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TMS570LS3137 Spec confusion

Andy Worsley
Intellectual 640 points

Other Parts Discussed in Thread: TMS570LS3137, TMS570LS3135

I had originally identified the 3135 variant as being a micro that will do what we need only to find out that it can't be ordered. However the 3137 looks like a close match, but there appears to be conflicting information regarding serial comms capability. The web page (ti.com/product/tms570ls3137) says the PGE version has no UARTs, but the document 'Hercules Safety Microcontrollers' (spry185a.pdf) says UART(LIN) - 2(1). I'm unsure whether it does or doesn't have UARTs.

To put the question another way, what I need is LIN and RS232 at the same time, is this variant capable of doing that?

Thanks

Andy

  • 0
    TI__Intellectual 1835 points

    Andy,

    The only difference between TMS570LS3135 and TMS570LS3137 is that TMS570LS3137 has Ethernet.  So, they both have 2 SCI/LIN modules on them.  The SCI can be used as a UART.  So, you will be able to do RS232 on one SCI/LIN (using just the SCI features) and one LIN (using the module in LIN mode).   Really the UART row should be removed from the web page and we will get that fixed (thanks for pointing that out - not sure why that is showing up).

    Note that the TMS570LS3135 will be available soon.  We just qualified the TMS570LS31x/21x series of devices.  We are just shipping the superset TMS570LS3137 today as prototypes (TMX5703137) since it can emulate any of these other devices in the family. Order entry on all the other TMS570LS31x/21x devices should be opened in the next few months.

    Please let me know if this answers your questions.

    Best Regards,
    Roy

  • 0 in reply to Roy Haley
    Intellectual 640 points

    Roy,

    yes, that answers my question perfectly!

    I have to say I'm impressed with this forum, the answers have been concise and timely. It could make the difference between ordering a TI part over that of a competitor micro that has comparable performance.

    Thanks

    Andy