On Fri, Jul 29, 2016 at 12:19 AM William Hermans <[email protected]> wrote:
> Granted, I do agree. That discussing low level micro-controller C code, > when describing Javascript is a bit odd. But in reality, the heavy lifting > is done in C, while Javascript just wraps the executable, and making it > perhaps easier to use ? > > Quite honestly, a couple of years ago I could not see myself doing > something of this nature from Javascript, In fact, I'm still somewhat of a > C "purist". But I do see a lot of good in Javascript, and mixing > implementations with C to make life easier. > I still "think" in C, but JavaScript really can be rather handy. As much as people seem to want to get rid of curly braces, I still appreciate them over making whitespace meaningful. Besides, everyone has a JavaScript interpreter readily at their disposal almost without exception. > > On Thu, Jul 28, 2016 at 9:14 PM, William Hermans <[email protected]> > wrote: > >> pwm: >> https://github.com/wphermans/Bonejs/blob/master/documentation/pwm-readme.md >> and >> devmem: >> https://github.com/wphermans/Bonejs/blob/master/documentation/devmem-readme.md >> >> Added. Both are very similar to using each from the cmdline. Personally, >> I think the devmem wrapper is very cool, but I'm not exactly sure how >> useful it would, or could be in a production environment. >> >> As stated in the last post. the devmem example twiddles the GPIO >> registers for the USR LEDs. Using GPIO_DATAOUT directly rather than >> GPIO_SETDATAOUT, and GPIO_CLEARDATAOUT. The result in my opinion while >> achieving the same end result, it more inline with low level >> micro-controller development C code. Thus perhaps easier for someone coming >> from a bare metal environment to grasp - Initially. >> >> Anyway, have at it, and have fun. >> >> On Tue, Jul 26, 2016 at 11:33 PM, William Hermans <[email protected]> >> wrote: >> >>> Oh, and right. The Cylon blink pattern uses ~5-6% CPU. Which is not too >>> bad for a Nodejs app. I'll have to compare that with a C mmap() / /dev/mem >>> implementation, and see how it stacks up. >>> >>> On Tuesday, July 26, 2016 at 11:31:09 PM UTC-7, William Hermans wrote: >>>> >>>> >>>> I'll be adding a new wrapper file for devmem2.c for those of you who >>>> might be interested. I'm still skeptical whether this is very useful or >>>> not. But I've written an example that "toggles" the USR LEDs in a Cylon >>>> like pattern. I think at minimum that it could be used as a learning tool - >>>> Of how one can access ( read, and write ) to GPIO registers. >>>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/2b6850e2-0b29-42bb-ae64-12ac3d0c6f78%40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/2b6850e2-0b29-42bb-ae64-12ac3d0c6f78%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CALHSORqhGVi9VhxNuTNy6MORk2Z7kPc7Ev6wgOYoBDWwDZHMtw%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CALHSORqhGVi9VhxNuTNy6MORk2Z7kPc7Ev6wgOYoBDWwDZHMtw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CA%2BT6QPnQn%2B4TbqnvAX1UwxRWwpj2XiaW3PCtJ15V3fh%3DkSRaRQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
