Hey there @Blindsmyth.
I was trying to archieve the same and failed .
Reading the midi docs and a tutorial for arduino , I could successfully "infer?" the way to do it in axo world.
Here is the patch , original extra_io_midi , with the added code . But I attach also the needed code modification ( or just copy all and replace ) the receiving script object
extra_midi_io_clk.axp (8.5 KB)
uint8_t StatusToMsgLength(uint8_t t){
switch(t) {
case 0x0:
case 0x1:
case 0x2:
case 0x3:
case 0x4:
case 0x5:
case 0x6:
case 0x7:
return 0;
case 0x8:
case 0x9:
case 0xa:
case 0xb:
return 3;
case 0xc:
case 0xd:
return 2;
case 0xe:
return 3;
default:
return -1;
}
}
uint8_t SysToMsgLength(uint8_t t){
switch(t) {
case 0x0:
return -1; // 0xf0=sysex start. may vary
case 0x1:
return 2; // 0xf1=MIDI Time Code. 2 bytes
case 0x2:
return 3; // 0xf2=MIDI Song position. 3 bytes
case 0x3:
return 2; // 0xf3=MIDI Song Select. 2 bytes.
case 0x4:
return 1; // 0xf4=undefined
case 0x5:
return 1; // 0xf5=undefined
case 0x6:
return 1; // 0xf6=TUNE Request
case 0x7:
return 1; // 0xf7=sysex end.
case 0x8:
return 1; // 0xf8=timing clock. 1 byte
case 0x9:
return 1; // 0xf9=proposed measure end?
case 0xa:
return 1; // 0xfa=start. 1 byte
case 0xb:
return 1; // 0xfb=continue. 1 byte
case 0xc:
return 1; // 0xfc=stop. 1 byte
case 0xd:
return 1; // 0xfd=undefined
case 0xe:
return 1; // 0xfe=active sensing. 1 byte
case 0xf:
default:
return 3; // 0xff= not reset, but a META-EVENT, which is always 3 bytes
}
}
unsigned char MidiByte0;
unsigned char MidiByte1;
unsigned char MidiByte2;
unsigned char MidiCurData;
unsigned char MidiNumData;
uint8_t port = 0;
void setup(){
MidiNumData = 0;
MidiCurData = 0;
}
void MidiInByteHandler(uint8_t data) {
int8_t len;
if(data & 0xf8){
MidiInMsgHandler(MIDI_DEVICE_INTERNAL,port,0xf8,0,0);
}
if (data & 0x80) {
len = StatusToMsgLength(data >> 4);
if (len == -1) {
len = SysToMsgLength(data - 0xF0);
}
if (len == 1) {
MidiInMsgHandler(MIDI_DEVICE_INTERNAL,port,data,0,0);
} else {
MidiByte0 = data;
MidiNumData = len - 1;
MidiCurData = 0;
}
}
// FILTER AND SEND CLOCK MESSAGE
else // not a status byte
{
if (MidiCurData == 0) {
MidiByte1 = data;
if (MidiNumData == 1) {
// 2 byte message complete
MidiInMsgHandler(MIDI_DEVICE_INTERNAL,port,MidiByte0, MidiByte1,0);
MidiCurData = 0;
}
else
MidiCurData++;
}
else if (MidiCurData == 1) {
MidiByte2 = data;
if (MidiNumData == 2) {
MidiInMsgHandler(MIDI_DEVICE_INTERNAL,port,MidiByte0, MidiByte1, MidiByte2);
MidiCurData = 0;
}
}
}
//LogTextMessage("data, %d",data);
}
void loop(){
while(!sdGetWouldBlock(&SD2))
{
char ch = sdGet(&SD2);
MidiInByteHandler(ch);
}
}
so no start/stop etc just yet big shout out to @Hugo for this wonderful code. You guys could try and let me know , im not really sure if I correctly did this step in particular , but hey , my Ibar 16 is happy and dancing via UART
