azonenberg changed the topic of #scopehal to: libscopehal, libscopeprotocols, and glscopeclient development and testing | https://github.com/azonenberg/scopehal-apps | Logs: https://freenode.irclog.whitequark.org/scopehal
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<d1b2> <david.lenfesty> okay, confirmed I can transmit PD over CC lines.
<d1b2> <david.lenfesty> okay, confirmed I can transmit PD over CC lines.
<d1b2> <david.lenfesty> turns out I'm just bad at writing drivers
<d1b2> <david.lenfesty> turns out I'm just bad at writing drivers
<d1b2> <david.lenfesty> I'm gonna clean up my bodges so they can survive shipping then drop the most feature-complete board off at the post office
<d1b2> <david.lenfesty> I'm gonna clean up my bodges so they can survive shipping then drop the most feature-complete board off at the post office
<d1b2> <david.lenfesty> I'll also get a scope capture so someone can test a decoder on it
<d1b2> <david.lenfesty> I'll also get a scope capture so someone can test a decoder on it
<azonenberg> ok great
<azonenberg> ok great
<azonenberg> Is that board usable as is, or do i need a mating board for it to talk to?
<azonenberg> Is that board usable as is, or do i need a mating board for it to talk to?
<azonenberg> i forget if it had one port or two
<azonenberg> i forget if it had one port or two
<d1b2> <david.lenfesty> you'll need a mating board
<d1b2> <david.lenfesty> you'll need a mating board
<d1b2> <david.lenfesty> I have 3 built
<d1b2> <david.lenfesty> I have 3 built
<azonenberg> OK. So in that case i guess i'm going to try and throw together a sink board that can draw power from this board
<azonenberg> OK. So in that case i guess i'm going to try and throw together a sink board that can draw power from this board
<azonenberg> maybe that can be a weekend project or something
<azonenberg> maybe that can be a weekend project or something
<azonenberg> since it doesnt seem like it's useful in isolation
<azonenberg> since it doesnt seem like it's useful in isolation
<d1b2> <david.lenfesty> I can chuck the extra PCBs in if you want, I got 5 from JLC
<d1b2> <david.lenfesty> I can chuck the extra PCBs in if you want, I got 5 from JLC
<azonenberg> oh perfect
<azonenberg> oh perfect
<azonenberg> just one will be sufficient
<azonenberg> just one will be sufficient
<azonenberg> i'll be doing a digikey order soon for other stuff anyway so i'll ping you about the bom when i do that
<azonenberg> i'll be doing a digikey order soon for other stuff anyway so i'll ping you about the bom when i do that
<azonenberg> and just to recap, current state is that PD comms work but something fries on the power side when you turn on the 7V?
<azonenberg> and just to recap, current state is that PD comms work but something fries on the power side when you turn on the 7V?
<d1b2> <david.lenfesty> it happened when I plugged it in, the power switches weren't on at that point
<d1b2> <david.lenfesty> it happened when I plugged it in, the power switches weren't on at that point
<d1b2> <david.lenfesty> still haven't properly investigated root cause, I should have some time to do so by next weekend
<d1b2> <david.lenfesty> still haven't properly investigated root cause, I should have some time to do so by next weekend
<azonenberg> So it fries as soon as power is applied? or when the usb cable is inserted?
<azonenberg> So it fries as soon as power is applied? or when the usb cable is inserted?
