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[HARD] Atmega328 Hardware Design - The Right Way
Thanks, that explanation helps a lot. I think what I still don't understand is what "too far away from the microcontroller" means in this context. Is that distance? How many other...
Friday, 9 April 2021 - 03:34
[HARD] Atmega328 Hardware Design - The Right Way
I know this is an old thread, but people keep linking to it.   I don't understand the significance of separate caps on pins 7, 20, and also on the reset pin. But "close to...
Monday, 5 April 2021 - 17:05
AVR
I would strongly recommend against a "flow chart". Flow charts are empirically not good tools for modeling the intent of software; they were invented as a proposed way to do it,...
Tuesday, 2 March 2021 - 16:32
Linux AVR C Programming
For what it's worth, I have mplabx, but I don't generally *like* IDEs, and I'd definitely still prefer to use the command line most of the time for software development. I'm more...
Monday, 8 February 2021 - 23:21
Choice paralysis and 3216 programmers
That's fair, I don't really have much reason to need to reuse that pin. It wouldn't have occurred to me that the PICkit would work with the AVR chips, just from the name. So, that...
Saturday, 2 January 2021 - 15:53
attiny3216 fuse calculators, etc?
Yeah, looks like there's been a LOT of changes. Also looks like I may need a dedicated UPDI programmer for these, and can't just keep using the ISP headers I've gotten used to,...
Friday, 18 December 2020 - 22:39
attiny84 i2c -- what speeds can/should I expect?
I ordered some 3216s to do some experimenting with, because it looks like they may have more comprehensive i2c hardware, and i always wanted to learn how to solder soic, where "...
Friday, 18 December 2020 - 18:41
attiny84 i2c -- what speeds can/should I expect?
Wow, that's much heavier weight than I was thinking.   I assigned 0x10-0x1F to instructions like clear screen, goto position, etc., and everything else is just "dump...
Friday, 18 December 2020 - 08:09
attiny84 i2c -- what speeds can/should I expect?
Yes, the ultimate goal is to make an I2C device which can drive an HD44780 or equivalent character LCD, but doesn't require the direct bit manipulation hacks found in stuff like...
Friday, 18 December 2020 - 01:39
attiny84 i2c -- what speeds can/should I expect?
Okay, progress! Went and rechecked everything AGAIN. Tried the same stuff with a bare attiny84 and a couple of wires, no LCD stuff, and... it worked! So I started bisecting, and...
Friday, 18 December 2020 - 00:36
attiny84 i2c -- what speeds can/should I expect?
I do not fully understand the "series resistors on pins" and "see which device is wiggling the bus" aspect of this. I'm a programmer, not an electronics engineer. Note, although...
Thursday, 17 December 2020 - 23:29
attiny84 i2c -- what speeds can/should I expect?
Apparently if I try to upload files I get a media uploader thing that does nothing for a while and then says that the machine I'm trying to reach is unavailable. Hmm. Okay, here...
Thursday, 17 December 2020 - 21:35

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