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eptheca

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Everything posted by eptheca

  1. I have two MS-20 clone filters, that I want to control with MIDI, and if I understand it correctly, I can do this with MIDIbox CV Each filter has 2 inputs for CV control and 1 input for Keytracking (pitch). They are made by resistor here on the forum. They are powered by +/-15V through a LM317LZ/LM337LZ circuit on each filter PCB, from a 15V AC power supply (500mA) I have an MB AOUT module, and plan to power the TL074's with +/- 15V Could I tap this directly from the filter power circuit? The LM317LZ only provides 100mA Or should I make a separate +/-15V circuit to power the AOUT Op-Amps Another thing is the output voltage of the AOUT module The schematics suggests R_x=10K, R_y=2,2K, R_p=500 Will this work for my purpose? Or do I need to change the values of these parts? Shuriken, I think you bought the same MS-20 clones from resistor, do you have any suggestions? I also would like to have MIDI control of the LP/BP/HP switch Any suggestions on how to do this? Now it's an ON-ON-ON 2P3T toggle switch And then for last, CV V1 or V2? Any big advantage in the new V2 for this use? I guess I should go 32 at some point, and those OLED scopes look so sexy :) Really appreciate some tips on this idea, I haven't found much specific info Cheers, Halvor
  2. Thank you Sauraen, That is a is a great help. I'll replace IC3 & 5 with MCP6004's and go for the last option, and leave out the second buffering. So can I use the same values for the R2&3 and C7-22? On the sammichFM the analog audio circuit, including the YAC512's, is powered by a separate 5V source, what is the benefits of that?
  3. I wan't to build a MBFM, and have got hold of the chips. I wonder if it is possible to modify the OPL3 module PCB from SmashTV to use only +5V op-amps like the sammichFM. I would like to avoid the whole 5V & +/- 12V power supply. Sauraen, what did you end up doing?
  4. Yes, definitely running in 8 bit mode with custom LCD driver I did the same modification to my other MB SID as well The only thing that puzzled me was that after uploading the Change ID file, it was only displaying "Rebooting MIOS" forever. I realize that I'm just talking to myself here, but maybe it could help someone in the future :)
  5. OK, I think it's working in 8 bit mode now I used the Change ID app edited the main.asm file with #define MIOS_LCD_TYPE 7 compiled uploaded the hex with MIOS Studio got the "Rebooting MIOS" message on the LCD uploaded the SID hex The LCD works, and when I disconnect the wires that go to RE1 and RE2, lots of jibberish I take that to mean that it's running in 8 bit mode Just have to put it all together and hope it has solved the "freeze" problem
  6. I have 2 MB-SID with 4x20 LCD's with ST7066 driver chip Sometimes the LCD "freeze" and/or display strange combination of characters like this: Initially the ST7066 driver chip should be compatible with HD44780, but after reading this http://www.ucapps.de/midibox_sid_manual_ki.html I decided to try out the 8 bit mode I have rewired the LCD according to the text, and tried different ways to get the application to use this mode. -Change ID app, #define MIOS_LCD_TYPE 7 (custom LCD driver) displays: "Rebooting MIOS" forever, restart no characters displayed -I could not find a DEFAULT_USE_CUSTOM_LCD_DRIVER switch in the setup_*.asm file, but inserted #define DEFAULT_USE_CUSTOM_LCD_DRIVER 1 into the file, but it still uses 4 bit mode Any suggestions? Cheers
  7. OK, now I get it. Thanks TK :)
  8. I am using one of the Drum Kits I trigger the sounds with Midi from Ableton Live When I play, and sequence, the different sounds go to the two different channels L&R so I can have different effects on Kick and hi-hat But when I play the sequence, the sounds have "jumped" to another channel, either both on the same channel, or on opposite Is it something I'm doing wrong? Can I controll this. I have RTFM, but I can't find it anywhere
