Tadao Iida
mbed/ARM 活用事例 第3章 SDカードを使ってファイルを操作するプログラムを作る
Dependencies: TextLCD mbed SDFileSystem
Revision 0:c743b6678d88, committed 2011-10-04
- Comitter:
- sunifu
- Date:
- Tue Oct 04 12:59:42 2011 +0000
- Commit message:
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FATFileSystem.lib Tue Oct 04 12:59:42 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_unsupported/code/fatfilesystem/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MySound.cpp Tue Oct 04 12:59:42 2011 +0000
@@ -0,0 +1,125 @@
+// --- MySound.cpp ---
+#include "MySound.h"
+
+MySound::MySound(PinName out) : _out(out){
+
+}
+
+void MySound::play(char pn,int s, char l)
+{
+ double freq,f;
+ float length ;
+ int scale ;
+ int begin;
+
+ switch(l){
+ case 'W':
+ length = 4 ;
+ break ;
+ case 't':
+ length = 3;
+ break ;
+ case 'D':
+ length = 2 ;
+ break;
+ case 'Q':
+ length = 1;
+ break;
+ case 'q':
+ length = 1.5;
+ break;
+ case 'E':
+ length = 0.5;
+ break;
+ case 'S':
+ length = 0.25;
+ break;
+ case 'T':
+ length = 0.125;
+ break;
+ default:
+ length = 1;
+ }
+
+ switch(pn){
+ case 'a':
+ freq = 415.30469 ;
+ break;
+ case 'A':
+ freq = 440.0;
+ break ;
+ case 'b':
+ freq = 466.16876;
+ break;
+ case 'B':
+ freq = 493.88330;
+ break ;
+ case 'C':
+ freq = 261.62556;
+ break ;
+ case 'd':
+ freq = 277.18263;
+ break ;
+ case 'D':
+ freq = 293.66476;
+ break;
+ case 'e':
+ freq = 311.12698;
+ break ;
+ case 'E':
+ freq = 329.62755;
+ break ;
+ case 'F':
+ freq = 349.22823;
+ break;
+ case 'g':
+ freq = 369.99442;
+ break ;
+ case 'G':
+ freq = 391.99543;
+ break ;
+ case 'R':
+ freq = 0.0;
+ break ;
+ default:
+ freq = 440;
+ }
+
+ switch ( s ){
+ case 6:
+ f = freq * 4 ;
+ break;
+ case 5:
+ f = freq * 2 ;
+ break;
+ case 4:
+ f = freq;
+ break;
+ case 3:
+ f = freq / 2 ;
+ break;
+ case 2:
+ f = freq / 4;
+ break;
+ default:
+ f = freq ;
+ break ;
+ }
+
+ scale = (int)((1.0/f)*1e6) ;
+ _out.period_us(scale);
+
+ t.start();
+ begin = t.read_ms() ;
+ if ( pn != 'R' ){
+ while(t.read_ms()-begin < (int)(500 * length) ){
+ _out.write(0.5f);
+ }
+ }else{
+ while(t.read_ms()-begin < (int)(500 * length) ){
+ _out.write(0.0f);
+ }
+ }
+ t.stop();
+ t.reset();
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MySound.h Tue Oct 04 12:59:42 2011 +0000
@@ -0,0 +1,20 @@
+// --- MySound.h ---
+#ifndef MBED_MY__SOUND_H
+#define MBED_MY__SOUND_H
+
+#include "mbed.h"
+
+class MySound {
+
+public :
+ MySound(PinName out);
+
+ void play(char,int,char);
+
+protected:
+ PwmOut _out;
+ Timer t;
