#garfield Logs
Jan 19 2020
#garfield Calendar
12:01 AM Tom_L: ok that's better.
12:46 AM Tom_L: ok i think i figured out which are the leds
12:46 AM Tom_L: but i'd like to verify it before i try running it...
12:46 AM Tom_L: U8_41..U855 odd numbers?
12:47 AM Tom_L: U8_41..U8_55 odd numbers?
12:47 AM Tom_L: i got the buttons ok
12:47 AM Tom_L: i changed those to LVCMOS33 in the pin file too...
12:54 AM rue_mohr: drat
12:54 AM rue_mohr: I was trying to recover an old drive i put in the feezer cause the magnets were screing up and it doens't want to run
12:55 AM Tom_L: i'm slowly moving things to ssd
02:26 AM rue_shop1: yea, after 2 ssds dieing on me after a month of use, I'm steering clear
02:27 AM rue_shop1: I can get 6 years out of a mechanical drive easy
02:31 AM rue_bed: drat
02:31 AM rue_bed: so
02:31 AM rue_bed: that old drive, is losing its platter magnetics
02:31 AM rue_bed: I got 1800 files off it after I took it out of the freezer
02:31 AM rue_bed: its operating margin was brief
07:28 AM Tom_L: all the files still good?
10:58 AM Tom_L: ok the led dimmer part works but i need the led pins
10:58 AM Tom_L: you gotta get good ssd's
10:59 AM Tom_L: i've had no issues with them
01:39 PM Tom_L: 4.4 quake few min ago
02:03 PM Tom_L: rue_bed, wake up!
02:08 PM rue_bed: can a person feel 4.4?
02:08 PM rue_bed: I wonder if it ll ripple up the coast
02:11 PM Tom_L: we felt it and it was ~50 mi away
02:11 PM rue_bed: hmm
02:12 PM rue_bed: where was it centered?
02:12 PM rue_bed: LA?
02:12 PM Tom_L: i think we feel them more because of the hard packed ground
02:12 PM rue_bed: where is 50 miles from ya
02:12 PM Tom_L: it was ~50 mi from me
02:12 PM Tom_L: so definitely not LA
02:12 PM rue_bed: k
02:12 PM Tom_L: closer to South Hutchinson ks
02:12 PM rue_bed: in ks, ok
02:12 PM rue_bed: just kinda woke up
02:12 PM Tom_L: South Hutchinson ks
02:13 PM Tom_L: find your pinout for the fsmlut for me would ya?
02:13 PM rue_bed: I woke up with a voice in my head screaming, WHY WONT YOU GET UP
02:13 PM Tom_L: you ignored it
02:13 PM rue_bed: its in the github repo
02:13 PM rue_bed: just a sec
02:13 PM Tom_L: you use odd names though
02:14 PM Tom_L: i need to know which ones are LEDs
02:14 PM Tom_L: those would be on your header anyway because of the bar led
02:14 PM rue_bed: I named it based on the connectors of my board
02:14 PM Tom_L: the dimmer one works but is probably on the wrong pin
02:15 PM rue_bed: https://github.com/ruenahcmohr
02:15 PM rue_bed: hold up
02:15 PM rue_bed: https://github.com/ruenahcmohr/spartin6-fpga
02:16 PM rue_bed: huh
02:16 PM rue_bed: where is the schematic
02:16 PM rue_bed: which code ?
02:16 PM Tom_L: which state machine code?
02:16 PM rue_bed: 1?
02:17 PM rue_bed: https://github.com/ruenahcmohr/spartin6-fpga/blob/master/StateMachine1/first.ucf
02:17 PM Tom_L: well, the pins would probably be the same on both ehh?
02:17 PM rue_bed: I have two connecotrs, U7 and U8
02:17 PM Tom_L: i know, i was looking at your schematic
02:17 PM Tom_L: but i still don't know which ones are leds
02:18 PM rue_bed: oh, k
02:18 PM Tom_L: on that bar led
02:18 PM rue_bed: I...
02:18 PM Tom_L: it only has 8 right?
02:18 PM Tom_L: i just need those 8
02:18 PM rue_bed: yes, but I broke out 10 pins
02:18 PM Tom_L: i think 57 59 are unused but i'm not sure
02:19 PM rue_bed: 41 and 43 are the unused ones
02:20 PM Tom_L: ok
02:20 PM Tom_L: which would be the 'ones' place?
02:20 PM Tom_L: 59 or 45?
