Diff: main.cpp

Revision:

0:665c7d36f533

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Oct 11 10:53:42 2010 +0000
@@ -0,0 +1,295 @@
+//
+// mbeduino MIDI Shield test
+//
+// original: SparkFun MIDI Sheild test code
+//
+// 2010/10/11 ported by: xshige
+// I keep the original(Arduino) programming style as much as possible
+
+#include "mbed.h"
+#include "ArduinoShield.h"
+
+// ---- --Arduino program start ------------
+
+// SparkFun MIDI Sheild and MIDI Breakout test code
+// Defines bare-bones routines for sending and receiving MIDI data
+// Written 02/16/10
+
+
+// defines for MIDI Shield components only
+#if 1
+#define KNOB1  ARD_A0
+#define KNOB2  ARD_A1
+
+#define BUTTON1  ARD_D2
+#define BUTTON2  ARD_D3
+#define BUTTON3  ARD_D4
+
+#define STAT1  ARD_D7
+#define STAT2  ARD_D6
+#endif
+#if 0
+#define KNOB1  0
+#define KNOB2  1
+
+#define BUTTON1  2
+#define BUTTON2  3
+#define BUTTON3  4
+
+#define STAT1  7
+#define STAT2  6
+#endif
+
+#define OFF 1
+#define ON 2
+#define WAIT 3
+
+byte incomingByte;
+byte note;
+byte velocity;
+int pot;
+
+byte byte1;
+byte byte2;
+byte byte3;
+
+int action=2; //1 =note off ; 2=note on ; 3= wait
+
+#if 1
+// prototype
+char button(int button_num);
+// button_num should be int not char!.
+void Midi_Send(byte cmd, byte data1, byte data2);
+
+// port allocation
+DigitalOut stat1(STAT1);
+DigitalOut stat2(STAT2);
+    
+AnalogIn knob1(KNOB1);
+AnalogIn knob2(KNOB2);
+
+DigitalInOut button1(BUTTON1);
+DigitalInOut button2(BUTTON2);
+DigitalInOut button3(BUTTON3);
+
+Serial midi(ARD_TX, ARD_RX);
+#endif
+
+void setup() {
+#if 1
+  button1.mode(PullUp);
+  button2.mode(PullUp);
+  button3.mode(PullUp);
+#endif
+#if 0
+  pinMode(STAT1,OUTPUT);   
+  pinMode(STAT2,OUTPUT);
+
+  pinMode(BUTTON1,INPUT);
+  pinMode(BUTTON2,INPUT);
+  pinMode(BUTTON3,INPUT);
+
+  digitalWrite(BUTTON1,HIGH);
+  digitalWrite(BUTTON2,HIGH);
+  digitalWrite(BUTTON3,HIGH);
+#endif
+
+  for(int i = 0;i < 10;i++) // flash MIDI Sheild LED's on startup
+  {
+#if 1
+    stat1=HIGH;  
+    stat2=LOW;
+#endif
+#if 0
+    digitalWrite(STAT1,HIGH);  
+    digitalWrite(STAT2,LOW);
+#endif
+    delay(30);
+#if 1
+   stat1=LOW;  
+   stat2=HIGH;
+#endif
+#if 0
+    digitalWrite(STAT1,LOW);  
+    digitalWrite(STAT2,HIGH);
+#endif
+    delay(30);
+  }
+#if 1
+  stat1=HIGH;   
+  stat2=HIGH;
+#endif  
+#if 0
+  digitalWrite(STAT1,HIGH);   
+  digitalWrite(STAT2,HIGH);
+#endif
+
+  //start serial with midi baudrate 31250
+#if 1
+  midi.baud(31250);
+#endif
+#if 0
+  Serial.begin(31250);     
+#endif
+}
+
+void loop () {
+
+  //*************** MIDI OUT ***************//
+#if 1
+  pot = knob1.read_u16();
+//printf("pot:%d ",pot);// debug
+#endif
+#if 0
+  pot = analogRead(0);
+#endif
+#if 1
+  note = pot/511;  // convert value to value 0-127
+#endif
+#if 0
+  note = pot/8;  // convert value to value 0-127
+#endif
