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MicroDexed
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Isolated loading sysex from SD and moving sysex data into engine.

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pull/4/head
Holger Wirtz 7 years ago
parent 41ff645b3b
commit d58ad40ba6
8 changed files with 202 additions and 179 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. BIN
      .dexed_sysex.cpp.swp
  2. BIN
      .swp
  3. 6
      MicroDexed.ino
  4. 33
      config.h
  5. 151
      dexed.cpp
  6. 3
      dexed.h
  7. 138
      dexed_sysex.cpp
  8. 46
      dexed_sysex.h

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.dexed_sysex.cpp.swp
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6
MicroDexed.ino
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@ -46,6 +46,7 @@ bool sd_card_available = false;
#ifdef TEST_MIDI #ifdef TEST_MIDI
IntervalTimer sched_note_on; IntervalTimer sched_note_on;
IntervalTimer sched_note_off; IntervalTimer sched_note_off;
uint8_t _voice_counter=0;
#endif #endif
void setup() void setup()
@ -83,7 +84,6 @@ void setup()
AudioMemoryUsageMaxReset(); AudioMemoryUsageMaxReset();
#endif #endif
load_sysex("ROM1A.SYX", 10);
#ifdef DEBUG #ifdef DEBUG
show_patch(); show_patch();
#endif #endif
@ -113,7 +113,6 @@ void setup()
//dexed->data[160] = 7; // foot ctrl assign all //dexed->data[160] = 7; // foot ctrl assign all
//dexed->data[162] = 7; // breath ctrl assign all //dexed->data[162] = 7; // breath ctrl assign all
//dexed->data[164] = 7; // at ctrl assign all //dexed->data[164] = 7; // at ctrl assign all
//queue_midi_event(0xb0, 1, 99); // test mod wheel //queue_midi_event(0xb0, 1, 99); // test mod wheel
//queue_midi_event(0xb0, 2, 99); // test breath ctrl //queue_midi_event(0xb0, 2, 99); // test breath ctrl
//queue_midi_event(0xb0, 4, 99); // test food switch //queue_midi_event(0xb0, 4, 99); // test food switch
@ -211,6 +210,7 @@ void note_off(void)
queue_midi_event(0x80, TEST_NOTE + 52, 0); // 14 queue_midi_event(0x80, TEST_NOTE + 52, 0); // 14
queue_midi_event(0x80, TEST_NOTE + 57, 0); // 15 queue_midi_event(0x80, TEST_NOTE + 57, 0); // 15
queue_midi_event(0x80, TEST_NOTE + 60, 0); // 16 queue_midi_event(0x80, TEST_NOTE + 60, 0); // 16
load_sysex("ROM1A.SYX", ++_voice_counter%32);
} }
#endif #endif
@ -327,7 +327,7 @@ void show_patch(void)
Serial.print(F("[")); Serial.print(F("["));
Serial.print(voicename); Serial.print(voicename);
Serial.println(F("]")); Serial.println(F("]"));
for (i = DEXED_VOICE_OFFSET + DEXED_NAME; i < DEXED_VOICE_OFFSET + DEXED_NAME + 10 ; i++) for (i = DEXED_GLOBAL_PARAMETER_OFFSET; i <= DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MAX_NOTES; i++)
{ {
Serial.print(i, DEC); Serial.print(i, DEC);
Serial.print(F(": ")); Serial.print(F(": "));

33
config.h
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@ -1,11 +1,28 @@
// /*
// MicroDexed MicroDexed
//
// A port of the Dexed sound engine (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield MicroDexed is a port of the Dexed sound engine
// (c)2018 H. Wirtz <wirtz@parasitstudio.de> (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield
//
(c)2018 H. Wirtz <wirtz@parasitstudio.de>
//#define TEST_MIDI 1
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define TEST_MIDI 1
#define TEST_NOTE 40 #define TEST_NOTE 40
#define TEST_VEL_MIN 60 #define TEST_VEL_MIN 60
#define TEST_VEL_MAX 110 #define TEST_VEL_MAX 110

