Reichelt, Farnel, Microchip have sent all parts. (except the optocoupler SFH6319 I wanted to use).
How can I check if bootloader was successfully burned and the pic ist running? Doas it send some kind of MIDI-Events at booting time? Or can I force to do it?
go on the ucapps.de website, scroll down on the left till you see “MIOS” click on “Bootstrap Loader” (I guess you already found this page if you’ve burn the bootstrap firmware).
Scroll down on the bootstrap page till you get to “Solution” and download and set up Midi-Ox as described.
Then when you power on the core with the PIC18 stuffed, and midi out connected you should see SysEx string “F0 00 00 7E 40 00 F7” this is a request for upload which also serves as proof that the bootstrap loader is downloaded correctly.