missingsense

man I've been waiting since 2012!! last time he mailed me he mentioned lexan overlays (also for the sammichSID).. hope this will happen! they are great little boxes

No it's not updating the parameters on the LCD when I use NRPN's or CC's

My box won't respond to NRPN's at all after I make those edits. Do you think I should change some more instances of SID_PATCH_BUFFER_SHADOW?

Awesome, thanks, I'll give it a try see how it works out.

I really like the simplicity of the NRPN streams, it would be cool if there was somehow a switch to make it edit into the buffer directly. I would love to edit it with the Bitstream 3x, but I can't make SysEx work correctly. I realized it couldn't send 12 bit values with MIDI, the way it's packed. I can sort of make the filter work by neglecting the smallest nibble, but I can only make it go up to 7F, so half the filter is open.

Had to raise it to 50ms but now it's perfect, thanks!

many thanks, I'll try this out tonight

Really liking the supersaw for 303 lines By the way, I'm getting a lot of accidental double button presses on my sammichSID, it's driving me nuts.. could that be solveable in software?

lol I am an idiot. I got it working by uploading the MIDI part of MIOS.. Didn't realize there was such a thing. Everything works perfect now. yep that was the whole issue. *hides really happy though ha

yeah that's probably a better idea.. thanks for the offer, really nice of you. I'll PM you

Okay searching for "f0 00 00 7e 40 00 0e 03 32 f7" on google I found that the MIDI on the device I was using to connect it to the computer is not very good. Using a better device I can now make contact with MIOS again, it says everything is cool and I even tried re-uploading the firmware, but no dice. Still nothing. I can't download any patches I did. I don't see anything but the blocks on the LCD and the LEDs do nothing.

Alright had a busy month, but I sat down with it just now. * the LCD on the control surface lights up, I can see two rows filled with blocks. * the LEDs do nothing. * when trying to connect with MIOS I get the following: pressing 'Query' responds with: "No response from MIOS8 or MIOS32 core!". I do get 5 SysEx strings responding from the sammichSID containing: "f0 00 00 7e 40 00 0e 03 32 f7" I do get a steady pulse from the sammichSID. It contains a SysEx string with "f0 00 00 7e 40 00 01 f7". I also get similar responding SysEx strings when I'm uploading the hex file. There is some form of communication, but the core doesn't seem to respond. trying to upload the sammichSID hex gives: "WARNING: no response from core". It then proceeds to send the data anyway, responding with SysEx strings. After the process is complete it just continues with giving the steady pulse of "f0 00 00 7e 40 00 01 f7" * Minor detail I noticed. When I turn the sammichSID on or off, with the control surface attached I get a "f0 f7". When I remove the control surface I get a bunch of lines when I turn it off. "fc" and 5 or 6x "ff" on seperate lines. * I tried both the PIC chips I had burnt, both the same result. Suggestions? Should I get a new optocoupler? Try and get the PICs reburnt? I believe the soldering is all sound. I checked everything, and it worked without a hitch before I did the "optrex surgery" (soldering in those two wires), I probably should have removed all the ICs before I did that. Maaaaybe? Please help guys, I really miss using this little box..

I should have just copied the whole message. Sorry about that.. As for the backlight, it still works fine. Right after I got the PICs I still could, and had (repeatedly) uploaded the sammichSID.hex - but nothing seemed to happened. After a reboot I couldn't see anything on the LCD, it didn't make a sound, and the LED's didn't do their startup pattern. I ordered two PICs, had them both burned by someone else, and I tried them both. Same thing on both cases. Right now I can't connect to MIOS anymore. And I've also tried both PICs.. Could it be the PICs themselves? Anyway here's the text I got from Jason many moons ago. Thanks for the patience all, I will noob my way through this.. New PCB Revision 3 This batch includes revision 3 PCBs, the only differences are slightly different silkscreen (the white printing) and the J16 header, which is still technically 16-pin but you can use an 18-pin header. This allows people to (optionally) use the Optrex STEP LCD, which has the backlight pins (B-, B+) at the other end of the header, the two pins NOT in the outline. (I used the same solution in the sammichFM design). For everyone using a negative green (the default LCD) supplied by me, just put the male header in the 16 pins closest to the top of the PCB (i.e. closest to the rear panel/sockets). If you're using an Optrex STEP LCD (i.e negative blue), put the male header in the 16 pins closest to the bottom of the PCB (i.e. closest to the J8/J9 female header). If you're using an Optrex STEP LCD, you must also solder one wire on the bottom side to connect the B+ pin to the unmarked pad at the bottom, on the same side. Unlike sammichFM, there are no tracks, you need to use a wire. Sorry for the inconvenience. Optrex STEP LCDs are considered "low power" so follow the build guide instructions for "low power" LCDs (JR4=open, JBL=5V, brightness pot=max) There's only one way your LCD can align and fit (when mounted to the control surface PCB), so don't worry too much about it unless you plan to connect the LCD while it is not mounted to the control surface PCB (which you probably should never need to do).