02:20 PM rue_bed: well I'm learning what to document now aren't I?
02:21 PM rue_bed: wait, it doesn't matter
02:21 PM rue_bed: its not directional
02:21 PM Tom_L: does to me
02:21 PM rue_bed: in mine its just symmetric
02:22 PM rue_bed: the fsm just bounces an led back and forth
02:22 PM rue_bed: oh, but
02:22 PM rue_bed: ok, hold on
02:23 PM rue_bed: FSMLUT({U8_59, U8_57, U8_55, U8_53}, LUTLATCHN, bluebtn, LUTLATCHO);
02:23 PM rue_bed: the lsb is on the right
02:23 PM rue_bed: so my 53
02:24 PM Tom_L: what are LUTLATCN LUTLATCHO?
02:24 PM Tom_L: 53 is the first one?
02:24 PM rue_bed: its the D latch that feeds the next state back into the lut
02:24 PM Tom_L: what are 55 57 59 then?
02:25 PM rue_bed: I'm composing the outputs from 4 bits
02:25 PM rue_bed: 59,57,55,53
02:25 PM rue_bed: w/53 being the lsb
02:25 PM Tom_L: so only 4 leds are used in the chaser
02:25 PM rue_bed: you can compose a multibit number from whatever you want with { }
02:26 PM rue_bed: yes
02:26 PM rue_bed: you can upgrade it
02:26 PM Tom_L: no i can't
02:26 PM Tom_L: not yet anyway
02:26 PM rue_bed: I can help
02:26 PM Tom_L: lemme get this goin then we can
02:26 PM rue_bed: see if you can find your leds and test 'em
02:27 PM rue_bed: I need a show and breakfast
02:27 PM Tom_L: i'm gonna use the one from 'statemachine'
02:27 PM Tom_L: not sm1
02:27 PM rue_bed: ...and then lunch...
02:27 PM rue_bed: statemachine is more complex
02:27 PM Tom_L: yeah
02:27 PM rue_bed: heh
02:27 PM Tom_L: same pins though right?
02:27 PM rue_bed: yes, same 8 pins
02:27 PM Tom_L: what about the buttons? are you only using bluebutton?
02:28 PM rue_bed: yes
02:28 PM rue_bed: I couldn't figure out what to make another button do
02:30 PM Tom_L: but you have 57 59 commented out
02:30 PM Tom_L: how can you be using them?
02:31 PM rue_bed: FSMLUT({U8_59, U8_57, U8_55, U8_53}, LUTLATCHN, bluebtn, LUTLATCHO);
02:31 PM rue_bed: their set in that
02:31 PM Tom_L: oh, not in that version
02:31 PM rue_bed: I have a bunch of commented junk at the bottom
02:32 PM Tom_L: so what are 41 43 45 47 51 doing?
02:32 PM rue_bed: 45 is the pwm, cause I just couldn't comment it out
02:32 PM Tom_L: those are with blink
02:32 PM rue_bed: yea, it carried along
02:33 PM rue_bed: count is the 6 bit pwm value
02:33 PM rue_bed: the rest of the pins are just set to 0 to make it shut up about unconnected stuff
02:33 PM Tom_L: :)
02:34 PM Tom_L: so i'll map 53..59 to leds
02:34 PM Tom_L: odd #
02:34 PM rue_bed: yes
02:34 PM rue_bed: and maybe comment out the pin 45 thing
02:34 PM Tom_L: i like that all the pin # are labelled on the silk on this
02:35 PM rue_bed: yea
02:35 PM rue_bed: you see in the ucf file I was able to combine the stuff you had?
02:35 PM Tom_L: what do you mean?
02:35 PM Tom_L: oh with the |
02:35 PM rue_bed: y
02:36 PM Tom_L: you can do it either way
02:43 PM Tom_L: well it compiled..
02:44 PM Tom_L: just one led lights
02:44 PM Tom_L: doesn't scan
02:44 PM Tom_L: the first led
02:44 PM Tom_L: pwm works
02:45 PM Tom_L: maybe the button is inverted?
03:02 PM Tom_L: my buttons are inverted from yours
03:02 PM Tom_L: yours default to +3.3 mine default to GND
03:05 PM Tom_L: that's what it was
03:07 PM Tom_L: mine just goes on button release now :)
03:07 PM Tom_L: until i can invert the code
03:08 PM Tom_L: removed "PULLUP" from the pin file too
04:39 PM rue_shop1: right, that version you push the button to trigger it
04:40 PM rue_shop1: thats why I said use the other version, the machine1
04:40 PM Tom_L: oh
04:40 PM rue_shop1: :)
04:40 PM Tom_L: but then i wouldn't have known they were inverted!
