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Original question:

TMS570LS3137: MCAL for SPI4 on TMS570LS3137PGE

CCS/TMS570LS3137: Regarding second UART in TMS570LS3137

GARGI PANCHOLI
Intellectual 440 points
Part Number: TMS570LS3137
Other Parts Discussed in Thread: TMS570LS0432, HALCOGEN

Tool/software: Code Composer Studio

HI SIR,

We are doing active cell balancing using TMS570LS3137 and for that, we are referring TMS570LS0432 module. In that module R8 and R9 removed to create  second UART  by  N2HET timer module. i want to ask whether, we have to follow the same procedure in our microcontroller or not?

Thank you 

  • 0
    TI__Mastermind 49120 points
    Hello,

    Two UART ports are required for this application: one to interface to the BQ chip, and one to interface to the FTDI chip for the debug access. The TMS570LS3137 MCU has two separate UART ports (LIN module can be configured as standard SCI), so you don't need to emulate SCI using the N2HET, but you can if you want to.

    The LS3137 does not have a launchpad, are you designing your own PCB or are you using the HDK to begin with?

    Regards,
    Sunil
  • 0 in reply to Sunil Oak
    Intellectual 440 points

    hi sir,

    yes i am using HDK board of TMS570ls3137.

    So for the second UART i can use Lin module as a SCI and according to that, i have to do settings in halcogen.

    i want to ask in halcogen to use Lin as SCI, in which module( SCI, LIN OR SCI2)  the settings should be done.

    I am doing settings in SCI2. Am i right or wrong?

    Thank you 

  • 0 in reply to GARGI PANCHOLI
    TI__Mastermind 49120 points
    The HDK schematic (processors.wiki.ti.com/.../TMS570LS31x_HDK_Schematics_RevE.pdf) shows that the LIN (SCI2 in HALCoGen) RX and TX are used to communicate with the FTDI transceiver. This LIN/SCI2 module on the TMS570LS31x part is routed to the 2nd port of FTDI chip. The FTDI USB driver makes the FT2232H 2nd channel appear as a virtual COM port (VCP). This allows the user to also have standard PC serial communications with the HDK using the same USB interface as the on-board emulator.

    The other standard SCI module is available for communication with the BQ part.