+  if(button(BUTTON1) || button(BUTTON2) || button(BUTTON3))
+  {  
+    Midi_Send(0x90,note,0x45);
+    while(button(BUTTON1) || button(BUTTON2) || button(BUTTON3));
+  }
+
+  //*************** MIDI LOOPBACK ******************//
+#if 1
+  if(midi.readable() > 0)
+#endif
+#if 0
+  if(Serial.available() > 0)
+#endif
+  {
+#if 1
+    byte1 = midi.getc();
+    byte2 = midi.getc();
+    byte3 = midi.getc();
+#endif
+#if 0
+    byte1 = Serial.read();
+    byte2 = Serial.read();
+    byte3 = Serial.read();
+#endif
+    Midi_Send(byte1, byte2, byte3);
+  }
+
+  //*************** MIDI IN ***************//
+#if 1
+  if (midi.readable() > 0) {
+    // read the incoming byte:
+    incomingByte = midi.getc();
+printf("Incoming MIDI data: %02X\r\n",incomingByte);//debug
+#endif
+#if 0
+  if (Serial.available() > 0) {
+    // read the incoming byte:
+    incomingByte = Serial.read();
+#endif
+    // wait for as status-byte, channel 1, note on or off
+    if (incomingByte== 144) // Note on
+    { 
+      action = OFF;
+    }
+    else if (incomingByte== 128) // Note off
+    { 
+      action = ON;
+    }
+    else if (note==0 && action != WAIT) // note on, wait for note value
+    { 
+      note=incomingByte;
+    }
+    else if (note!=0 && action != WAIT)  // velocity
+    { 
+      velocity=incomingByte;
+      if(action == ON){ 
+        Midi_Send(0x90,note,velocity); 
+      }
+      if(action == OFF){ 
+        Midi_Send(0x80,note,velocity); 
+      }
+      note=0;
+      velocity=0;
+      action=WAIT;
+    }
+    else{
+    }
+  }
+
+}
+
+void Midi_Send(byte cmd, byte data1, byte data2) {
+#if 1
+printf("Outgoing MIDI data: %02X:%02X:%02X\r\n",cmd,data1,data2); // debug
+  midi.putc(cmd);
+  midi.putc(data1);
+  midi.putc(data2);
+#endif
+#if 0
+  Serial.print(cmd, BYTE);
+  Serial.print(data1, BYTE);
+  Serial.print(data2, BYTE);
+#endif
+}
+
+void blink(){
+#if 1
+  stat1=HIGH;
+#endif
+#if 0
+  digitalWrite(STAT1, HIGH);
+#endif
+  delay(100);
+#if 1
+  stat1=LOW;
+#endif
+#if 0
+  digitalWrite(STAT1, LOW);
+#endif
+  delay(100);
+}
+#if 1
+char button(int button_num)
+#endif
+#if 0
+char button(char button_num)
+#endif
+{
+#if 1
+    if (BUTTON1==button_num) return (!button1.read());
+    if (BUTTON2==button_num) return (!button2.read());
+    if (BUTTON3==button_num) return (!button3.read());
+    return 0; // never happen
+#endif
+#if 0
+  return (!(digitalRead(button_num)));
+#endif
+}
+
+
+// -------- arduino hidden main ---------
+
+void init(void) {
+ // make debug port Fast
+   Serial pc(USBTX, USBRX);
+//    pc.baud(9600);
+    pc.baud(115200);
+//  pc.baud(230400);
+    printf("mbeduino MIDI Shield Test\r\n");
+    printf("Rotate Knob#1 to change note.\r\n"
+            "Push any button to send MIDI note data.\r\n");
+}
+
+int main(void)
+{
+    init();
+ 
+    setup();
+ 
+    for (;;)
+        loop();
+ 
+    return 0;
+}