<d1b2> <david.lenfesty> When the cable is inserted
<d1b2> <david.lenfesty> When the cable is inserted
<d1b2> <david.lenfesty> but those converter ICs have been incredibly sensitive otherwise
<d1b2> <david.lenfesty> but those converter ICs have been incredibly sensitive otherwise
<azonenberg> interesting
<azonenberg> interesting
<azonenberg> well, sounds like a respin is in the works then
<azonenberg> well, sounds like a respin is in the works then
<azonenberg> but let's try and find as many bugs as we can in v1 first
<azonenberg> but let's try and find as many bugs as we can in v1 first
<d1b2> <david.lenfesty> they're the first IC I've ever soldered that I haven't been able to recover
<d1b2> <david.lenfesty> they're the first IC I've ever soldered that I haven't been able to recover
<azonenberg> yeah i will definitely want to be looking at those transients if you havent found the cause by the time i get the boards assembled
<azonenberg> yeah i will definitely want to be looking at those transients if you havent found the cause by the time i get the boards assembled
<azonenberg> but between shipping delays and the time it will take me to get components from digikey + find time to assemble, you might have solved it lol
<azonenberg> but between shipping delays and the time it will take me to get components from digikey + find time to assemble, you might have solved it lol
<d1b2> <david.lenfesty> lol, should I hot glue everything so the bodges survive transit or should I not so it's easier to work on?
<d1b2> <david.lenfesty> lol, should I hot glue everything so the bodges survive transit or should I not so it's easier to work on?
<azonenberg> honestly i would use kapton tape or uv glue
<azonenberg> honestly i would use kapton tape or uv glue
<azonenberg> you've seen some of my rework right?
<azonenberg> you've seen some of my rework right?
<d1b2> <david.lenfesty> nope
<d1b2> <david.lenfesty> nope
<azonenberg> fixing an incorrect DFN footprint with 2-part epoxy tinted to match the soldermask
<azonenberg> fixing an incorrect DFN footprint with 2-part epoxy tinted to match the soldermask
<azonenberg> and flat copper wires
<azonenberg> and flat copper wires
<d1b2> <david.lenfesty> ah yes, also known as "better than mine " 😛
<d1b2> <david.lenfesty> ah yes, also known as "better than mine " 😛
<azonenberg> replacing a dc-dc with an LDO to troubleshoot some power integrity problems
<azonenberg> replacing a dc-dc with an LDO to troubleshoot some power integrity problems
<azonenberg> big wire secured with uv polyurethane, thermoset epoxy holding the chips in place
<azonenberg> big wire secured with uv polyurethane, thermoset epoxy holding the chips in place
<azonenberg> adding a decoupling cap across internal power pours
<azonenberg> adding a decoupling cap across internal power pours
<azonenberg> (that was hand cut with a dremel-esque tool, now that i have a 3-axis mill it would be a lot neater)
<azonenberg> (that was hand cut with a dremel-esque tool, now that i have a 3-axis mill it would be a lot neater)
<azonenberg> fixing lifted qfn pad
<azonenberg> fixing lifted qfn pad
<azonenberg> https://www.antikernel.net/temp/IMG_20200313_174305.jpg machining a via from a qfn thermal pad to the ground plane (original design had it floating incorrectly)
<azonenberg> https://www.antikernel.net/temp/IMG_20200313_174305.jpg machining a via from a qfn thermal pad to the ground plane (original design had it floating incorrectly)
<azonenberg> So yeah i do high end rework lol
<azonenberg> So yeah i do high end rework lol
<azonenberg> hot glue is effective, but a pain to work with and gets everywhere
<azonenberg> hot glue is effective, but a pain to work with and gets everywhere
<azonenberg> its much less controllable than UV glue which comes on as a gel and then cures when you want it to
<azonenberg> its much less controllable than UV glue which comes on as a gel and then cures when you want it to
<d1b2> <david.lenfesty> yeah hot glue is just what I happen to have
<d1b2> <david.lenfesty> yeah hot glue is just what I happen to have
<d1b2> <david.lenfesty> nicer glue for rework is now on my list (along with some IPA, sorry for all the flux residue lol)
<d1b2> <david.lenfesty> nicer glue for rework is now on my list (along with some IPA, sorry for all the flux residue lol)
<azonenberg> I actually ordered some Safewash Super. Backordered but should be nice for cleaning in the future