151
dexed.cpp
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@ -1,25 +1,25 @@
/* /*
* MicroDexed MicroDexed
*
* MicroDexed is a port of the Dexed sound engine MicroDexed is a port of the Dexed sound engine
* (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield
*
* (c)2018 H. Wirtz <wirtz@parasitstudio.de> (c)2018 H. Wirtz <wirtz@parasitstudio.de>
*
* This program is free software; you can redistribute it and/or modify This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version. (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details. GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation, along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/ */
#include "synth.h" #include "synth.h"
@ -197,7 +197,7 @@ bool Dexed::processMidiMessage(uint8_t type, uint8_t data1, uint8_t data2)
return (true); return (true);
break; break;
case 123: case 123:
notes_off(); notesOff();
return (true); return (true);
break; break;
} }
@ -466,7 +466,7 @@ void Dexed::panic(void) {
} }
} }
void Dexed::notes_off(void) { void Dexed::notesOff(void) {
for (uint8_t i = 0; i < MAX_ACTIVE_NOTES; i++) { for (uint8_t i = 0; i < MAX_ACTIVE_NOTES; i++) {
if (voices[i].live == true && voices[i].keydown == true) { if (voices[i].live == true && voices[i].keydown == true) {
voices[i].keydown = false; voices[i].keydown = false;
@ -477,9 +477,112 @@ void Dexed::notes_off(void) {
void Dexed::setMaxNotes(uint8_t n) { void Dexed::setMaxNotes(uint8_t n) {
if (n <= MAX_ACTIVE_NOTES) if (n <= MAX_ACTIVE_NOTES)
{ {
notes_off(); notesOff();
max_notes = n; max_notes = n;
panic(); panic();
controllers.refresh(); controllers.refresh();
} }
} }
bool Dexed::loadSysexVoice(uint8_t* new_data)
{
uint8_t* p_data = data;
uint8_t op;
uint8_t tmp;
notesOff();
for (op = 0; op < 6; op++)
{
// DEXED_OP_EG_R1, // 0
// DEXED_OP_EG_R2, // 1
// DEXED_OP_EG_R3, // 2
// DEXED_OP_EG_R4, // 3
// DEXED_OP_EG_L1, // 4
// DEXED_OP_EG_L2, // 5
// DEXED_OP_EG_L3, // 6
// DEXED_OP_EG_L4, // 7
// DEXED_OP_LEV_SCL_BRK_PT, // 8
// DEXED_OP_SCL_LEFT_DEPTH, // 9
// DEXED_OP_SCL_RGHT_DEPTH, // 10
memcpy(&data[op * 21], &new_data[op * 17], 11);
tmp = new_data[(op * 17) + 11];
*(p_data + DEXED_OP_SCL_LEFT_CURVE + (op * 21)) = (tmp & 0x3);
*(p_data + DEXED_OP_SCL_RGHT_CURVE + (op * 21)) = (tmp & 0x0c) >> 2;
tmp = new_data[(op * 17) + 12];
*(p_data + DEXED_OP_OSC_DETUNE + (op * 21)) = (tmp & 0x78) >> 3;
*(p_data + DEXED_OP_OSC_RATE_SCALE + (op * 21)) = (tmp & 0x07);
tmp = new_data[(op * 17) + 13];
*(p_data + DEXED_OP_KEY_VEL_SENS + (op * 21)) = (tmp & 0x1c) >> 2;
*(p_data + DEXED_OP_AMP_MOD_SENS + (op * 21)) = (tmp & 0x03);
*(p_data + DEXED_OP_OUTPUT_LEV + (op * 21)) = new_data[(op * 17) + 14];
tmp = new_data[(op * 17) + 15];
*(p_data + DEXED_OP_FREQ_COARSE + (op * 21)) = (tmp & 0x3e) >> 1;
*(p_data + DEXED_OP_OSC_MODE + (op * 21)) = (tmp & 0x01);
*(p_data + DEXED_OP_FREQ_FINE + (op * 21)) = new_data[(op * 17) + 16];
}
// DEXED_PITCH_EG_R1, // 0
// DEXED_PITCH_EG_R2, // 1
// DEXED_PITCH_EG_R3, // 2
// DEXED_PITCH_EG_R4, // 3
// DEXED_PITCH_EG_L1, // 4
// DEXED_PITCH_EG_L2, // 5
// DEXED_PITCH_EG_L3, // 6
// DEXED_PITCH_EG_L4, // 7
memcpy(&data[DEXED_VOICE_OFFSET], &new_data[102], 8);
tmp = new_data[110];
*(p_data + DEXED_VOICE_OFFSET + DEXED_ALGORITHM) = (tmp & 0x1f);
tmp = new_data[111];
*(p_data + DEXED_VOICE_OFFSET + DEXED_OSC_KEY_SYNC) = (tmp & 0x08) >> 3;