04:40 PM rue_shop1: so, your buttons are normally low?
04:40 PM Tom_L: umm, i think so
04:40 PM Tom_L: opposite yours
04:48 PM Tom_L: i can add the other fsm code to it right?
04:50 PM Tom_L: i see the difference
06:11 PM Tom_L: fixed a few of your warnings
06:12 PM Tom_L: changed input[1:0] I; to input I; it's only one bit wide
06:12 PM Tom_L: gave FSMLUT an instance name
06:23 PM rue_mohr: warnings?
06:23 PM rue_mohr: ah yes
06:23 PM Tom_L: can't seem to fix one yet
06:23 PM rue_mohr: I was annoyed about the instance name, didn't want to give it one
06:23 PM rue_mohr: which one
06:24 PM Tom_itx: WARNING:Xst:1710 - FF/Latch <LUTLATCHO_1> (without init value) has a constant value of 0 in block <blink>.
06:24 PM rue_mohr: sure easy
06:24 PM Tom_L: i assigned it a value of 0 and still get the warning
06:25 PM rue_mohr: did you do it in a 'once' section?
06:26 PM Tom_L: idk
06:26 PM Tom_itx: i took it back out
06:26 PM rue_mohr: initial
06:26 PM rue_mohr: like
06:26 PM rue_mohr: initial begin
06:26 PM rue_mohr: count <= 6'd3;
06:26 PM rue_mohr: dir <= 1;
06:26 PM rue_mohr: end
06:26 PM rue_mohr: https://github.com/ruenahcmohr/spartin6-fpga/blob/master/bounceCount/blink.v
06:28 PM rue_mohr: I still cant think up a datasource for the lcd
06:28 PM rue_mohr: maybe I should work on getting the ram going
06:29 PM Tom_L: i saw some more stuff on dll
06:29 PM Tom_L: looks complex
06:31 PM rue_mohr: depends if its that dual ported junk
06:34 PM Tom_L: still warns
06:35 PM Tom_L: oh also clkdown 22 was never used so i trimmed that to 21
06:35 PM rue_mohr: yea I was leaving things for expansion
06:35 PM rue_mohr: that code was sitting right in the middle of dynamic
06:36 PM Tom_L: i botched something though
06:36 PM Tom_L: it's not working now :)
06:36 PM rue_mohr: :)
06:38 PM rue_mohr: yea, wow, that lcd is so complex to try to arrange the data for
06:39 PM rue_mohr: and I'm still into a microcontroller to load the data
06:42 PM Tom_L: the one you had stripes displaying?
06:43 PM rue_mohr: yup
06:43 PM rue_mohr: I cant even decide on an interface
06:48 PM rue_mohr: hah, as I think about it more and more I want a whole rendering engine
06:48 PM rue_mohr: hahaha
06:52 PM Tom_L: do both the LUTLATCH need to be 2 bit?
06:54 PM rue_mohr: you see how that all works?
06:54 PM Tom_L: oh hell no
06:58 PM Tom_L: you could map bluebtn and redbtn to that input[1:0]
06:58 PM rue_mohr: http://ruemohr.org/~ircjunk/tempimage/p1140874.jpg
06:58 PM rue_mohr: think of the LUT as a ROM
06:58 PM rue_mohr: its got address inputs, and data outputs
06:58 PM rue_mohr: some of the data outputs are looped back via a D latch
06:59 PM Tom_L: i understand what it's doing i just haven't followed it all the way thru
06:59 PM rue_mohr: so that code your working with its two things
06:59 PM rue_mohr: that FSM in verilog, and a clock divider
06:59 PM rue_mohr: fpga is nice, cause your not locked to any number of bits in or out or feedback or anything
07:00 PM Tom_L: :)
07:00 PM Tom_L: and you can do more than one thing at once
07:00 PM rue_mohr: I hit my head on the 8 bit limit trying to do anything with these
07:00 PM Tom_L: on the 68332 you could set the spi bit width
07:03 PM Tom_L: so how do you add more leds to the mix?
07:09 PM rue_mohr: you increase the size of out
07:10 PM rue_mohr: and the size of the state machine to fit the extra states
07:10 PM rue_mohr: its not optimal for bouncing leds, I was finding a purpose for the basic state machine
07:10 PM rue_mohr: anything like a counter
07:11 PM rue_mohr: anything like a counter is better done with a counter
07:15 PM Tom_L: this chip has alot more power than the cpld board
07:31 PM rue_mohr: :)
07:31 PM Tom_L: one sec..
