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Handle receiving of sysex conig data

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This commit is contained in:
John Stäck 2019-08-04 10:51:48 +02:00
parent 72b305830f
commit 1cdface168
5 changed files with 124 additions and 24 deletions
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14
NuEVI/midi.cpp
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@ -184,16 +184,24 @@ void sendWLChannel(const uint8_t channel) {
//Only 14 LSB of int value are used (2MSB are discarded), so only works for unsigned data 0-16383
//NOTE: This assumes code is running on a little-endian CPU, both for real device (Teensy) and simulator.
uint16_t midi16to14(uint16_t realdata) {
uint16_t midi16to14(const uint16_t realdata) {
return (realdata & 0x3F80) >>7 | (realdata & 0x007F) <<8;
}
uint16_t midi14to16(uint16_t mididata) {
uint16_t midi14to16(const uint16_t mididata) {
return (mididata & 0x7F00) >> 8 | (mididata & 0x007F) <<7 ;
}
//Read from a memory location, such as MIDI receive buffer
uint16_t midi14to16(const uint8_t* mididata) {
uint8_t msb = *mididata;
uint8_t lsb = *(mididata+1);
return (msb & 0x007F) <<7 | (lsb & 0x007F);
}
//This is a bit different. MSB of each byte is just discarded (instead of discarding MSB for whole value). Just used for CRC (easier to compare)
uint32_t midi32to28(uint32_t realdata) {
uint32_t midi32to28(const uint32_t realdata) {
uint8_t* p = (uint8_t*)&realdata;
uint32_t r=0;