*(p_data + DEXED_VOICE_OFFSET + DEXED_FEEDBACK) = (tmp & 0x07);
// DEXED_LFO_SPEED, // 11
// DEXED_LFO_DELAY, // 12
// DEXED_LFO_PITCH_MOD_DEP, // 13
// DEXED_LFO_AMP_MOD_DEP, // 14
memcpy(&data[DEXED_VOICE_OFFSET + DEXED_LFO_SPEED], &new_data[112], 4);
tmp = new_data[116];
*(p_data + DEXED_VOICE_OFFSET + DEXED_LFO_PITCH_MOD_SENS) = (tmp & 0x30) >> 4;
*(p_data + DEXED_VOICE_OFFSET + DEXED_LFO_WAVE) = (tmp & 0x0e) >> 1;
*(p_data + DEXED_VOICE_OFFSET + DEXED_LFO_SYNC) = (tmp & 0x01);
*(p_data + DEXED_VOICE_OFFSET + DEXED_TRANSPOSE) = new_data[117];
memcpy(&data[DEXED_VOICE_OFFSET + DEXED_NAME], &new_data[118], 10);
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_PITCHBEND_RANGE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_PITCHBEND_STEP) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MODWHEEL_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MODWHEEL_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_FOOTCTRL_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_FOOTCTRL_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_BREATHCTRL_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_BREATHCTRL_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_AT_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_AT_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MASTER_TUNE) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP1_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP2_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP3_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP4_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP5_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP6_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MAX_NOTES) = MAX_NOTES;
setOPs((*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP1_ENABLE) << 5) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP2_ENABLE) << 4) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP3_ENABLE) << 3) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP4_ENABLE) << 2) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP5_ENABLE) << 1) |
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP6_ENABLE ));
setMaxNotes(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MAX_NOTES));
doRefreshVoice();
activate();
#ifdef DEBUG
char voicename[11];
memset(voicename, 0, sizeof(voicename));
strncpy(voicename, (char *)&data[145], sizeof(voicename) - 1);
Serial.print(F("["));
Serial.print(voicename);
Serial.println(F("]"));
#endif
return (true);
}

3
dexed.h
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@ -137,10 +137,11 @@ class Dexed
void getSamples(uint16_t n_samples, int16_t* buffer); void getSamples(uint16_t n_samples, int16_t* buffer);
bool processMidiMessage(uint8_t type, uint8_t data1, uint8_t data2); bool processMidiMessage(uint8_t type, uint8_t data1, uint8_t data2);
void panic(void); void panic(void);
void notes_off(void); void notesOff(void);
void setMaxNotes(uint8_t n); void setMaxNotes(uint8_t n);
void doRefreshVoice(void); void doRefreshVoice(void);
void setOPs(uint8_t ops); void setOPs(uint8_t ops);
bool loadSysexVoice(uint8_t* data);
Controllers controllers; Controllers controllers;

138
dexed_sysex.cpp
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@ -48,9 +48,13 @@ void load_sysex(char *name, uint8_t voice_number)
{ {
if (strcmp(name, entry.name()) == 0) if (strcmp(name, entry.name()) == 0)
{ {
uint8_t data[128];
Serial.println(entry.name()); Serial.println(entry.name());
