With the proper build flags, could you share some more step-by-step info on On this topic, you said that a special (sub)menu is required for compiling To replace the MegaCoreX's Wire.h library with the one from DXCoreĪnd sounds like there are a lot of improvements to it. Since there was no communication going on. Situation where an I2C sensor froze and the entire MCU stopped as well
I'm also looking forward to having this feature implemented, had a When you tell some people that, they act like you told them the sky was green.
Arduino while loop timeout full#
The release I'm in the process of wrapping up right now is going to contain the FIFTH FULL REIMPLEMENTATION of the master baud rate calculation (how many times have people gotten you to reimplement tat? twice only I thought?, because people keep whining about it not being perfect and coming up with measured cases where ti's way off (nevermind the fact that on the new hardware, there is simply no way to specify the exact baud rate, because it considers the rise and fall time of the I2C lines, we can just try to make reasonable assumptions and hope it's pretty close. I think we (mostly he) did a pretty good job of it. Too bad if the timing critical thing that requires deterministic timing itself is an interrupt! The version I use also gets ported between DxCore and megaTin圜ore, with the only changes being in the docs, so it's gotta be usable on 2k parts while leaving room for at least minimal functionality. We (myself and the main developer who did the rewrite, I'm not going to tag him over here because I've been tagging him into way too many conversations latel) were pretty pissed that Arduino came out with an implementation of a timeout right at the same time we did (of course, naturally, a much less efficient one that would cause compatibility problems with the rest of the core I think it depended on millis or micros, which is obviously a no-no on my cores, - disabling millis/micros is one of the most important tools submenu options on my cores because otherwise you can't do anything truly timing critical while interrupts are disabled enabled. There's one last change going in before it's will be believed to be done, and that is that we found a way to reduce the SRAM footprint in some cases. MX682X put together a killer reimplementation of Wire that lowers flash usage, supports simultaneous master and slave, (with or without dual mode), supports the slave address mask, secondary address, or general call and provides a way to find out what address triggered the interrupt, and I tacked on two unobtrusive API extensions, to see if there's a transaction in progress (so you can check before sleeping) and to count how many bytes the master read, so your I2C slave can use the register interface model like 99% of other I2C devices.
and a bunch more is covered in the readme too. that needs to be done to make it work over here, the new features are all covered in the readme.
Arduino while loop timeout code#
(towards the end of the page he has a circuit diagram and full code example).Consider jacking the new the version of Wire from DxCore, you need to add a tools submenu to select whether build,extra_flags contains -DTWI_MORS (master or slave ) or -DTWI_MANDS (master and slave) - but other than that, there's not much.
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