SDK than MSP432E4 devices.

    https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/802925/tm4c1294kcpdt-barebones-1588-ptp-implementation/2971462#2971462