recompas

sure enough, it was the driver. I tried the mandolane driver and it worked a charm. It was really weird, the sysex was getting received on the computer end - it just couldn't send any out (though midi msgs for notes etc worked fine). Anyway, I'm quite happy it wasn't hardware related as I had triple checked everything. This is probably one of the most well documented and put together kits I have encountered, thanks Wilba!

I've already looked through the other posts on the forum, but no luck. I finished constructing my sammichSID last night and was trying to get the SID program uploaded. I followed all instructions, and upon trying to test the display, I had no response. I tried replacing the optocoupler twice, and no luck. Midi Out is working, and MIOS boots up. The message I get in MIOSStudio is: 00000533676095 ms | Continued SysEx: F7 03 00 00 00 00 00 I am running a Macbook Pro 2.33ghz core 2 duo w os x 10.6.2 and a m-audio usb uno as my midi interface. The interface appears to work, as I can use the keyboard in MIOSStudio to play one of my synths via the uno. Is there a good way to narrow down where the problem may be? I was going to try a loop of the midi in/out on the sammichSID board by moving the midi jumpers and just connecting the in/out (tx/rx) lines to see if it echos back on MIOSStudio, or would this blow someting up? Any help very appreciated. Is there a good way to test the optocoupler? Thanks, Travis