Search found 1048 matches

by gbiz
Tue Oct 13, 2020 10:09 am
Forum: Music Tech DIY
Topic: [closed] Dervish: 12HP FV-1 euro FX
Replies: 744
Views: 71934

Re: [closed] Dervish: 12HP FV-1 euro FX

hi djamsia, sure. ping me an email.
by gbiz
Mon Oct 12, 2020 9:34 am
Forum: Music Tech DIY
Topic: [closed] µDervish 8HP FV-1 FX
Replies: 160
Views: 19469

Re: [closed] µDervish 8HP FV-1 FX

dubtoms, if you don't mind getting your own panel made up, I've still got a couple of PCB pairs left.
by gbiz
Wed Sep 09, 2020 4:43 am
Forum: Music Tech DIY
Topic: terminal tedium (raspberry zero, pi2, pi3 codec / pd thing)
Replies: 929
Views: 113893

Re: terminal tedium (raspberry zero, pi2, pi3 codec / pd thing)

There's also some bytes in the controller init sequence that determine the RAM to screen mapping. One changes the scan direction, the other the mapping so you can flip the screen without changing the drawing code. Similarly you can bake in the 2px offset. a cool - that would be one(or two) more byt...
by gbiz
Sat Aug 29, 2020 1:11 pm
Forum: Music Tech DIY
Topic: terminal tedium (raspberry zero, pi2, pi3 codec / pd thing)
Replies: 929
Views: 113893

Re: terminal tedium (raspberry zero, pi2, pi3 codec / pd thing)

Yes that could be it. I had a quick look into what could cause SIGILL on the Pi. Binaries built for ARMv7 or 8 would do this on an an ARMv6. File doesn't show the architecture the binary is built for, which is why they possibly all look the same, but "readelf -A " shows the cpu arch the binary was b...
by gbiz
Sat Aug 29, 2020 11:34 am
Forum: Music Tech DIY
Topic: terminal tedium (raspberry zero, pi2, pi3 codec / pd thing)
Replies: 929
Views: 113893

Re: terminal tedium (raspberry zero, pi2, pi3 codec / pd thing)

As nobody else has mentioned it, a general observation on this from a linux/unix perspective ... Whatever it is you are running there is being killed due to an illegal instruction (SIGILL, signal 4). pd was reporting the same thing in the logs on the previous page. As it's the only issue you're gett...
by gbiz
Sun Aug 16, 2020 4:57 pm
Forum: Music Tech DIY
Topic: [closed] µDervish 8HP FV-1 FX
Replies: 160
Views: 19469

Re: µDervish 8HP FV-1 FX

mager, there's a Mouser cart for the red ATMega programmer that has all the components you need. A link to the cart is at the top of the ATMega programmer BOM sheet. Or if you've got a teensy3 spare it's easy enough to build one out of one of those. Details are in the programmer directory. Don't use...
by gbiz
Sun Aug 16, 2020 4:32 pm
Forum: Music Tech DIY
Topic: performer (or is it per|former?) sequencer build
Replies: 735
Views: 45897

Re: performer (or is it per|former?) sequencer build

I took everything from 0 and I followed the instructions on this page: https://github.com/westlicht/performer/blob/master/README.md and I find myself stuck again in the previous step: "xx:performer xx$ make setup_stm32 (mkdir -p /Users/xx/performer/./build/stm32/debug && cd /Users/xx/performer/./bu...
by gbiz
Fri Aug 14, 2020 3:18 pm
Forum: Music Tech DIY
Topic: [closed] µDervish 8HP FV-1 FX
Replies: 160
Views: 19469

Re: µDervish 8HP FV-1 FX

There's no reason i can immediately think of why those 2 programs wouldn't exhibit it & others would. They use both left & right adc & dac channels, as do other programs. I'd start by investigating the issue with output 2. My guess is that'll be the cause of the hum. There's a section in the build g...
by gbiz
Thu Aug 13, 2020 7:42 am
Forum: Music Tech DIY
Topic: [ORDER] ACX Moog Parametric Equalizer
Replies: 140
Views: 23128

