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Choice paralysis and 3216 programmers
So I didn't actually read carefully enough to notice that 3216s don't use ISP anymore, so I need a UPDI programmer, and possibly want one that's HV-capable. And there's... a lot....
Saturday, 2 January 2021 - 00:50
attiny3216 fuse calculators, etc?
So, I got a couple of 3216s to experiment with, because they seem to be cheaper-but-more-powerful than the older chips, but they aren't among the things listed in the fuse...
Friday, 18 December 2020 - 21:05
attiny84 i2c -- what speeds can/should I expect?
I'm using the Arduino TinyWireS library, which is a pretty thin wrapper on top of Donald Blake's usi_twi implementation based on the AVR312 app note.   Observed behavior: If...
Wednesday, 16 December 2020 - 00:01
What's the A?
Was looking at chips, and noticed that the "ATTiny84A" is significantly cheaper than the "ATTiny84", but I can't find actual spec differences.   So for instance, on Microchip...
Sunday, 6 December 2020 - 19:20
Dragon hanging at boot with yellow LED
I have an AVR Dragon, which I've been using to flash AVR chips. It "stopped working" recently; symptoms are diagnostics about being unable to talk to it in ISP mode from avrdude,...
Friday, 27 November 2020 - 18:45
Using an AVR Dragon with ISP headers
So, I've been reading the Dragon docs, and I've been reading threads, and I clearly don't know *something* but I don't know what it is that I don't know.   I found an AVR...
Monday, 2 November 2020 - 23:32
Trying to make my own USBTiny
Okay, this is probably above my skill level, really, but it looked fun. I have a Sparkfun USBTiny. It works. I made an attachment for it which has a pair of ZIF sockets and is...
Saturday, 31 October 2020 - 20:50
Functions within functions (lambdas)
Note this thread started at https://www.avrfreaks.net/forum/... where a passing comment mentioned the possibility of using "functions within functions" in C. That triggered the...
Tuesday, 19 June 2018 - 04:58
SPLIT: Defining an Instant
awneil wrote: Increase wrote:I didn't realize I can destroy the sensor in an instant (almost?) any electronic component will be destroyed "in an instant" by gross abuse like...
Tuesday, 2 January 2018 - 06:45
atmega32u4's "six" programmable endpoints
I'm working with some code that sets up USB communications on an Atmega32u4. According to the specs, that has "six" endpoints. Studying existing code and USB descriptor tables, it...
Sunday, 3 December 2017 - 22:17
Newbie questions: When, if ever, do I need a high-voltage programmer?
So I've found various things asserting that you sometimes need a high voltage programmer. I saw one post (sadly, I can't remember where) asserting that all the advice saying you...
Sunday, 3 December 2017 - 22:00