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  • Information on the Cortex-M7

    I believe that many of us are interested in the ARM Cortex-M7.

    Recently, jyiu posted a status update, where I asked a couple of questions about the architecture.

    A few questions on the subject was also asked in the Interview and Question Time with Joseph…

  • system requirements

    what are the minimum hardware requirements to setup wifi on arm-7 processors.

  • Cortex M7 DSP moving average UMAAL

    Hello,

    I am looking to do a moving average function using DSP instructions of ARM Cortex M7. Unfortunately I couldn't find a direct example. My goal is to have variables for

    - the sum

    - the new value

    - the oldest value

    Then the algorithm is sum =…

  • mismatch between ARMv7-M ref manual and core_cm7.h

    The ARMv7-M reference manual notes there eight ITM trace enable registers called ITM_TER0 to ITM_TER7.  However, core_cm7.h only has one ITM_TER register.  Can you clarify?  Is it an error in core_cm7.h?

  • DMB, DSB, ISB on Cortex M3,M4,M7 Single Core parts

    I have been reading through the ARM documentation on memory and instruction barriers. 

    I have read that the single core ARMv7-M parts do not reorder instructions, as such the DSB and ISB are not needed, is this correct? 

    I have also read the same about…

  • Is a DMB required between loading BASEPRI and storing BASEPRI_MAX?

    Hi,

    I have a question regarding BASEPRI, BASEPRI_MAX, and DMBs as they relate to both the V7-M and V7E-M architectures.

    Let's say I have the following assembly,

    // stuff
mrs r0, BASEPRI
msr BASEPRI_MAX, #3
// more stuff

    Is it necessary to put a…

  • When an exception is taken into account

    Hi

    Related to ARMv7-M architecture:

    I am searching through all infocenter documents but still cannot find anything and answer this question: "When an exception is taken into account?" I mean, are exceptions only serviced after the current instruction…

  • Can't understand the difference between armv7e-m and armv7e-m-pic?

    Hello people. I'm trying to do libgcc extraction for hard FPU's for k70 tower board. However, when I look at the libgcc library for arm targets, I find armv7-m, armv7e-m and armv7e-m-pic. I'm able to deduce from the armv7-m reference manual that the difference…

  • Updated ARMv7-M architecture reference manual for Cortex-M7 ?

    Has an updated v7m architecture reference been published yet?