Re: [ORDER] ACX Moog Parametric Equalizer

Before you pass it on, that board looks like this one
Image
by gbiz
Tue Jun 16, 2020 5:57 pm
Forum: Music Tech DIY
Topic: performer (or is it per|former?) sequencer build
Replies: 735
Views: 45897

Re: performer (or is it per|former?) sequencer build

Back on MacOS, that "another process has device opened for exclusive access" is probably why it's failing. Another process is running that has the st-link device open & it's preventing your st-flash command from accessing it. (It might be worth updating libusb if that didn't get done when you instal...
by gbiz
Tue Jun 16, 2020 4:55 pm
Forum: Music Tech DIY
Topic: performer (or is it per|former?) sequencer build
Replies: 735
Views: 45897

Re: performer (or is it per|former?) sequencer build

Macports (like homebrew) provides up2date ports of a lot of the open source projects that MacOS doesn't include by default. If you've got brew installed then easiest is probably just install stlink using the brew installer (i think "sudo brew install stlink" will do that. Sorry for being a bit vague...
by gbiz
Tue Jun 16, 2020 4:10 pm
Forum: Music Tech DIY
Topic: performer (or is it per|former?) sequencer build
Replies: 735
Views: 45897

Re: performer (or is it per|former?) sequencer build

So here is my last attempt: Go into the "performer" directory OK Launch the VM: vagrant up OK Open a shell: vagrant ssh OK Follow the procedure described by gbiz (p13) : git clone https://github.com/westlicht/performer cd performer git submodule update --init make setup_stm32 cd build/stm32/release...
by gbiz
Thu Jun 04, 2020 6:34 am
Forum: Music Tech DIY
Topic: RS introducing a handling charge for smaller orders
Replies: 1
Views: 209

RS introducing a handling charge for smaller orders

I've just been trying to order some parts from RS & noticed no matter how much i added to the basket it added a £4.95 delivery charge, even though all items were marked as "free delivery" & the basket still had "place order before 8:30pm for free delivery". Turns out they're introducing a handling c...
by gbiz
Sat May 02, 2020 3:14 pm
Forum: Music Tech DIY
Topic: [closed] µDervish 8HP FV-1 FX
Replies: 160
Views: 19469

Re: µDervish FV-1 FX: ltd run SMD assembled full kits

No problem ! :)
I'll add "--force" to the doc so anyone else trying this will use that.
by gbiz
Sat May 02, 2020 2:33 pm
Forum: Music Tech DIY
Topic: [closed] µDervish 8HP FV-1 FX
Replies: 160
Views: 19469

Re: µDervish FV-1 FX: ltd run SMD assembled full kits

efluon, i've seen that here too. try adding "--force" to the dfu-programmer erase command. ie

dfu-programmer atmega32u2 erase --force
by gbiz
Sat May 02, 2020 3:28 am
Forum: Music Tech DIY
Topic: [closed] µDervish 8HP FV-1 FX
Replies: 160
Views: 19469

Re: µDervish: 8HP FV-1 euro FX

Edit: these kits are now all sold Something i've been meaning to do for a while, this cv-19 lockdown has given me the opportunity to put together a small number of µDervish full kits for sale ... * DSP & control PCBs with all SMDs factory pre-assembled. The ATTiny & EEPROM are programmed. The boards...
by gbiz
Thu Mar 19, 2020 1:24 pm
Forum: Music Tech DIY
Topic: Living VCO, anybody using 2 x modules?
Replies: 16
Views: 746

Re: Living VCO, anybody using 2 x modules?

