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rmteo
rmteo
Associate
September 26, 2011
Question

Is TIM2 on the Value Line a 32-bit Timer?

  • September 26, 2011
  • 4 replies
  • 1165 views
Posted on September 26, 2011 at 02:43

I noticed this in the user manual.  It also applies to the ARR and CCRx registers.

0690X00000602jgQAA.jpg
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    4 replies

    emalund
    emalund
    Associate III
    September 27, 2011
    Posted on September 27, 2011 at 17:05

    What I know as ''value line'' uses this manual where there are no ''two line register'' for T2

    RM0008

    Reference manual

    STM32F101xx, STM32F102xx, STM32F103xx, STM32F105xx

    and STM32F107xx advanced ARM-based 32-bit MCUs

    Erik

    rmteo
    rmteoAuthor
    Associate
    September 27, 2011
    Posted on September 27, 2011 at 17:31

    Try this one:

    0690X00000602jCQAQ.jpg

    Tesla DeLorean
    Tesla DeLorean
    Guru
    September 27, 2011
    Posted on September 27, 2011 at 18:03

    Rene is talking about the STM32F100xx manual, which does cryptically mention a 32-bit register set for TIM2, but only in the register descriptions. Everywhere else in the document it talks about 16-bit registers, and the library code does not special case TIM2 in any releases I've seen.

    It looks like it would be pretty easy to confirm/deny/validate if one bothered to poke at the registers, and stick a scope on the output.

    Release 4 of the manual does not have the same TIM2 32-bit reference, but older ones do.

    Current RM0041

    http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/REFERENCE_MANUAL/CD00246267.pdf

    RM0041 rel 3 from the internets

    http://www.galexander.org/stm32/stm32f100x-RM.pdf

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    rmteo
    rmteoAuthor
    Associate
    September 27, 2011
    Posted on September 27, 2011 at 18:28

    Looks like someone did a quick copy-and-paste from the STM32F20x UM.

    0690X00000602ixQAA.jpg

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