TL

If you're in germany, http://www.braintechnology.de has some... Best regards Thomas

@el-bee: Actually stryd_one is working on the sequencer firmware... :) I just made the memory extension for the PIC because stryd_one needs more memory for the x0x firmware.

you could use a neutrik powercon on the top... http://www.neutrik.com/content/Products/products_group.asp?level2id=204_54471

Wollte gerade das selbe wie TK schreiben, aber er war schneller ;)

In my SID I've 2x 8580 and 2x 6581. All 4 of them get warm, so I've put a heat sink on them... ;)

http://69.56.171.55/~midibox/forum/index.php?topic=3375.0

Updated app: Download

thanks for your offer, but I've done most of TKs suggestions already yesterday. ;D Yes you're right in the beginning of this driver/app I've spend really a *lot* of time learning by doing ;) but in the meantime it's much better ;D It's really fun to learn some PIC asm 8) ...

Thanks for the hints Thorsten. :) This project was my first real contact with PIC asm and I know my code is far from perfect... ::)

Update: My driver sram.inc for the SRAM is ready. :) It implements 2 access types: - byte read/write - "page access" to the SRAM, this reads/writes 256bytes at once Also included is a small MIOS test application. Download

Looks really great!!! ;D

Aus dem Handbuch zu MPASM: 173 source file path exceeds 62 characters einfach in ein Verzeichnis mit kürzerem Namen verschieben, dann gehts ;) z.b. direkt auf d:\midibox_cv\

check PM ;)

Also ich heute nachmittag mal kurz probiert den MPASM unter wine zum laufen zu bekommen. Es geht ;D Hab allerdings auch nur den reinen Compiler(MPASMWIN 4.0) aus der aktuellen MPLAB IDE genommen ohne die IDE. Allerdings muss die IDE unter Windows installiert werden (geht nicht unter wine, da der installer nicht will), dann kann man sich das komplette Verzeichnis ( c:\Programme\Microchip\MPASM Suite ) in sein virtuelles c: laufwerk unter wine kopieren und aus dem Verzeichnis in dem sich MPASMWIN.EXE befindet mit "wine MPASMWIN.EXE" starten...

Da könnte ich Dir eventuell helfen... ;)

http://musicthing.blogspot.com/2005/03/sashas-new-ableton-controller.html http://www.innerphaseny.com/view_50.html http://www.365mag.com/index.php?pg=full&idnews=2337 http://proaudio.zicos.com/news.php/n/108623/ http://www.createdigitalmusic.com/index.php?option=com_content&task=view&id=316&Itemid=44 These are the first google hits...

@stryd_one: this is nearly the same schematic, only with serial interface. @all everything works, the only untested thing is the 512k x 8 SRAM, but this should work to 99% ;D Currently I'm doing some enhancements to the MIOS driver, so it's not available yet. @SmashTV Can I send you the eagle schematic file? ;) Schematic Some pictures

Current status: Yesterday I soldered the battery backup circuit and yes the SRAM kept the data since yesterday with only the battery... 8) Before releasing the schematics I want to do some more tests. For example I'm currenrly using a SRAM with 55ns access time, I want to try it with the more common type with 70ns. (this is only a software driver thing) Also I've no 512k x 8 SRAM at the moment, I think this sould be tested, too. ('I'm using 128k x 8 currently)

Yes, did it quickly on breadboard. Two latches and the remaining address and control pins directly to J5.... I will post wiring diagram,pictues and my test program tomorrow the next days. ;)

Hehe, my prototype is up and working. ;D Currently without battery backup but I will test this momorrow or monday...

CPFSGT WARNING_LEVEL; COMPARE ENCODER VALUE WITH WARNING_LEVEL goto No_Warning movlw 0x14 CALL MIOS_DOUT_PinSet1; LIGHT WARNING LED No_Warning Call MIOS_MIDI_TxBufferPut I think this works...

@SmashTV I think I will first verify the complete schematic first, so you've only do the board one time... And actually I'm not completely sure about some small things of my current design... ;) Thank you for doing the board! 8) @stryd_one Currently I'm still not sure if this is really faster than using 2 latches, since the calculation of the address lines also takes some time, especially if the address lines are scattered to different ports of the PIC. If the larger 512k x 8 SRAM would be used the address lines A8 - A18 would go to 3 different ports of the PIC. Also with the bigger SRAM J5, J7 and J10 could not used for other modules any more... Maybe I'm wrong about the the address lines calculation time. Any input about this subject is really appreciated! :) @all For chip availability and prices: 128k x 8 should be available almost everywhere: Mouser part no. 511-M68AF127BM70B6U cost $3 Reichelt part no. 628128-70 cost € 2.20 512k x 8 not available at mouser, but at reichelt: part no. 628512-70 cost € 4.25 All parts above are DIL/DIP packages, I think it's easier to solder for most of us. Since I'm from germany I don't know much about part suppliers outside germany, maybe everyone reading this could look at his favourite part supplier for SRAM 128k x 8 and 512k x 8 if it's available.

According to the datasheets it's no problem to support 128k x 8 and 512k x 8 SRAMs. I've updated my schematic already and after I verified it works I will publish it here and maybe d2k could create a pcb ;) My design uses 2 latches, the remaining address lines go directly to the PIC,a 3-to-8 multiplexer to control the latches and has a backup battery. SMD vs. DIL topic: I think DIL is much easier to solder for most DIY people...

Thank you Thosten :)

Additional note: It seems that2mbit SRAM ( 256k x 8 ) is not available in 5V, only in low voltages... 128k x 8 and 512k x 8 is available as 32-DIP, 32-SOP and 32-TSOP2 packages...