#avr Logs

Sep 27 2020

02:21 AM gruetze_ is now known as gruetzkopf
03:54 AM nabil: has anyone of you have had any experience with thingsboard?
03:56 AM nabil: I have a custom widget that triggers an RPC call on click (with a bunch of parameters from the widget form), that part is working fine.
03:56 AM nabil: What I want is to have a list widget where it shows all those events dynamically.
03:56 AM nabil: I tried using alarms, but the problem is that if an uncleared alarm already exists the following event will update it, which is not what I am looking for....I want both event 1 and event 2 to show up.
06:49 AM vmt: rue_mohr: do you believe the feds are gon' getcha?
11:34 AM rue_bed: no
11:37 AM cehteh_: made me curious and search for that vid's
11:38 AM vmt: he has plenty in twitter
11:40 AM cehteh_: usually i dont stalk people :D
11:41 AM cehteh_: anyway i may agree it sounds creepy, but it could be as well some physical condition?
11:42 AM vmt: https://twitter.com/RueNahcMohr/status/1299944750418542593
11:42 AM vmt: like this
11:43 AM vmt: perhaps it is
11:43 AM vmt: i would imagine putting it out there then would clear things out, because it is hard to even make out what you're saying, rue_mohr
11:44 AM cehteh_: weird that vid doesnt load for me
11:45 AM vmt: loads just fine for me. probably the usual, browser clear cache, spend 30 min chasing down all the shadow caches, hidden configs, whatever.
11:50 AM matrixstorm: may be interesting to AVR users: https://www.youtube.com/watch?v=o0rEzcKYzGw
12:01 PM cehteh_: lol
12:13 PM twnqx: AVR is known as a pretty often faked devicee
12:13 PM twnqx: margin is high enough to make it viable
12:14 PM cehteh_: yeah for 8 bitters they are pretty expensvie
12:14 PM vmt: not sure if "pretty expensive" even covers that lol
12:14 PM cehteh_: but i wonder how many chip fabs around the world are capable to make mcu's
12:15 PM twnqx: if you look at that image
12:15 PM vmt: most likely quite a few. you don't need anything close to state-of-the-art
12:15 PM twnqx: it's a standard cell chip
12:15 PM twnqx: at 8:13 in the video the zoom in the fake is large enough to see the unused standard cells
12:16 PM cehteh_: whats standard cells? something like fpga?
12:16 PM twnqx: kinda like that, yeah
12:17 PM twnqx: just for silicon. you write in your HDL, and instead of a mapping to an FPGA, you map to a standard cell library
12:18 PM twnqx: et voila, custom IC. not full custom though.
12:18 PM matrixstorm: but its not quite that simple
12:19 PM twnqx: it kinda is
12:19 PM matrixstorm: one can assume the orinignal development files weren't stolen from atmel
12:19 PM matrixstorm: so the whole chipe needs to be reverse engineerd
12:19 PM twnqx: so what
12:19 PM twnqx: nah, it's not
12:19 PM matrixstorm: plus redesignt and manufactured
12:19 PM vmt: no it doesn't really need to be reverse-engineered
12:19 PM twnqx: you just take it from the data sheet, AVR is simple enough
12:20 PM vmt: ^ this
12:20 PM twnqx: even cycle exact
12:20 PM matrixstorm: yeah, ok datasheet
12:20 PM matrixstorm: but you need to build a new chip design
12:20 PM matrixstorm: flash and eeprom
12:20 PM vmt: to an extent, but the tooling vastly helps
12:21 PM vmt: you think some chinese cad monger is particularly well paid?
12:22 PM matrixstorm: no but even than - you need some margin
12:22 PM twnqx: eeprom and flash are basically the same
12:22 PM matrixstorm: lot of investment
12:22 PM cehteh_: cycle exact would be trivial with avr's :D
12:22 PM twnqx: and if you look at the center, yes, standard cell libraries also have embedded RAM, and probably eeprom/flash
12:22 PM vmt: yup
12:23 PM twnqx: i looked into custom asics some time last year, and it would have been possible for ~10k€ if you take like 1000 chips
12:23 PM cehteh_: eeprom/flash dont need differnt production things than static circuits?
12:23 PM twnqx: nah
12:24 PM twnqx: if you want to get them real small, to get huge amoutns in, sure
12:24 PM twnqx: you need a different layer structure
12:24 PM twnqx: but in the end, it's just large capacitors :P
12:24 PM twnqx: except OTP, which is different
12:24 PM matrixstorm: all the non documented interfaces
12:25 PM matrixstorm: one wire debug
12:25 PM matrixstorm: etc
12:25 PM twnqx: you're really overestimating things
12:25 PM cehteh_: there arent much
12:25 PM twnqx: and dunno what all the 328p even has
12:25 PM cehteh_: the debugfire thing is reverse enginiered and the specs where avalable under nda .. i bet they are leaked anyway
12:26 PM cehteh_: debugwire
12:26 PM twnqx: but if flash generally needed different tech, no modern SOCs would be single chip solutions. it would be cheaper to run silicon interposed & multi die configurations than putting the same wafer into two different techs
12:26 PM twnqx: interposer*
12:29 PM twnqx: dunno how hard clock gating is in standard cell chips. i bet that is the reason for the high current consumption anyway :P
11:08 PM day_ is now known as day