Snoozr Posted August 14, 2008 Report Share Posted August 14, 2008 Hi everyone,First let me say that getting my Sid up and kind of running (making a bit of sound anyway) has been my technical accomplishment of 2008!I'm stuck at the bankstick stage. I have 3. The first board I built has them numbered 1, 2, and 3. Only #1 works (it now has the 128 presets in it). I checked the connectivity and wiring numerous numerous times, switched chips around, etc. In frustration, I built a second board and wired up #4. #4 does not work either (again with checks for voltage, connectivity, shorts). The sid says "No Bankstick" when I try to switch in MidiOX. Specifically, it says E002|B001* Ld Chn. 11***|<No Bankstick>My soldering is passable enough that I think at least one out of #2, #3, and #4 should have worked just straight out of the box, and testing indicates they should all work. See pix below.So do I need to upload something to the Core to inform it about the banksticks? Tried a lot of poking around in the code and searches but was coming up dry.Alternatively, perhaps I misunderstood the multiple-bankstick wiring instructions but checked this many times as well. All wirings were the same for #1-#4 so can't explain why #1 works and others don't. On the bigger board, you can see that I just used vertical columns as "conduit wires" which the individual chips tapped into. This looks like the conduits on the wiring instructions (to me anyway).Also, I have noise on some patches which I understand is likely due to a bum 6581 filter. I understand the filter can be turned off somehow in the code but poking around in the code and searches again didn't give me any leads (that I could comprehend anyway).Thanks! Quote Link to comment Share on other sites More sharing options...
frailn Posted August 14, 2008 Report Share Posted August 14, 2008 Curse that strip-board. I never was able to get the OPSU working on one of those and I rebuilt it three times. Sorry, I'm not much help, but I will tell you that I'm new to building electronics to this degree and I struggled with the strip-board. I had better success with the proto boards that have each hole isolated and each hole has a metal pad. Quote Link to comment Share on other sites More sharing options...
Snoozr Posted August 14, 2008 Author Report Share Posted August 14, 2008 Thanks - yeah I wondered about that and so that's why I went to Board 2 with isolated holes. I got the stripboard from Smash (so it must be Midibox approved ;D ;D).I found in the setup_6581.asm that it seems to indicate that 3 pins are connected to +5v. So looking back at http://www.ucapps.de/mbhp_bankstick.html it seems there is some text which I could not quite read but must be +5v. Problem hopefully solved ;D ;D (at least the non-filter part). Quote Link to comment Share on other sites More sharing options...
TK. Posted August 15, 2008 Report Share Posted August 15, 2008 What is the type number of the IIC EEPROMs? If they are manufactured by ST, the CS lines (pin 1-3) won't work. AMD EEPROMS: Pin 3 won't work. Only Microchip EEPROMs (24LC512) will allow you to use all chip select lines.So - my assumption is, that you are using ST EEPROMsBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Snoozr Posted August 15, 2008 Author Report Share Posted August 15, 2008 Hi TK, Thanks for taking the time to reply. Yes, they are the Microchip Serial EEPROMs 512k so I think it is just my eyesight that is the problem here :) Quote Link to comment Share on other sites More sharing options...
Snoozr Posted August 15, 2008 Author Report Share Posted August 15, 2008 Signed, soldered, delivered. Thanks gang!Now I'm going to give my newly purchased Dremel set a spin and work on the control surface. Wish me luck ;) Quote Link to comment Share on other sites More sharing options...
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