<azonenberg> I actually ordered some Safewash Super. Backordered but should be nice for cleaning in the future
<azonenberg> i'll probably be using it to deflux my probes in the ultrasonic before epoxy reinforcement
<azonenberg> i'll probably be using it to deflux my probes in the ultrasonic before epoxy reinforcement
<azonenberg> some stuff doesnt like ultrasound but passives and connectors shouldnt ind
<azonenberg> some stuff doesnt like ultrasound but passives and connectors shouldnt ind
<azonenberg> mind*
<azonenberg> mind*
<azonenberg> I usually use no-clean flux and only deflux hand soldered PTH connectors
<azonenberg> I usually use no-clean flux and only deflux hand soldered PTH connectors
<azonenberg> as those tend to have a lot of sticky residue
<azonenberg> as those tend to have a lot of sticky residue
<d1b2> <david.lenfesty> shipped, no clue what the ETA is but it's coming from Alberta so not far
<d1b2> <david.lenfesty> shipped, no clue what the ETA is but it's coming from Alberta so not far
<azonenberg> Great
<azonenberg> Great
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<_whitenotifier-4> [scopehal] Codysseus commented on issue #361: USB Decoder does not function correctly. - https://git.io/JmxoH
<_whitenotifier-4> [scopehal] Codysseus commented on issue #361: USB Decoder does not function correctly. - https://git.io/JmxoH
<_whitenotifier-4> [scopehal] Codysseus closed issue #361: USB Decoder does not function correctly. - https://git.io/JImil
<_whitenotifier-4> [scopehal] Codysseus closed issue #361: USB Decoder does not function correctly. - https://git.io/JImil
<codysseus> Turns out the decoder does work. I tested it on some data I collected recently (after it took some troubleshooting to compile the client).
<codysseus> Turns out the decoder does work. I tested it on some data I collected recently (after it took some troubleshooting to compile the client).
<azonenberg> codysseus: interesting
<azonenberg> codysseus: interesting
<azonenberg> well, let me know if you run into any new bugs
<azonenberg> well, let me know if you run into any new bugs
<azonenberg> We did fix a few things over the past few months so possible that solved your bug
<azonenberg> We did fix a few things over the past few months so possible that solved your bug
<codysseus> Sure thing. I do notice that the SYNC packet field doesn't span the full Bit sequence.
<codysseus> Sure thing. I do notice that the SYNC packet field doesn't span the full Bit sequence.
<codysseus> Also I wanted to say I appreciate the mouse based interface. It makes me think of plan 9
<codysseus> Also I wanted to say I appreciate the mouse based interface. It makes me think of plan 9
<azonenberg> how so?
<azonenberg> how so?
<codysseus> The emphasis on a mouse based interface
<codysseus> The emphasis on a mouse based interface
<monochroma> mmmm rc and pipe plumbing
<monochroma> mmmm rc and pipe plumbing
<codysseus> I mean, it's a tenuous comparison, but I guess I can't really put my finger on it
<codysseus> I mean, it's a tenuous comparison, but I guess I can't really put my finger on it
<azonenberg> of course as soon as you mention plan9 monochroma appears :p
<azonenberg> of course as soon as you mention plan9 monochroma appears :p
<azonenberg> The only plan9 i have any experience myself is the one from outer space. Not the one from bell labs
<azonenberg> The only plan9 i have any experience myself is the one from outer space. Not the one from bell labs
<codysseus> Ah yeah I haven't used that myself. I just did some of the bootcamp from SDF
<codysseus> Ah yeah I haven't used that myself. I just did some of the bootcamp from SDF
<monochroma> what's weird is everyone always remembers plan9, but no one talks about inferno, which in my opinion was a much more ambitious and interesting OS
<monochroma> what's weird is everyone always remembers plan9, but no one talks about inferno, which in my opinion was a much more ambitious and interesting OS
<codysseus> Reading about it, it does sound pretty interesting. Perhaps the other Plan 9 projects are just more active.
<codysseus> Reading about it, it does sound pretty interesting. Perhaps the other Plan 9 projects are just more active.
<codysseus> Did y'all check out LibrePlanet this weekend?
<codysseus> Did y'all check out LibrePlanet this weekend?