07:39 PM Tom_itx: https://www.youtube.com/watch?v=fOP3xbCHviU
08:42 PM rue_mohr: hahahnice
08:42 PM Tom_L: 2 instances
08:42 PM Tom_L: was pretty easy
08:43 PM rue_mohr: should be!
08:44 PM Tom_L: gonna try to program the flash now
08:46 PM rue_mohr: does you software do it "directly" or do you have to load the loader?
08:48 PM Tom_L: no i don't need the loader
08:48 PM Tom_L: impact asks where you want to put it
08:52 PM rue_mohr: it probably does it for you and just hides it
08:52 PM Tom_L: probably
09:00 PM Tom_L: doesn't seem to be programming it
09:00 PM Tom_L: but i'm not sure because something changed from the original file but not what i was sending it
09:00 PM Tom_L: i think it creates a .mcs file for the flash and that may be what it's sending
09:01 PM Tom_L: trying to figure out how to change that
09:07 PM rue_mohr: :) cant help ya!
09:07 PM Tom_L: creating a new project with it so i'll see if i can assign it there
09:07 PM rue_mohr: well, we could use xc3sprog maybe
09:08 PM Tom_L: oh
09:08 PM rue_mohr: its a pretty limited program
09:08 PM Tom_L: i didn't go far enough down in the tree
09:08 PM rue_mohr: k
09:08 PM rue_mohr: whats the answer?
09:08 PM Tom_L: Generate Target PROM/ace file
09:08 PM rue_mohr: k
09:08 PM Tom_L: under Generate Programming File
09:08 PM Tom_L: i usually stop there
09:33 PM rue_shop1: ok, for the cnc machine I'm going to need drivers for vacuum cleaner mtoors
09:33 PM rue_shop1: they can be pwm, but need a current limit
09:34 PM rue_shop1: of about 20A
09:35 PM rue_shop1: 24V it says
09:36 PM rue_shop1: ah no, 48V
09:36 PM rue_shop1: but I'm targeting a 25V drive
09:36 PM rue_shop1: 1.2m/s
09:36 PM Tom_L: mmm, not sure how to go about this
09:36 PM rue_shop1: flashing the eeprom?
09:36 PM Tom_L: yeah
09:36 PM rue_shop1: mine does it with the .bit file
09:38 PM Tom_L: it did change it but i think it was from a file they generated
09:39 PM Tom_L: but i'm trying to figure out how to configure the target device
09:39 PM Tom_L: for future project files
09:39 PM rue_shop1: k
09:40 PM Tom_L: ok 2nd try
09:41 PM Tom_L: worked that time
09:42 PM Tom_L: i think it was just reading the old flash file
09:43 PM Tom_L: i need to go thru the steps a couple more times
09:51 PM Tom_L: ok i think i got it now
09:55 PM rue_shop2: k
09:55 PM rue_shop2: was that a usb programmer?
09:55 PM Tom_L: yes
09:56 PM Tom_L: i figured it out
09:56 PM Tom_L: i just didn't go far enough down the tree initially
09:56 PM Tom_L: and you gotta specify a device size and it generates a .mcs file for it instead of a .bit file
09:56 PM Tom_L: it still creates the .bit file
09:57 PM Tom_L: then you can pick which device to program
09:58 PM Tom_L: i was confused at first because it showed impact screens i'd not seen before
09:59 PM Tom_L: you basically just describe the device then when you actually program it, you select a part number
09:59 PM Tom_L: step 1: spi flash 32M
10:00 PM Tom_L: step 2: Flash chip W25Q32V
10:06 PM rue_shop2: oh whats mins
10:06 PM Tom_L: so during testing, it's alot quicker to just program the fpga
10:06 PM rue_shop2: 25P80
10:07 PM Tom_L: i've verified it by chaning both
10:07 PM rue_shop2: yea, mines 8mbit
10:08 PM Tom_L: the flash?
