#avr Logs

Jan 05 2019

01:59 AM [1]MrMobius is now known as MrMobius
10:58 AM nabil_ is now known as nabil
04:09 PM eXeC64: Hi, I'm looking at using V-USB with an ATMega328p, and I'm having a little trouble with the 3.6V voltage restriction on the D+/D- USB lines. Due to the clockrate, my 328 needs to be powered at 5V. I've read http://vusb.wikidot.com/hardware but don't have the parts on hand for either solution A or B. Is there a reason I can't just use the 3V output pin of the mc and a couple of transistors to drive the D+/D- lines? It
04:09 PM eXeC64: seems obvious, but I can't see any examples of other people doing that, so I'm wondering if I've missed something.
04:54 PM eXeC64: Ah, I'm stupid. Can't do that because for current driven by 3V6 to go from C -> E, current driven by 5V would be going from B -> E.
05:56 PM LeoNerd: eXeC64: I'd suggest a USB-native chip, like a 32U4 (or U2 which arguably has better peripherals)
05:57 PM eXeC64: LeoNerd, Oh yeah. 32U4 does look quite nice for USB support
05:58 PM eXeC64: If I have a more serious project requiring USB I'd definitely go for that instead. This is just me messing around with V-USB after learning it was possible to do USB on the 328p directly
07:06 PM LeoNerd: Yeah.. it's *possible* but it's not very tidy... it's best avoided, really
09:00 PM proteusguy is now known as proteusguy-satri
11:10 PM day__ is now known as day