Search found 38 matches

by charlesrwest
Wed Sep 23, 2015 8:07 pm
Forum: ChibiOS/RT
Topic: Increasing tick resolution without affecting delay functions
Replies: 4
Views: 3348

Increasing tick resolution without affecting delay functions

Hello, I was hoping increase the tick frequency of my ChibiOS frequency by increasing CH_CFG_ST_FREQUENCY, but I've noticed that my calls to chThdSleepMicroseconds seem to be returning sooner when I increase that value. If I may ask, what is the best way to increase tick resolution (primarily so the...
by charlesrwest
Fri Sep 18, 2015 2:48 am
Forum: ChibiOS/RT
Topic: Linking errors with C++
Replies: 4
Views: 4726

Linking errors with C++

Hello, I experienced an odd intermittent problem where calling certain functions would suddenly cause the following errors to appear: /usr/lib/gcc/arm-none-eabi/4.8/../../../arm-none-eabi/lib/armv6-m/libg.a(lib_a-abort.o): In function `abort': /build/buildd/newlib-2.1.0+git20140818.1a8323b/build/arm...
by charlesrwest
Wed Jul 15, 2015 12:20 am
Forum: STM32 Support
Topic: STM32F072 -> Serial access for USART 3/4?
Replies: 1
Views: 1701

STM32F072 -> Serial access for USART 3/4?

Hello, I've been doing a project with the STM32F072B Discover board. I was planning to try out the serial interface for USART 4 on the board but it looks like SD4 was not defined. I looked in mcuconf.h to see if I could enable it, but it looks like there is only support for USART 1/2? /* * SERIAL dr...
by charlesrwest
Thu Jul 09, 2015 9:50 pm
Forum: ChibiOS/RT
Topic: Heap size, C++11 and THD_WA_SIZE in v3
Replies: 9
Views: 6716

Re: Heap size, C++11 and THD_WA_SIZE in v3

@barthess If I may ask, how do you go about doing that? Most of the tutorials I've read have you replace the new and delete member functions, which is fine for using with the heap but doesn't do so well for memory pools unless you can use the placement new operator. My attempts to use the placement ...
by charlesrwest
Thu Jul 09, 2015 2:48 pm
Forum: ChibiOS/RT
Topic: Heap size, C++11 and THD_WA_SIZE in v3
Replies: 9
Views: 6716

Re: Heap size, C++11 and THD_WA_SIZE in v3

Thanks for all the great responses! I've integrated the macro and will start taking a closer look at the C++ wrapper. Many of the posts I've read seem to indicate that you should stay away from the C++ standard library due to code size growth from templates, the requirement for dynamic memory alloca...
by charlesrwest
Wed Jul 08, 2015 8:57 pm
Forum: ChibiOS/RT
Topic: Heap size, C++11 and THD_WA_SIZE in v3
Replies: 9
Views: 6716

Heap size, C++11 and THD_WA_SIZE in v3

Hello! This is my first time building a real application with ChibiOS. I'm really liking the architectures and layout, but had a few small questions come up as I worked through the basics. Heap size: From what I've read, it looks like you can use the default heap allocator if CH_CFG_USE_HEAP has bee...
by charlesrwest
Wed Jul 01, 2015 6:05 pm
Forum: STM32 Support
Topic: Getting started with the STM32F072B-Discovery
Replies: 25
Views: 9194

Re: Getting started with the STM32F072B-Discovery

Awesome. I will keep working with the master branch then. This will be really cool. Thanks again.
by charlesrwest
Wed Jul 01, 2015 4:30 pm
Forum: STM32 Support
Topic: Getting started with the STM32F072B-Discovery
Replies: 25
Views: 9194

Re: Getting started with the STM32F072B-Discovery

Hey Giovanni, Thanks for the really fast response. 3.0 is close to being officially released but hasn't yet been, right? I cloned the Git repository and the demo there worked very well. If I may ask, should I clone the git repository or use one of the previews? Is the git master branch likely to hav...
by charlesrwest
Wed Jul 01, 2015 3:40 pm
Forum: STM32 Support
Topic: Getting started with the STM32F072B-Discovery
Replies: 25
Views: 9194

Getting started with the STM32F072B-Discovery

Hello! I'm trying to get started with the STM32F072B & ChibiOS. I've run into a few issues and was hoping to get some advice. I noticed that there is a demo for the STM32F051. I tried flashing it to my discovery board (using the ST-Link program from https://github.com/texane/stlink over the st-l...
by charlesrwest
Sat Mar 21, 2015 9:54 pm
Forum: General Support
Topic: Favorite USB enabled microcontrollers with ChibiOS support
Replies: 1
Views: 2083

Favorite USB enabled microcontrollers with ChibiOS support

Hello! If I may ask, what is your favorite USB enabled ARM based microcontroller that is supported by ChibiOS? I've been looking to find a microcontroller that I can use with most of my projects. Most of the things I am working on have a lot of software/hardware layers (robots!). I prefer to have a ...

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