10:08 PM rue_shop2: how big is your file
10:08 PM rue_shop2: yea
10:08 PM Tom_L: the .mcs is smaller
10:08 PM rue_shop2: I only have a bit file,
10:08 PM Tom_L: 915k
10:08 PM rue_shop2: hmm
10:08 PM rue_shop2: call it 1M
10:08 PM rue_shop2: oh 8mbit
10:08 PM Tom_L: yeah i suppose
10:09 PM rue_shop2: huh
10:09 PM rue_shop2: so I can fit one program
10:09 PM rue_shop2: you can fit 4
10:09 PM Tom_L: surprised it's that small
10:09 PM rue_shop2: meh
10:09 PM Tom_L: yeah but these are small programs
10:09 PM rue_shop2: but that file size will be the same
10:09 PM Tom_L: i doubt either of us outgrow them
10:10 PM rue_shop2: yea
10:10 PM Tom_L: no i don't think so
10:10 PM rue_shop2: I had another project idea
10:10 PM rue_shop2: floppy drive emulator
10:10 PM Tom_L: lemme make another and we'll see
10:11 PM Tom_L: meh, i can't
10:11 PM Tom_L: i started picking things up
10:11 PM Tom_L: and it want's to connect to the board
10:16 PM Tom_L: yeah, it's the same size. 915k
10:23 PM Tom_itx: https://opencores.org/projects/floppyif
10:34 PM rue_shop2: https://www.aliexpress.com/item/32854130373.html
10:34 PM rue_shop2: https://www.aliexpress.com/item/32740326927.html
10:34 PM rue_shop2: https://www.aliexpress.com/item/1984668557.html
10:35 PM rue_shop2: Tom_L, is that to use or simulate a floppy drive?
10:36 PM rue_shop2: no, your the wrong way
10:36 PM rue_shop2: I want the fpga to be the floppy drive
10:37 PM rue_shop2: good news
10:37 PM rue_shop2: I cant just buy the H bridges for my cnc
10:37 PM rue_shop2: https://www.aliexpress.com/item/4000096081979.html <-- this style is the closest I can find
10:38 PM rue_shop2: and I want a 20A normal peak
10:38 PM rue_shop2: but I also want current limiting
10:39 PM Tom_L: i'll look around tomorrow for another
10:40 PM rue_shop2: huh
10:40 PM rue_shop2: cant see why
10:40 PM rue_shop2: those are made with 110A mosfets
10:41 PM rue_shop2: their only throwing 3.2w/package
10:41 PM rue_shop2: maybe its cause they didn't heatsink them
10:41 PM rue_shop2: they can throw 200w
10:41 PM Tom_L: i never could figure out why they packaged 1000A mosfets in a 220 case :)
10:42 PM rue_shop2: hmmmm
10:42 PM rue_shop2: or its trace size
10:42 PM rue_shop2: for $15 should I get one?
10:42 PM rue_shop2: I might be able to use it for the big cnc
10:42 PM Tom_L: a driver or chip?
10:42 PM rue_shop2: it might beat building my own
10:42 PM rue_shop2: its a pcb
10:42 PM Tom_L: yeah
10:43 PM Tom_L: leadshine make decent ones for not that much
10:43 PM rue_shop2: 2 channel, "10A" "36V"
10:43 PM rue_shop2: shipped?
10:43 PM rue_shop2: https://www.aliexpress.com/item/4000096081979.html
10:43 PM rue_shop2: I honestly think its only missing the heatsinks
10:43 PM Tom_L: yeah you want heatsinks
10:43 PM rue_shop2: I have a crate of them
10:43 PM Tom_L: even just a bar of aluminum...
10:44 PM rue_shop2: *think*
10:44 PM rue_shop2: so I have 3 axies, 1 with 2 motors
10:44 PM rue_shop2: if I get two of those drivers, thats the 4 channels I need
10:45 PM rue_shop2: I dont think I'v actually put *any* money into that cnc yet
10:45 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/psu/heatsink_bulk.jpg
10:45 PM rue_shop2: wait, yes, I bought some bed wood for it
10:45 PM Tom_L: come get some of that...
