Search found 78 matches

by wurstnase
Sun May 05, 2019 12:17 pm
Forum: STM32 Support
Topic: USB on STM32F103 blue pill
Replies: 15
Views: 505

Re: USB on STM32F103 blue pill

When it helps to have a working USB-CDC example for the blue pill, I could upload something.
by wurstnase
Tue Apr 16, 2019 6:56 pm
Forum: Bug Reports
Topic: LTO and weak definitions Topic is solved
Replies: 2
Views: 131

Re: LTO and weak definitions Topic is solved

Hmmm... In my case it's not chibi-related. I have a startup code from st. And the SysTick is weak.
I can see, that the interrupt handler in chibi are also weak in assembler (vector.S).
by wurstnase
Tue Apr 16, 2019 1:19 pm
Forum: Bug Reports
Topic: LTO and weak definitions Topic is solved
Replies: 2
Views: 131

LTO and weak definitions Topic is solved

Hi, I don't know if ChibiOS is affected. But I just jumped over an GCC bug again. If you have an assembler file, which has weak symbols, and the linker will see this weak object file after the regular strong implementation, it will drop it. Check also: https://bugs.launchpad.net/gcc-arm-embedded/+bu...
by wurstnase
Wed Feb 06, 2019 3:07 pm
Forum: Bug Reports
Topic: Doxygen struct_base_sequential_stream.html Page Not Found Topic is solved
Replies: 9
Views: 436

Re: Doxygen struct_base_sequential_stream.html Page Not Found Topic is solved

Probably you want some more actual documents.
http://www.chibios.org/dokuwiki/doku.ph ... tion:start

The one you get from Google(?) is somehow outdated.
by wurstnase
Sat Feb 02, 2019 7:59 pm
Forum: Development and Feedback
Topic: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1
Replies: 8
Views: 592

Re: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1

Here is the excel file with all results. Simply copy a column C to I into B for compare.
by wurstnase
Sat Feb 02, 2019 1:37 pm
Forum: Development and Feedback
Topic: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1
Replies: 8
Views: 592

Re: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1

Here we go:

Os
chibios_0s.jpg

O2
chibios_02.jpg

Ofast
chibios_0fast.jpg
by wurstnase
Fri Feb 01, 2019 7:31 pm
Forum: Development and Feedback
Topic: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1
Replies: 8
Views: 592

Re: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1

I could make some more tests also with Ofast.

GCC 6 is available from ARM. But GCC 5 only for 32bit linux. I found a 5.3. 64bit.

Probably after this weekend.
by wurstnase
Fri Feb 01, 2019 9:53 am
Forum: Development and Feedback
Topic: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1
Replies: 8
Views: 592

Re: [INFO] Results with GCC 8.2.1 vs GCC 7.3.1

I like benchmarks. Yellow marked compiler are not from ARM (bleeding-edge).
Board used is a Nucleo F446RE.

chibios_02.jpg

chibios_0s.jpg
by wurstnase
Thu Jan 31, 2019 3:46 pm
Forum: Bug Reports
Topic: Git not tracking Topic is solved
Replies: 32
Views: 4035

Re: Git not tracking Topic is solved

The latest stable_19.1.x is missing currently.
by wurstnase
Tue Nov 13, 2018 2:38 pm
Forum: STM32 Support
Topic: STM32F0 ADC Example not working?
Replies: 3
Views: 368

Re: STM32F0 ADC Example not working?

Instead of -O0 you could compile it with -Og which could be a little bit more optimized while being able to debug the code.

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