Alright here are a bunch of shots. Last one is the header of the old display. https://dl.dropboxusercontent.com/u/3429552/2014-08-20%2012.22.25.jpg https://dl.dropboxusercontent.com/u/3429552/2014-08-20%2012.22.35.jpg https://dl.dropboxusercontent.com/u/3429552/2014-08-20%2012.23.34.jpg https://dl.dropboxusercontent.com/u/3429552/2014-08-20%2012.23.54.jpg

No, I looked up the email from way back, here's the bit about the Optrex: https://dl.dropboxusercontent.com/u/3429552/Screenshot%202014-08-19%2022.15.53.png Could the second wire I added be the cause of my problems? I'm going to remove it anyway, but it's just the grounds, right?

The header for the Optrex is different from the standard Display. They are both 16 pins, but the pins for power are at the bottom instead of at the top. And the header is shifted 1 down in comparison to the normal LCD. At least that's what I got out of it. It's really a longshot though. those pins are unconnected on the PCB otherwise. I'll give it a try, unless someone can confirm this is ok.

Okay I could get new 595 chips then. Is that a good next step? I believe all the voltages measure correct, the pins aren't bent and the sockets and solder points are all fine. Could there be something else I should check? Should I try and reburn the PICs? The guy that burnt them for me offered to do it, he told me that might be the problem. Did I mention the fact that I soldered two wires to the bottom of the board in order to give the Optrex LCD the current? Could this have been the error? I've included pics of the mod here: https://dl.dropboxusercontent.com/u/3429552/2014-08-19%2003.00.53.jpg https://dl.dropboxusercontent.com/u/3429552/2014-08-19%2003.01.34.jpg

Okay so I removed all the ICs except for the banksticks, and inserted the PIC. I switched it on and tried to measure voltages, but there was nothing. Not even 12V on the power switch itself. scratch that, this was just a bad connection from the power supply I was using; I was using a different one and the head of the plug was too big which caused intermittency. When I remove the PIC I measure the correct voltages again. Also, when I insert all the ICs except for the SID I get the correct voltages. So that's probably nothing. I tried connecting with MIOS without the LCD and SIDs but it's not working anymore..

True. That's the first thing I tried, and it didn't work; which led me to believe I fried the PIC. but the other thing is that all the LED's stopped blinking on start up as well. The screen still gets powered, I can see it lighting up. But it seems there's no control. I still have to check those voltages with the PIC installed, but should I remove all IC's and measure everything? I didn't actually remove the smaller ones before, or the memory sticks, just the big PIC and the SID's.

Alright, thanks a lot. I think it responds to MIOS studio just fine, at least it connected and I could upload and it told me everything went well. Except no reboot etc. I'll go investigate in the morning.

Okay this took a while, I had to replace my multimeter. I measured the voltages in the sockets as shown in the build guide. They all give 5V as they're supposed to, so that seems ok. Are there more points I could measure based on the base-pcb? I had a look, but I don't know what I'm looking for. I can only find the ground points, and I can recognize the 5V points because I know they are there based on the build guide.

Thanks, I'll try that.

My sammichSID has been broken for quite some time now, and I really want to get it back working. I don't have a lot of experience in tracking down what's the problem, so I thought I'd ask around. It was working fine until I decided that I wanted to use the low power Optrex STEP LCD instead of the stock high power LCD. (Jason had previously sent me one, because of some issues during the build, but I never used it). After I set everything up, made sure all the jumpers were correct, it didn't show anything on screen, but the audio was still working and I also still had the LED animation. I asked around, and it was probably the PIC that needed to be replaced. After I replaced the PIC with a fresh pre-burned one and connected it with MIOS, I uploaded the latest software, aaand nothing. No LEDs and no sound. I misplaced the previous PIC so I don't know if it's the MIOS not uploading correctly. It says it uploaded correctly. But nothing happens when I reboot. I occasionally see a really short flash of leds lighting up when I switch it on. The only thing I found out later was that I had the polarity on the power supply the wrong way around (I had it set to center negative), which apparently works fine with a high powered LCD and 8580 chips, but might be wrong when using a low powered one? Could that be a good assumption? Could that also lead to finding out what part I might have blown?

Ik zit met eenzelfde probleem. Bij het vervangen van mijn sammichSID scherm heb ik per ongeluk mijn PIC18LF4685 opgeblazen. Ik kan wel een vervanger vinden, maar ik kan hem dus niet zelf branden. Heeft iemand zin om me te helpen met branden? En is het beter als ik weer een PIC18LF4685 koop? of kan een PIC18F4685 net zo goed? Ik kan het verschil niet vinden.

Alright good to know, I would like to do this, but dunno if that is possible with a sammichSID. If I would be able to switch the port between THRU and OUT mode in software that would be a better solution for me. Is that a possibility or is it something routed in the hardware?