+};
+
+#endif
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Tue Oct 04 12:59:42 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/SDFileSystem/#b1ddfc9a9b25
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Tue Oct 04 12:59:42 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/TextLCD/#44f34c09bd37
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Oct 04 12:59:42 2011 +0000
@@ -0,0 +1,40 @@
+#include "mbed.h"
+#include "TextLCD.h"
+#include "SDFileSystem.h"
+#include "MySound.h"
+
+TextLCD lcd(p24, p26, p27, p28, p29, p30);
+SDFileSystem sd(p5, p6, p7, p8, "sd") ;
+MySound music(p21) ;
+
+
+int main() {
+ char pitch , ln;
+ int scale;
+ FILE *fp;
+ int n;
+
+ lcd.cls();
+ if ( (fp = fopen("/sd/summer.txt","r")) == NULL ) {
+ lcd.printf("Open Failed.") ;
+ return -1;
+ }
+
+ lcd.locate(2,0);
+ lcd.putc(0xC5);
+ lcd.putc(0xC2);
+ lcd.putc(0xC9);
+ lcd.putc(0xB5);
+ lcd.putc(0xD3);
+ lcd.putc(0xB2);
+ lcd.putc(0xC3);
+ lcd.putc(0xDE);
+
+ while( (n = fscanf(fp,"%c %d %c ",&pitch,&scale,&ln)) != EOF ){
+ printf("%d %c %d %c \r\n",n,pitch,scale,ln);
+ music.play(pitch, scale, ln) ;
+ }
+ fclose(fp) ;
+
+
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Oct 04 12:59:42 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/silentnight.h Tue Oct 04 12:59:42 2011 +0000 @@ -0,0 +1,48 @@ +G 4 q +A 4 E +G 4 Q +E 4 t +G 4 q +A 4 E +G 4 Q +E 4 t +D 5 D +D 5 Q +B 4 t +C 5 D +C 5 Q +G 4 t +A 4 D +A 4 Q +C 5 q +B 4 E +A 4 Q +G 4 q +A 4 E +G 4 Q +E 4 t +A 4 D +A 4 Q +C 5 q +B 4 E +A 4 Q +G 4 q +A 4 E +G 4 Q +E 4 t +D 5 D +D 5 Q +F 5 q +D 5 E +B 4 Q +C 5 t +E 5 t +C 5 Q +G 4 Q +E 4 Q +G 4 q +F 4 E +D 4 Q +C 4 t +C 4 t +R 4 Q
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/summer.h Tue Oct 04 12:59:42 2011 +0000 @@ -0,0 +1,104 @@ +E 4 E +E 4 E +F 4 E +G 4 Q +F 4 E +E 4 E +D 4 E +D 4 E +D 4 E +E 4 E +F 4 Q +R 4 Q +E 4 E +E 4 E +E 4 E +F 4 E +G 4 E +F 4 E +F 4 Q +E 4 Q +D 4 E +D 4 E +C 4 Q +R 4 Q +E 4 E +E 4 E +F 4 E +G 4 Q +F 4 E +E 4 E +D 4 E +D 4 E +D 4 E +E 4 E +F 4 Q +R 4 Q +E 4 E +E 4 E +E 4 E +F 4 E +G 4 E +F 4 E +F 4 Q +E 4 E +E 4 E +D 4 E +D 4 E +C 4 q +R 4 Q +A 5 E +A 5 E +A 5 E +B 5 E +C 5 Q +B 5 E +A 5 E +B 5 E +G 4 E +R 5 Q +G 4 E +A 5 E +F 4 E +R 4 D +G 4 E +G 4 E +G 4 E +G 4 E +G 4 S +G 4 S +G 4 S +F 4 E +E 4 E +F 4 Q +F 4 E +E 4 E +D 4 E +E 4 E +F 4 Q +R 4 Q +E 4 E +E 4 E +E 4 E +F 4 E +G 4 Q +F 4 E +E 4 E +D 4 E +D 4 E +D 4 E +E 4 E +F 4 q +R 4 Q +E 4 E +E 4 E +E 4 E +G 4 E +B 5 E +A 5 E +A 5 Q +A 4 Q +B 4 E +D 4 E +C 4 D +R 4 Q