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MSPM0G3505: CAN UART bridge with MSPM0G3505SRHBR

albgarc2014
Genius 3520 points
Part Number: MSPM0G3505
Other Parts Discussed in Thread: LP-MSPM0G3507, SYSCONFIG

Tool/software:

Hi TI, 

I need to use the UART-CAN bridge application.

I want to use the MSPM0G3505SRHBR (VQFN-32pin).

1-) Is it easy to migrate the project from MSPM0G3507SPMR (LQFP-64pin) to MSPM0G3505SRHBR (VQFN-32pin) MCU?

2-) The GPIO used for the UART-CAN bridge on the UART side are PA10(TX) and PA11(RX), right?

3-) I don't need analog pins. I can eliminate in my design R3 and C8 from LP-MSPM0G3507 (R3 connected to PA21_VREF- and C8 connected to PA23_VREF+), right?

4-) Can I use the crystals: SF32WK32768D31T002 and K2B400000810 with external 22pF capacitors? I attach the schematic and the crystals link.

SF32WK32768D31T002 TKD | C271654 - LCSC Electronics

K2B400000810 KYX | C2835990 - LCSC Electronics

Thanks very much. Best Regards. 

  • +1
    TI__Mastermind 25690 points

    Hi Albgarc2014,

    You can easily migrate to other device variants with the switch tab in SysConfig.

    1. Click on the device on the top right to pull up the device view
    2. Press switch, select your device
    3. Verify the device in the project configuration tab

    PA10 and PA11 are the UART pins used in the MSP Subsystem, can_to_uart_bridge.

    You can remove the capacitor for VREF if you are not using the internal or an external reference.

    For clock capacitor choice see the MSP430 Crystal Oscillators guide. The formula for cap selection are CL1 = (2 × CLoad) – CParasitic 

    Regards,
    Luke