10:45 PM rue_shop2: no really, I'm good
10:45 PM rue_shop2: I have a verry large wooden box of them
10:45 PM rue_shop2: and a smaller cardboard box
10:45 PM Tom_L: heh
10:46 PM rue_shop2: https://www.aliexpress.com/item/4000096081979.html <-- Rue buy 3
10:46 PM rue_shop2: (in feb, cuase , chineese newyear)
10:47 PM Tom_L: doesn't matter, you're gonna wait anyway
10:48 PM Tom_L: by then you'll forget
10:48 PM rue_shop2: na, I'm gonna set up a shopping cart
10:48 PM Tom_L: it may ship before then anyway
10:50 PM rue_shop2: https://www.aliexpress.com/item/32821835744.html
10:50 PM rue_shop2: I might have to break up the sources depending on shipping
10:51 PM Tom_L: pepsi made a floppy controller on the 128 once
10:51 PM rue_shop2: yea, their really slow
10:51 PM rue_shop2: https://www.aliexpress.com/item/32919536927.html <-- woulndn't mind somme dat either
10:55 PM rue_shop2: https://www.aliexpress.com/item/32905070447.html <--- oooooo
10:55 PM rue_shop2: I need a larger play budget
10:55 PM Tom_itx: http://www.craigsarea.com/vhdl_disk.html
10:55 PM rue_shop2: no, you need your projects to pay for themselfs
10:56 PM Tom_L: i try to do that
10:56 PM Tom_L: been successful on several
10:56 PM rue_shop2: sure, but I dont want to have to fight with tempremental floppy disks
10:57 PM rue_shop2: I want the fpga to pretend its a floppy drive when hooked into a computer
10:57 PM Tom_L: so you want an emulator
10:57 PM rue_shop2: yep
10:57 PM Tom_L: you can buy those from china for $.50 a dozen
10:57 PM rue_shop2: no, their $50
10:58 PM rue_shop2: ide emulators are 0.50
10:59 PM Tom_itx: http://hxc2001.free.fr/floppy_drive_emulator/index.html
11:01 PM rue_shop2: thats a lot of designs
11:01 PM Tom_itx: https://github.com/jfdelnero/CPLD_USBHxCFloppyEmulator
11:02 PM rue_shop2: maybe I can start selling them for $50ea
11:02 PM rue_shop2: haha, I have nowhere to bookmark that
11:03 PM rue_shop2: !bookmark floppy emulator cpld fpga
11:04 PM Tom_L: you'd probably have to convert the pin file and a few other things
11:04 PM rue_shop2: but $11 fpga boards and sell them set up as floppy emulators?
11:04 PM rue_shop2: sure, the fpga should be able to take it, I think
11:04 PM Tom_L: no doubt
11:04 PM rue_shop2: spend some time bending clock rates
11:04 PM Tom_L: just fix up the files a bit
11:05 PM rue_shop2: https://www.aliexpress.com/item/32896741176.html
11:05 PM Tom_L: what irc client do you use?
11:05 PM rue_shop2: hahah I should drop the links into robotics, its quieter
11:05 PM rue_shop2: hexchat
11:05 PM Tom_L: i switched over to it from mirc
11:06 PM Tom_L: i think that was my hdd problem
11:06 PM rue_shop2: you mentioned
11:06 PM Tom_L: i always had it installed just didn't use it as the primary
11:07 PM Tom_L: bak to work tomorrow.
11:07 PM Tom_L: gnite
11:08 PM rue_shop2: https://www.aliexpress.com/item/4000384327136.html <-- 1 channel version of what I want for 4x the price
11:08 PM rue_shop2: yea, I'm falling asleep
11:09 PM rue_shop2: I sat down to design a motor driver using the parts I alreayd have, and ended up on ali shopping motor drivers
11:11 PM rue_shop2: found one with a heatsink rated to 20A
11:11 PM rue_shop2: + an extra $29
11:13 PM rue_shop2: heh, $84 for one a bit larger than what I want
11:14 PM Tom_L: little more than that and you can get a gecko
11:14 PM rue_shop2: yea, thats the price range I'm avoiding
11:14 PM Tom_L: i think mesa makes one
11:16 PM Tom_L: how many watts?
11:16 PM Tom_L: not big enough...
11:16 PM rue_shop2: 30V supply, 20A
11:16 PM rue_shop2: 20A peak
11:17 PM rue_shop2: dunno if those motors would take much more than 12A continious
11:17 PM Tom_L: yeah i don't think he has anything that big
11:17 PM rue_shop2: if I'm willing to add 4V to my supply I could go IGBT
11:18 PM rue_shop2: 100A 1600V for $10
11:18 PM Tom_L: 2200w 400v 3phase torque mode amp
11:19 PM rue_shop2: actually I think that was a messed up listing, I think that was a diode
11:25 PM rue_shop2: omg
11:26 PM rue_shop2: 15A, 600V, 3 phase with drivers etc etc etc $2.20
11:26 PM rue_shop2: https://www.aliexpress.com/item/32956578893.html
11:28 PM rue_shop2: thats worth it just to play with
11:54 PM rue_shop2: https://www.aliexpress.com/item/32834345389.html