02:06 <davidrysk[m]> huh looks like Altera USB Blaster is somewhat popular to clone. I need to interface with CPU32 BDM (e.g. MC68340) and came across this: https://github.com/Najsztub/BDM_UsbBlaster

02:06 <whitequark[cis]> Xylinx

02:08 <whitequark[cis]> code looks quite useful

02:08 <whitequark[cis]> https://github.com/Najsztub/BDM_UsbBlaster/blob/master/pCode/BDM.py this in particular

02:09 <davidrysk[m]> yep

02:09 <davidrysk[m]> I don't need single-step, just the ability to poke registers and read/write memory

02:10 <davidrysk[m]> Do you think this would be easy to port to Glasgow?

02:11 <davidrysk[m]> I only found out about it today. I had been planning to build a parallel BDM cable but this looks so much nicer

02:12 <whitequark[cis]> yes, altho I will suggest you wait until I release the (re-)engineered SPI/QSPI flash applet

02:12 <whitequark[cis]> because it will give you much better performance while being easier to program

06:50 <whitequark[cis]> for comparison, at the maximum supported frequency, memory-25x takes 9.361 seconds to read the same range

06:50 <whitequark[cis]> actually hold on

06:51 <whitequark[cis]> nevermind, i had autoflush on for debugging

06:52 <whitequark[cis]> okay, this is more like it: doubling of throughput with every doubling of interface width

06:52 <whitequark[cis]> so this is 26x faster

06:52 <galibert[m]> nice

06:53 <whitequark[cis]> in principle i could make it twice as fast as that (so, 52x total)

06:53 <whitequark[cis]> but this requires DDR buffers, and the glasgow framework is currently hella weird about buffers

06:53 <galibert[m]> you need to convert to the new Port stuff?

06:53 <whitequark[cis]> correct. Glasgow will have its own PortLike, I think

06:54 <galibert[m]> Glasgow is a good testbench for amaranth and vice versa :-)

06:54 <whitequark[cis]> yes

06:54 <whitequark[cis]> altho most of the latest Amaranth changes benefit Glasgow without me explicitly intending to do that

06:54 <whitequark[cis]> they're just that generally useful

06:56 <whitequark[cis]> also, the JTAG core might receive a similar 52x speedup

06:57 <whitequark[cis]> also, the way the new QSPI stuff is designed lets you take it past a 100x speedup

07:12 <_whitenotifier-9> [glasgow] whitequark opened pull request #586: [WIP] QSPI controller applet - https://github.com/GlasgowEmbedded/glasgow/pull/586

07:32 <whitequark[cis]> I think the coolest bit is that this methodology actually makes it easier to write interfaces at the same time as making them faster

07:33 <whitequark[cis]> and the code is more readable

07:33 <whitequark[cis]> it's a win/win/win situation

07:33 <galibert[m]> Indeed

07:33 <whitequark[cis]> key trick: pipeline I/O-associated metadata together with the actual I/O states

07:34 <whitequark[cis]> you do this and suddenly your bus controller doesn't have to care at all about your out-to-in latency

07:34 <galibert[m]> that's nice

07:34 <whitequark[cis]> the I/O basically becomes a FIFO that replaces o+oe with i

07:36 <galibert[m]> huhuhu

08:51 <_whitenotifier-9> [glasgow] neuschaefer opened pull request #587: protocol.nbd: implement Network Block Device server. - https://github.com/GlasgowEmbedded/glasgow/pull/587

09:02 <_whitenotifier-9> [glasgow] whitequark commented on pull request #587: protocol.nbd: implement Network Block Device server. - https://github.com/GlasgowEmbedded/glasgow/pull/587#issuecomment-2182331301

09:19 <_whitenotifier-9> [glasgow] neuschaefer commented on pull request #587: protocol.nbd: implement Network Block Device server. - https://github.com/GlasgowEmbedded/glasgow/pull/587#issuecomment-2182361823

10:29 <josuaH[m]> Perfect for pushing a button of a board, but using USB+jumper/soldered wire instead of your finger.

10:30 <benny2366[m]> but why use a 120$ piece of kit when you can do the same stuff with an arduino for like 10$?

10:31 <benny2366[m]> but i'm probably missing a bigger picture

10:32 <whitequark[cis]> is there a link i'm missing?

10:34 <whitequark[m]> test

10:34 <whitequark[cis]> test

10:34 <whitequark[cis]> ok, I'm very confused about the bridge breakage

11:32 <nemanjan00[m]> Mostly because I want to carry only glasgow

13:42 <tomkeddie[m]> Agreed but variable voltage is a big feature of Glasgow.

13:45 <benny2366[m]> for such a simple task the voltage will be either 3v3 or 5V but mostly 3v3 nowadays but heyow the OP knows what he is doing or atleast I hope he is XP

13:46 <benny2366[m]> * what he/she/they is

13:46 <benny2366[m]> * what he/she/they is, * hope he/she/they is

14:58 <huntersvonnegut[> I just received a message that my Glasgow has shipped, but it went to an old address. For some reason, I was under the impression that they would send an email to confirm my address was still valid. I don't know where I read this, but to be fair I filled it in years ago. What's the best way to handle this? I just got the notification a few minutes ago.

15:01 <sigstoat[m]> great first (or maybe third) applet to write learn how to do it! 🙂

15:14 <omnitechnomancer> When others have had similar queries I remember them being directed to contact CrowdSupply Support.

18:00 <cyborg_ar> Anyone thought about making an applet that can "play back" vcd captures on the io pins? Like a reverse logic analyzer

18:25 <qwertyface[m]> Apologies if this is an FAQ, but I'd like to get some probe hooks to go with my Glasgow, but don't really know what I'm looking for (I'm a bit of an electronics noob). Can anyone recommend something? I don't imagine I have any special requirements; I'm not going to be playing with tiny components or anything.

18:32 <sigstoat[m]> really just depends on what sort of connector you want on the other end. searching for "dupont jumper" on amazon will find you a bunch of the simplest possible thing.

18:33 <sigstoat[m]> "dupont test hook female" will find another potentially useful thing

18:36 <qwertyface[m]> Just knowing the right words is a big help. This is what I was looking for.

18:40 <qwertyface[m]> Without the word Dupont, you get a lot of coat hooks

18:40 <sigstoat[m]> hah

18:45 <benny2366[m]> 246tnt (@_discord_596068704471482370:catircservices.org) has a specifick brand of test hooks that he uses irc, he might be able to help?

19:26 <jan2642[m]> https://sigrok.org/wiki/Probe_comparison

19:38 <thomasflummer[m]> An alternative to hooks, are needles like the PCBite from Sensepeek, but they are a bit more expensive, though really neat for some of the more tricky cases...

20:11 <duskwuff[m]> One newer option that isn't on that list is "SDK08 test clips", available at your favorite Chinese outlet. Similar design to some of the high-end probes but much less expensive

20:17 <fishmonger[m]> Reprinted a smaller case for the Glasgow today. Worked out OK so I've published it on Printables.

20:17 <fishmonger[m]> https://www.printables.com/model/919510-gridfinity-stoage-box-for-glasgow-interface-explor