About Robert Poor

Robert Poor · 2022-07-10

I thought this was a manifestation of the previously reported bug Multiple definition error after STM32CubeIDE 1.9.0 update, but adding -fcommon to my compiler flags didn't fix it.The error message is:multiple definition of `SystemCoreClock'multiple ...

Robert Poor · 2022-07-05

I built a project for the NUCLLEO-G431RB using STM32CubeIDE v 1.9.0. Somewhere along the line, it offered to upgrade to 1.10.0 which I accepted, and it also warned that my ws was tied to an older version, for which I opted to upgrade the ws. (Eithe...

Robert Poor · 2022-07-05

I've created an STM32 Project, selected the NUCLEO-G431RB board and generated the code. I've added a source folder to the project (mu_platform) and LINKED some .c and .h files into that folder. I selected mu_platform folder and right-clicked "Add/r...

Robert Poor · 2022-07-03

I'm new to the STM32L053R8, and I'm trying to emulate a configuration I've used on other ARM M0+ systems. Ideally, I want to maintain a 32 bit counter (physical or virtual) clocked at 32KHz so I have ~30 uSec resolution with a ~131K second roll-over...

Robert Poor · 2022-06-13

I've got a STM32L053 (on a Nucleo-Lo53R8). I'd like to drive TIM21 from the 32KHz clock, and gang it with TIM22 to form a 32 bit counter. But I'm confused on a few points.First question: how to drive TIM21 from 32KHz? The documents (RCC chapter, 7.2....

Robert Poor · 2022-10-09

@Pavel A. "But IIRC it has been fixed long ago."That may be true, but note that I reported this problem July 10, 2022 (not that long ago). Here's the version number and build date:STM32CubeIDEVersion: 1.10.0Build: 12671_20220627_1643 (UTC)

Robert Poor · 2022-10-09

Regarding the OP, note that I used CubeIDE, and I didn't specifically ask for two copies of system_stm32g4xx.c, but that's what CubeIDE generated. I had to manually exlude of of the two from the project to get it to compile.This seems like a bug.

Robert Poor · 2022-07-10

Update:For the nonce, my workaround is to simply exclude Core/Src/system_stm32g4xx.c from the build (so it uses the file from CMSIS instead). It compiled and linked without error.

Robert Poor · 2022-07-07

@Community member Thanks for the update interrupt hint.By the way, any idea why we're getting "slightly edited" copy/paste replies from previous replies (e.g. @ddjwk.1 and @kdfd.1 replies) -- are these bots or what?

Robert Poor · 2022-07-06

Duly noted and done -- thank you.

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multiple definition of `SystemCoreClock' (system_stm32g4xx.c included twice)

SystemInit, SystemCoreClock and AHBPrescTable suddenly undefined?

Including path to linked files doesn't work as expected

tickless wake from low power mode with 32 bit / 32768 Hz resolution

Driving TIM21 from 32KHz clock?

Re: multiple definition of `SystemCoreClock' (system_stm32g4xx.c included twice)

Re: multiple definition of `SystemCoreClock' (system_stm32g4xx.c included twice)

Re: multiple definition of `SystemCoreClock' (system_stm32g4xx.c included twice)

Re: tickless wake from low power mode with 32 bit / 32768 Hz resolution

Re: Including path to linked files doesn't work as expected