check_sysex(entry); if (get_sysex_voice(entry, voice_number, data))
load_sysex_voice(entry, voice_number); dexed->loadSysexVoice(data);
else
Serial.println(F("Cannot load voice data"));
entry.close(); entry.close();
break; break;
} }
@ -61,121 +65,10 @@ void load_sysex(char *name, uint8_t voice_number)
} }
} }
bool load_sysex_voice(File sysex, uint8_t voice_number) bool get_sysex_voice(File sysex, uint8_t voice_number, uint8_t* data)
{
File file;
if (file = SD.open(sysex.name()))
{
uint8_t* p_data = dexed->data;
uint8_t op;
uint8_t tmp;
dexed->notes_off();
file.seek(6 + (voice_number * 128));
for (op = 0; op < 6; op++)
{
// DEXED_OP_EG_R1, // 0
// DEXED_OP_EG_R2, // 1
// DEXED_OP_EG_R3, // 2
// DEXED_OP_EG_R4, // 3
// DEXED_OP_EG_L1, // 4
// DEXED_OP_EG_L2, // 5
// DEXED_OP_EG_L3, // 6
// DEXED_OP_EG_L4, // 7
// DEXED_OP_LEV_SCL_BRK_PT, // 8
// DEXED_OP_SCL_LEFT_DEPTH, // 9
// DEXED_OP_SCL_RGHT_DEPTH, // 10
file.read(p_data + (op * 21) + DEXED_OP_EG_R1, 11);
tmp = file.read();
*(p_data + DEXED_OP_SCL_LEFT_CURVE + (op * 21)) = (tmp & 0x3);
*(p_data + DEXED_OP_SCL_RGHT_CURVE + (op * 21)) = (tmp & 0x0c) >> 2;
tmp = file.read();
*(p_data + DEXED_OP_OSC_DETUNE + (op * 21)) = (tmp & 0x78) >> 3;
*(p_data + DEXED_OP_OSC_RATE_SCALE + (op * 21)) = (tmp & 0x07);
tmp = file.read();
*(p_data + DEXED_OP_KEY_VEL_SENS + (op * 21)) = (tmp & 0x1c) >> 2;
*(p_data + DEXED_OP_AMP_MOD_SENS + (op * 21)) = (tmp & 0x03);
*(p_data + DEXED_OP_OUTPUT_LEV + (op * 21)) = file.read();
tmp = file.read();
*(p_data + DEXED_OP_FREQ_COARSE + (op * 21)) = (tmp & 0x3e) >> 1;
*(p_data + DEXED_OP_OSC_MODE + (op * 21)) = (tmp & 0x01);
file.read(p_data + DEXED_OP_FREQ_FINE + (op * 21), 1);
}
// DEXED_PITCH_EG_R1, // 0
// DEXED_PITCH_EG_R2, // 1
// DEXED_PITCH_EG_R3, // 2
// DEXED_PITCH_EG_R4, // 3
// DEXED_PITCH_EG_L1, // 4
// DEXED_PITCH_EG_L2, // 5
// DEXED_PITCH_EG_L3, // 6
// DEXED_PITCH_EG_L4, // 7
file.read(p_data + DEXED_VOICE_OFFSET + DEXED_PITCH_EG_R1, 8);
tmp = file.read();
*(p_data + DEXED_VOICE_OFFSET + DEXED_ALGORITHM) = (tmp & 0x1f);
tmp = file.read();
*(p_data + DEXED_VOICE_OFFSET + DEXED_OSC_KEY_SYNC) = (tmp & 0x08) >> 3;
*(p_data + DEXED_VOICE_OFFSET + DEXED_FEEDBACK) = (tmp & 0x07);
// DEXED_LFO_SPEED, // 11
// DEXED_LFO_DELAY, // 12
// DEXED_LFO_PITCH_MOD_DEP, // 13
// DEXED_LFO_AMP_MOD_DEP, // 14
file.read(p_data + DEXED_VOICE_OFFSET + DEXED_LFO_SPEED, 4);
tmp = file.read();
*(p_data + DEXED_VOICE_OFFSET + DEXED_LFO_PITCH_MOD_SENS) = (tmp & 0x30) >> 4;
*(p_data + DEXED_VOICE_OFFSET + DEXED_LFO_WAVE) = (tmp & 0x0e) >> 1;
*(p_data + DEXED_VOICE_OFFSET + DEXED_LFO_SYNC) = (tmp & 0x01);
file.read(p_data + DEXED_VOICE_OFFSET + DEXED_TRANSPOSE, 1);
file.read(p_data + DEXED_VOICE_OFFSET + DEXED_NAME, 10);
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_PITCHBEND_RANGE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_PITCHBEND_STEP) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MODWHEEL_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MODWHEEL_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_FOOTCTRL_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_FOOTCTRL_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_BREATHCTRL_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_BREATHCTRL_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_AT_RANGE) = 99;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_AT_ASSIGN) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MASTER_TUNE) = 0;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP1_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP2_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP3_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP4_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP5_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP6_ENABLE) = 1;