I used TE Connectivity LR0204F series resistors, which are the correct physical size, they fit flush to the PCB & their legs fit the holes. I sourced mine from Farnell, but Mouser also stock them. The resistor bodies have to be 3.5 x 2mm to fit correctly. The body of a regular 0.125W resistor might ...
by gbiz
Tue Feb 18, 2020 11:39 am
Forum: Music Tech DIY
Topic: [closed] Dervish: 12HP FV-1 euro FX
Replies: 744
Views: 71934

Re: Dervish: 12HP FV-1 euro FX

I forgot, theres also "SpinCAD+Dervish.txt" in that same directory on how to use SpinCAD with dervish. That's probably closest to what you want to do here.

If you get it working & don't mind creating a basic text doc on how you did it, that others could use, i'd happily add it to the FAQs there.
by gbiz
Tue Feb 18, 2020 10:45 am
Forum: Music Tech DIY
Topic: [closed] Dervish: 12HP FV-1 euro FX
Replies: 744
Views: 71934

Re: Dervish: 12HP FV-1 euro FX

Dervish/uDervish will run any fv-1 binary, (same applies for any fv-1 based module). All you need to do is package them up into a Dervish format bank & upload them. There's a couple of FAQs that cover how to do this with the Dervish programming environment http://gbiswell.myzen.co.uk/dervish/DSP/doc...
by gbiz
Sat Feb 08, 2020 6:04 pm
Forum: Music Tech DIY
Topic: STLINK-V3SET
Replies: 11
Views: 1065

Re: STLINK-V3SET

One thing i just noticed i forgot to mention above, you'll need to create a udev rule file for the v3 in the vagrant image. In /etc/udev/rules.d/ you'll find 3 rules files with names beginning "49-stlinkv". You'll need to add a similar rule file for the v3 that contains the usb id for the v3. You'll...
by gbiz
Fri Feb 07, 2020 4:08 pm
Forum: Music Tech DIY
Topic: Multimeter suggestions?
Replies: 28
Views: 1739

Re: Multimeter suggestions?

Neil, if you don't mind sharing, can you remember where you got your 3478a calibrated ?. I really should get around to replacing the battery in mine before it runs down & it's cal cert expired a while back. Post battery swap would be a good time to get it done. Sure: https://www.absolutecal.co.uk/i...
by gbiz
Fri Feb 07, 2020 3:30 pm
Forum: Music Tech DIY
Topic: Multimeter suggestions?
Replies: 28
Views: 1739

Re: Multimeter suggestions?

For bench DMM, go for HP/Agilent/Keysight. I still reckon the best value-for-pocket-money is a calibrated HP 3478A. Look for a good one eBay and then get it calibrated (change the internal battery before you get it cal'ed). Last time I got mine calibrated cost me £69 which was less than half what I...
by gbiz
Fri Feb 07, 2020 3:19 pm
Forum: Music Tech DIY
Topic: Which tool for moving tiny trim pots..?
Replies: 6
Views: 379

Re: Which tool for moving tiny trim pots..?

is there a specific tool you DIY'ers use for this though (to turn these things)? just a tiny screw driver? You need a "trimmer adjustment tool". eg https://uk.rs-online.com/web/p/trimmer-resistor-adjustment-tools/8524614/ One end is a regular screwdriver blade, the other end has a recessed blade, g...
by gbiz
Tue Jan 28, 2020 7:09 am
Forum: Music Tech DIY
Topic: High quality 2.1mm x 5.1mm DC Input option?
Replies: 2
Views: 299

Re: High quality 2.1mm x 5.1mm DC Input option?

I've just been looking for something similar for a LED lighting project i've been working on. I needed 12V @ 5A panel mounted, something that won't budge once it's in. I've ended up using RS sku 487832. They're not the cheapest, but certainly match your requirement if you need something at that curr...
by gbiz
Sat Jan 25, 2020 10:34 am
Forum: Music Tech DIY
Topic: STLINK-V3SET
Replies: 11
Views: 1065

Re: STLINK-V3SET

... The Mutable VM won't see the STLINK-V3 at all even though it sees other USB devices. ... It sounds like you need to configure USB passthrough for the programmer USB id for the VM. Until that happens the host o/s will retain access to it. You can configure passthrough from the VirtualBox console...

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