Diff: main.cpp

Revision:

2:b2c4f3766090

Parent:

0:bdbd3d6fc5d5

Child:

3:f53cb35273f8

--- a/main.cpp	Tue May 16 05:18:55 2017 +0000
+++ b/main.cpp	Thu Dec 03 16:09:24 2020 +0000
@@ -1,19 +1,139 @@
 #include "mbed.h"
+#include "rtos.h"
 #include "SDFileSystem.h"
- 
-SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
- 
+#include "wave_player.h"
+#include <string>
+
+SDFileSystem sd(p5, p6, p7, p8, "sd");  // the pinout on the mbed Cool Components workshop board
+Serial pc (USBTX,USBRX);
+DigitalOut led(LED1);
+AnalogOut DACout(p18); // speaker
+wave_player waver(&DACout);
+//#define MAXLINE 100
+//char myline [MAXLINE];
+//int i, inch ;
+string dir;
+string song;
+bool play;
+Mutex speaker_lock;
+
+
+
+void speaker_thread(void const* args)
+{
+    while(1) {
+        // check helper function for new song in GUI
+        // grab file here and put together string
+        // string song_title = "/sd/" + "" + ".wav";
+
+        FILE *wave_file;
+        dir = "/sd/" + song + ".wav";
+        wave_file=fopen(dir.c_str(),"r");
+
+        speaker_lock.lock();
+        if (play) {
+            waver.play(wave_file);
+        }
+        speaker_lock.unlock();
+        fclose(wave_file);
+        Thread::wait(100);
+    }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+int main()
+{
+    Thread speaker(speaker_thread);
+    char c;
+    while(1) {
+        led = !led;
+        wait(0.2);
+        while(!pc.readable()) {
+            Thread::wait(1);
+        }
+        if (pc.getc() == '!') {
+            c = pc.getc();
+            switch(c) {
+                case '1':
+                    song = "africa-toto";
+                    break;
+                case '2':
+                    song = "around_the_world-atc";
+                    break;
+                case '3':
+                    song = "beautiful_life-ace_of_base";
+                    break;
+                case '4':
+                    song = "dont_speak-no_doubt";
+                    break;
+                case '5':
+                    song = "my-love";
+                    break;
+                case '6':
+                    song = "Song1_test";
+                    break;
+                case 'P':
+                    // wave_player plays
+                    play = true;
+                    break;
+                case 'S':
+                    // wave_player stops
+                    play = false;
+                    break;
+                default:
+                    break;
+            }
+        }
+        Thread::wait(200);
+    }
+}
+
+
+
+
+
+
+
+//============================================================================//
+/*
 int main() {
-    printf("Hello World!\n");   
- 
-    mkdir("/sd/mydir", 0777);
-    
-    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
+    printf("\n\r= = = = = = = = = =");
+    printf("\n\rHello World!\n\r");
+    mkdir("/sd/mydir", 0777); // Test that previous run had created permanent folder
+    // write
+    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w"); // Commenting out, in a later run, from here ..
     if(fp == NULL) {
         error("Could not open file for write\n");
     }
-    fprintf(fp, "Hello fun SD Card World!");
-    fclose(fp); 
- 
-    printf("Goodbye World!\n");
+    fprintf(fp, "Hello from SD Card World!");
+    fclose(fp);
+    printf("Created file in sdcard\n\r"); //.. to here shows file really is permanent .. .. since it still reads correctly.
+    // read
+    printf("Reading file\n");
+    string inputString;
+    FILE *fp1 = fopen("/sd/mydir/sdtest.txt", "r");
+    if (fp1 == NULL) {
+       printf("Error Open \n");
+    } else {
+        printf("\r");
+        while(fscanf(fp1, "%s", inputString)!=EOF) {
+            printf("%s ", inputString.c_str());
+        }
+    }
+    fclose(fp1);                              // close the file
+    printf("\n\rFinished reading the file");
+    printf("\n\r= = = = = = = = = =");
+
+    return 0;
 }
+*/
\ No newline at end of file