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MAX_NOTES) = MAX_NOTES;
dexed->setOPs((*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP1_ENABLE) << 5) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP2_ENABLE) << 4) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP3_ENABLE) << 3) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP4_ENABLE) << 2) |
(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP5_ENABLE) << 1) |
*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_OP6_ENABLE ));
dexed->setMaxNotes(*(p_data + DEXED_GLOBAL_PARAMETER_OFFSET + DEXED_MAX_NOTES));
dexed->doRefreshVoice();
dexed->activate();
#ifdef DEBUG
char voicename[11];
memset(voicename, 0, sizeof(voicename));
strncpy(voicename, (char *)&dexed->data[145], sizeof(voicename) - 1);
Serial.print(F("["));
Serial.print(voicename);
Serial.println(F("]"));
#endif
return (true);
}
else
return (false);
}
bool check_sysex(File sysex)
{ {
File file; File file;
uint16_t i; uint16_t i,n;
uint32_t calc_checksum = 0; uint32_t calc_checksum = 0;
if (sysex.size() != 4104) // check sysex size if (sysex.size() != 4104) // check sysex size
@ -205,8 +98,18 @@ bool check_sysex(File sysex)
return (false); return (false);
} }
file.seek(6); // start of 32*128 (=4096) bytes data file.seek(6); // start of 32*128 (=4096) bytes data
for (i = 0; i < 4096; i++) for (i = 0; i < 32; i++)
calc_checksum += (file.read() & 0x7F); // calculate checksum {
for (n = 0; n < 128; n++)
{
uint8_t d = file.read();
if (i == voice_number)
{
data[n] = d;
}
calc_checksum += (d & 0x7F); // calculate checksum
}
}
calc_checksum = uint8_t(~calc_checksum + 1); calc_checksum = uint8_t(~calc_checksum + 1);
if (calc_checksum != uint8_t(file.read())) if (calc_checksum != uint8_t(file.read()))
{ {
@ -214,6 +117,5 @@ bool check_sysex(File sysex)
return (false); return (false);
} }
} }
file.close();
return (true); return (true);
} }

46
dexed_sysex.h
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@ -1,30 +1,30 @@
/* /*
* MicroDexed MicroDexed
*
* MicroDexed is a port of the Dexed sound engine MicroDexed is a port of the Dexed sound engine
* (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield
*
* (c)2018 H. Wirtz <wirtz@parasitstudio.de> (c)2018 H. Wirtz <wirtz@parasitstudio.de>
*
* This program is free software; you can redistribute it and/or modify This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version. (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details. GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation, along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/ */
extern bool sd_card_available; extern bool sd_card_available;
extern Dexed* dexed; extern Dexed* dexed;
void load_sysex(char *name, uint8_t voice_number); void load_sysex(char *name, uint8_t voice_number);
bool load_sysex_voice(File sysex, uint8_t voice_number); bool get_sysex_voice(File sysex, uint8_t voice_number, uint8_t* data);
bool check_sysex(File sysex);

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