![how to write c code to teensy 3.6 how to write c code to teensy 3.6](https://media.elektor.de/media/catalog/product/cache/9cc822bfc6a57f9729d464b8b5e0e0df/t/e/teensy_4.1_development_board_-_overview.jpg)
use a logic analyser and unused digital pins with digitalWriteFast to monitor time requirement of key parts of your program get first a functioning program with slowed down speed/ reduced performance(standard C/C++). I agree with all what is said, but would like to add: Or maybe something like "Teensy vs Arduino main difference FAQ" stating basic important differences like "DigitalWrite is there for compatibility reasons but we encourage you to use DigitalWriteFast instead". So I agree that a Knowledge database or wiki as said is the best way to go and is the fastest for the end-user when seeking a solution. But for example yesterday I opened a topic asking the same questions and until then I didn't know about DigitalxxxxFast! Which maybe is a fraction slower than low level programming in my code but does the job very fast as well and I would not have bothered with all the PORTX and PINX etc registers in the past if I knew its existence. And then I get into low-level programming. As you say I usually do all the hard work fast using the IDE commands and then I realize how much I have lost in speed because of the limitations. The RW I/O speed is something that eventually one will hit on after he has done some work on the project and if the project is serious indeed. Not sure if the new stuff is available yet or not.īut again this really depends on what you wish to do and where you want to spend your time. Like recently there has been a thread or two talking about progress on making some RTOS setups work on the T3.6. There also may be some other good starting points. Which is simply one move to one register. The code generated will be: CORE_PIN3_PORTCLEAR = CORE_PIN3_BITMASK But as for being faster? hard to say in all cases.įor example, if you do something like digitalWriteFast(3, LOW)
#How to write c code to teensy 3.6 free#
Then if you find some stuff that is interfering with your stuff, you always have the option to trim them out.Īs for using Registers, you are totally free to use any/all of them in the Arduino code. You have the option to use the Arduino IDE and/or you can setup to use make files, there are some Eclipse setups. do you wish to spend months just trying to get the basic hardware to work, or would you rather spend your time working on the particulars of your project.Īgain if it were me, I would be looking to start with something that works well, like the Arduino setup. To me, I guess it often depends on where you want to spend your time. Hopefully when the forum finally moves and we have a wiki, a bunch of these can be summarized up a wiki. It is sort of interesting to see, these types of requests come up reasonably often. But since you didn't give us any info at all about what you're trying to accomplish, this is the best answer I can give you. Of course, if you read those prior conversations you'll probably get the notion that doing everything from scratch probably isn't the best way to achieve your goals.
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It has tons of essential info about the ARM processor which isn't in Freescale's documentation.
![how to write c code to teensy 3.6 how to write c code to teensy 3.6](https://www.pjrc.com/teensy/card9a_rev1.png)
If you're really going to get into low-level programming, in addition to Freescale's reference manual, you really must read Joseph Yiu's book. To translate the Arduino pin numbers to native port names, refer to the schematic: