Search found 9 matches

by windyyam
Wed Nov 11, 2020 8:27 am
Forum: Off topic
Topic: A Noob question, what's the best online source of break out boards & electronic parts in Australia?
Replies: 2
Views: 586

Re: A Noob question, what's the best online source of break out boards & electronic parts in Australia?

Using Google's site-centric approach: https://www.google.com/search?r&q=cheap+electronic+parts+%22australia%22+site%3Aeevblog.com&oq=cheap+electronic+parts+%22australia%22+site%3Aeevblog.com Ray Ah, find it https://www.eevblog.com/forum/chat/purchase-of-electronics-components-in-australia/ Should a...
by windyyam
Tue Nov 10, 2020 11:36 pm
Forum: Off topic
Topic: A Noob question, what's the best online source of break out boards & electronic parts in Australia?
Replies: 2
Views: 586

A Noob question, what's the best online source of break out boards & electronic parts in Australia?

Hi, I moved to Sydney this year, and I decided to play with microcontrollers in my spare time. I used to buy them in taobao when I was in china where there are infinity supplement of them. I've tried aliexpress here, but the ship and deliver time can be up to 1 or 2 months, sometime I can't even tra...
by windyyam
Wed Oct 28, 2020 9:56 pm
Forum: General discussion
Topic: WHICH CORE?!
Topic: WHICH CORE?!
Replies: 20
Views: 1548

Re: WHICH CORE?!

The STM Official core for Arduino is a set of wrappers around industrial-strength commercial code and is suitable for newbies as well as seasoned programmers. It allows projects to utilize Arduino methodology for prototyping under ArduinoIDE and allows professionals to move to the STM complete tool...
by windyyam
Wed Oct 28, 2020 11:38 am
Forum: General discussion
Topic: WHICH CORE?!
Topic: WHICH CORE?!
Replies: 20
Views: 1548

Re: WHICH CORE?!

It's not that tricky. digitalWriteFast(digitalPinToPinName(pin),val); This actually works, thank you. To tell you the truth I'm confused. Aren't digitalWrite already calling digitalWriteFast? How they are making difference? Edit: I've write a sketch to compare with different method, only to be more...
by windyyam
Wed Oct 28, 2020 11:18 am
Forum: General discussion
Topic: WHICH CORE?!
Topic: WHICH CORE?!
Replies: 20
Views: 1548

Re: WHICH CORE?!

but for some reasons O2 and LTO seems not working on ST core so I don't know what that will be. Don't know why it does not work on your side. Which arm non eabi you used ? I think I'm using the 1.9.0 STM core from the Board Manager so the arm toolchain come with is 9.2.1-1.1. The O2 works, but not ...
by windyyam
Wed Oct 28, 2020 8:35 am
Forum: General discussion
Topic: WHICH CORE?!
Topic: WHICH CORE?!
Replies: 20
Views: 1548

Re: WHICH CORE?!

Try digitalWriteFast(PC_13,HIGH); digitalWriteFast(PC_13,LOW); Yes that would do the work. But it's a bit tricky as it does not use the same pinname. If someone's really in need for IO speed they probably manipulate port register instead. Just for compatible reasons if digitalWrite with normal Pin ...
by windyyam
Wed Oct 28, 2020 6:15 am
Forum: General discussion
Topic: WHICH CORE?!
Topic: WHICH CORE?!
Replies: 20
Views: 1548

Re: WHICH CORE?!

I have question about the 2 cores too, is there a test for performance? Which one is overall faster? And the storage/memory consumption? To my knowledge, there is no direct comparison. Consider the monolithic nature of libmaple (Roger's core), my suspicion is that Roger's core will be the smaller c...
by windyyam
Wed Oct 28, 2020 6:01 am
Forum: General discussion
Topic: WHICH CORE?!
Topic: WHICH CORE?!
Replies: 20
Views: 1548

Re: WHICH CORE?!

I have question about the 2 cores too, is there a test for performance? Which one is overall faster? And the storage/memory consumption? Roger's core uses a lot more RAM and Flash to build the final binary file. In this matter, STM32 Official Core is way better, thus if your sketch needs RAM space,...
by windyyam
Tue Oct 27, 2020 11:58 am
Forum: General discussion
Topic: WHICH CORE?!
Topic: WHICH CORE?!
Replies: 20
Views: 1548

Re: WHICH CORE?!

I have question about the 2 cores too, is there a test for performance? Which one is overall faster? And the storage/memory consumption?

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