Skip to main content
gajraj
Associate
March 9, 2018
Question

Two LPUART configuration in STM32L0

  • March 9, 2018
  • 3 replies
  • 1544 views
Posted on March 09, 2018 at 13:22

Hi All,

PLease let me know ,if its possible to configure two UART as LPUART in STM32L0. If yes ,how to proceed.

Thanks,

Ut

    This topic has been closed for replies.

    3 replies

    Tesla DeLorean
    Guru
    March 9, 2018
    Posted on March 09, 2018 at 13:38

    Which part number and footprint specifically?

    The Data Sheet should indicate the availability of an LPUART1 and LPUART2

    Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..
    Tilen MAJERLE
    ST Employee
    March 9, 2018
    Posted on March 09, 2018 at 13:51

    Hello

    Mahadoria.Gajraj_Sin

    ‌,

    LPUART peripherals are dedicated and are not the same as U(S)ART peripherals. If your specific part number includes 2 LPUART peripherals, you can use both at the same time.

    Best regards,

    Tilen

    gajraj
    gajrajAuthor
    Associate
    March 14, 2018
    Posted on March 14, 2018 at 08:18

    I am using Murata LoRa module having STM32L072 inside.

    Andrew Neil
    Super User
    March 14, 2018
    Posted on March 14, 2018 at 11:15

    So, as

    Turvey.Clive.002

    ‌ and

    Majerle.Tilen

    ‌ have just said, take a look in the

    datasheet for the

    STM32L072

    chip which is within theMurata LoRa module - that will tell you whether the particular chip actually has two LP UARTs inside it.

    If

    the chip does have two LP UARTs inside it, then the chipdatasheet

    will also tell you whether the particular package makes theLP UART signals accessible on pins.

    In addition, as the chip is within a module, you will also have to study the module's datasheet- to see if the modulemakes theLP UART signals accessible on its external pins.

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.