prein öno

Now i notice! Some presets sound different and even the startup sound was not audible before - But when you don't know how they should sound than you think: okay - not so nice preset :wink: The tuning error for the 3rd bit in the low byte was apparently to small to notice. No - was to lazy :) Just had a look on the SID spec to narrow the search area, played some notes and than it was obvious. (especially when having a look on the completely failing octave) At least the highbyte values are the same as in the table.

Sid's Pin 18 / D3 is was shorted to ground :queen:

Sid's Pin 18 / D3 is shorted to ground :shocked:

Thats exactly what happens! I got jumps on the above mentioned notes (A2, G3, A3) But would this not also affect other registers? Are the same Values for pitch used like here: http://archive.6502.org/datasheets/mos_6582_sid.pdf (Appendix A)? I found out there is a correlation between the failing notes and the 11th databit!!! Thats the reason the Octave from midi b1 - table b2 - 123 hz - 0x0817 to mid a#3 - table a#3 = 233 hz - 0x0F46 are not working.ALL lower notes work. In the upper octaves all notes with 3rd digit > 7 produce wrong notes

Successfully finished building a sammichSID last week. Everything went fine. It wasnt even that difficult to build. :cool: You did really great work with the kit an the superb build guide! :thumbsup: The only issue is, that i cannot trigger the right notes via midi. Between C3 and C4 all is played well except G3 (plays C3) and A3 (plays D3). Below C3 only B2 is correct. Going deeper results in large steps heading C-2. Above C3 there are also incorrect notes in each octave. Sysex communication has no problems. I could upload the preset sets and i can use the MidiBox V2 Editor. (Can watch the parameter changing on the display when editing on the screen) So i assume sysex and the midi communication in common is working. I tried a clean patch, with one OSC, no detune, no finetune and no transposition. For every factory preset the problem is the same depending on the transpose setting. BL and LD mode makes no difference. I am using Rc37. I crosschecked with another HW-Synth. Seq, cable and midi-out is okay. Did i overlooked some "special" scale option or what can go wrong in this context?