  9. Hi Schrabikus I have tried to download from NEKAKA, but even after registering I can't. any tricks? Sorted :)
  10. thank you, that was quick service :)
  11. Can anyone help me with the build guide and pdf's of the boards? The links on the wiki/Wilbas site are dead Cheers
  12. Probably a long shot, but if anyone have a spare sammichFM base PCB lying around, I would like to buy it.
  13. I have now connected all 3 GM5's to a generic USB hub (a Belkin 7 port Bus powered) 1 - uninstalled the Midibox GM5 1.0.10 driver 2 - connected the GM5's one at a time so I can see them in Device Manager (Ploytec....) 3 - installed the driver They are listed in Mios Studio/Bome's Send SX/Ableton Live as: GM5 Port 1-5 2 - GM5 Port 1-5 3 - GM5 Port 1-5 I think what caused the strange behavior earlier was that I installed the driver first, then updated the driver for each device. Installing the driver with all 3 connected worked better. (W7 64)
  14. I have tried some different things now, but can't get it to work I have moved all 4 pins to PORTB SCLK on 3 SDA on 2 DC on 1 CS on 0 and added these lines in app_lcd.inc ;; Clock/data/DC USER_LCD_LAT_SCLK EQU LATB ; Pin D.7 USER_LCD_PIN_SCLK EQU 3 USER_LCD_LAT_SDA EQU LATB ; Pin D.6 USER_LCD_PIN_SDA EQU 2 USER_LCD_LAT_DC EQU LATB ; Pin D.5 USER_LCD_PIN_DC EQU 1 USER_LCD_TRI_PORT EQU TRISB ; Port Direction ;; Chip Select Lines 0-7 USER_LCD_LAT_CS EQU LATB ; Pin B.7 .. B.0 USER_LCD_PIN_D0 EQU 0 USER_LCD_ShiftByte clrf USER_LCD_TRIS_PORT ;;; the modification(just clear TRISB for Output direction port) any suggestions?
  15. OK. Thanks Thorsten
  16. OK, Is it enough to change this part of app_lcd.inc ? ;; Clock/data/DC USER_LCD_LAT_SCLK EQU LATD ; Pin D.7 USER_LCD_PIN_SCLK EQU 7 USER_LCD_LAT_SDA EQU LATD ; Pin D.6 USER_LCD_PIN_SDA EQU 6 USER_LCD_LAT_DC EQU LATD ; Pin D.5 USER_LCD_PIN_DC EQU 5 ;; Chip Select Lines 0-7 USER_LCD_LAT_CS EQU LATB ; Pin B.7 .. B.0 USER_LCD_PIN_D0 EQU 7 USER_LCD_PIN_D1 EQU 6 I use a PIC18F4685, and this test app http://ucapps.de/mios/lcd7_dog_g_v1a.zip I have tried different combinations of the ports and pins, but can't get it to work The pins I have free in my other application is A 0-3 and B 0-3
  17. I looked in the papers from EA, and the DOGM pixels are 0,42x0,36 mm, DOGL 0,50x0,46 mm I made some custom icons, and a square icon that's 24 pixels high, needs to be 28 pixels wide to look square Thanks for the driver Phil, these displays are great :) I am no programmer, but is it possible to change the pins it uses? I have an application that uses PORTB pins 5,6,7, can I move them to PORTD pins in the driver? I will only use one display
  18. I use the EA DOGM 128-6, it's a little smaller than the DOGL do I need to change anything? It looks to me as the icons and characters are a bit "squashed"
  19. Thank you :)
  20. Can anyone help me with a wiring diagram for the DOG GLCD for MIOS 8 Core I can only find one for the CLCD's If I understand it correctly I need 9 caps and a resistor to reduce the 5V to about 3V Does the GLCD also need a 4.7K Pull-Down? and I use this driver? http://svnmios.midib.../app_lcd/dog_g/ thanks in advance
  21. eptheca

    DOG LCDs

    Hi guys, I see this tread is a bit old, but I'll try it here first Can anyone help me with a wiring diagram for the DOG GLCD for MIOS 8 Core I can only find one for the CLCD's If I understand it correctly I need 9 caps and a resistor to reduce the 5V to about 3V Does the GLCD also need a 4.7K Pull-Down? and I use this driver? http://svnmios.midibox.org/listing.php?repname=svn.mios&path=%2Ftrunk%2Fmodules%2Fapp_lcd%2Fdog_g%2F thanks in advance
  22. Build it! I can help you. I'm in Oslo. No fee.
  23. The Wiki page looks great. congratulation on the Programmer status
  24. I finished mine last night, and will spend today playing around with the Max/MSP manager.
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