Diff: main.cpp

Revision:

0:a38a3a6a3724

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Feb 12 01:36:34 2012 +0000
@@ -0,0 +1,266 @@
+/**************************************************************************************/
+/*SMARTWAV intelligent embedded Audio processor unit
+ those examples are for use the SMARTWAV with the mbed microcontoller, just connect tx,rx,and reset
+ Board:
+ http://vizictechnologies.com/#/smart-wav/4559021187
+ 
+ This example requires pre-loaded content to the micro SD card, Audio .WAV files!
+ 
+ www.vizictechnologies.com 
+ Vizic Technologies copyright 2012 */
+/**************************************************************************************/
+/**************************************************************************************/
+ 
+#include "mbed.h"
+#include "SMARTWAV.h"
+#include "SMARTGPU.h"
+
+SMARTWAV sWav(p13,p14,p15);        //(TX,RX,Reset);
+SMARTGPU lcd(p28,p27,p29);        //(TX,RX,Reset);
+
+//Each times we use the touchscreen we must define a int array that stores the X and Y readed or touched coordinates.
+int touch[2];
+//Each times we use the touchicon we must define a char array that stores the name of the touched icon.
+char icon[3];
+
+//Global Variables
+char playList[500];     //an array for storing the retrieved list of Audio files
+char dirList[500];     //an array for storing the retrieved list of Folders/Dirs
+char songName[9];       // 8 characters + null character
+char times[6]={0};         //array to store the times
+unsigned char audioItems=0;      //variable storing the total of audio files on the 'playlist' array
+unsigned char dirItems=0;      //variable storing the total of Folders/Dirs on the 'dirList' array
+unsigned char totalAudioItems=0;
+unsigned char songPointer=0;
+unsigned char minutes=0,seconds=0;
+unsigned int progress=0; //to draw song progress
+
+/************************************************************************************************/
+//Simple function to count the number of items on a list
+/************************************************************************************************/
+unsigned char getListItems(char *list){  // returns the number of audio files on current folder/Dir, if none or fails returns 0
+    unsigned int i=0;
+    unsigned char counter=0;
+    
+    while(1){
+        if(list[i]==','){
+            counter ++;
+        }
+        if(list[i]==0x00){
+           return counter;
+        }
+        i++;
+    }
+}
+
+/************************************************************************************************/
+//Simple function that returns the name of a given item number of a list
+/************************************************************************************************/
+unsigned char getListNameItem(char *list, unsigned char itemNo, char *name){  // returns the name of the sWav file number 'Item' on the given 'name' buffer; on current buffer, fails or end of items return 0, succesfull returns 1;
+    unsigned int i=0;
+    unsigned char counter=0,x=0;
+    
+    while(1){
+        if(counter==itemNo){
+            break;        
+        }
+        while(1){
+            if(list[i]==','){                
+                i++;
+                counter ++;
+                break;
+            }
+            if(list[i]==0x00){
+                return 0;
+            }
+            i++;
+        }
+    }
+    while(1){
+        name[x]=list[i];
+        i++;
+        x++;
+        if(list[i]==','){
+            name[x]=0x00;
+            return 1;
+        }
+        if(x>7){
+            return 0;
+        }    
+    }                
+}
+
+/************************************************************************************************/
+/************************************************************************************************/
+//This function gets the existing folders and songs on the microSD root, and displays them
+void getData(){
+  unsigned char x;
+  char name[9]={0}; 
+  
+  wait_ms(50);
+  sWav.getFolderList(dirList); 
+  wait_ms(50);
+  sWav.getFileList(playList);
+  audioItems=getListItems(playList);
+  dirItems=getListItems(dirList);
+  
+  if(dirItems>8){  //Show up to 8 Folders/Dirs
+    dirItems=8;  
+  }
+
+  if(audioItems>8){  //Show up to 8 audio Items
+    audioItems=8;  
+  }
+  //display the folder items  
+  for(x=0;x<dirItems;x++){
+    getListNameItem(dirList,x,name);
+    lcd.string(15,70+(x*20),319,239,YELLOW,FONT3,UNFILL,name);    
+  }
+  //display the audio items
+  for(x=0;x<audioItems;x++){
+    getListNameItem(playList,x,name);
+    lcd.string(170,70+(x*20),319,239,YELLOW,FONT3,UNFILL,name);    
+  }
+  //get true total items
+  audioItems=getListItems(playList);
+  totalAudioItems=audioItems;
+  dirItems=getListItems(dirList);  
+}
+
+/************************************************************************************************/
+/************************************************************************************************/
+//This function search for a song and play it, also displays the song artwork.
+void searchSong(){
+  char name[9]={0};
+  
+  if(songPointer>=totalAudioItems){//if we reached the end of items
+    songPointer=0;  
+  }
+  while(1){
+    getListNameItem(playList,songPointer,name); //get a song file name
+    if(sWav.playTrackName(name)=='O'){
+      lcd.imageSD(80,25,name);
+      lcd.drawRectangle(10,8,75,22,0x0926,FILL);       //erase previous song name
+      lcd.string(10,8,319,239,WHITE,FONT3,FILL,name);  //draw song name
+      lcd.string(265,8,319,239,WHITE,FONT2,FILL,"00:00"); //draw the times
+      lcd.drawLine(0,204,319,204,BLACK);          //draw progress line                     
+      lcd.imageSD(146,208,"pause");        
+      minutes=0;
+      seconds=0; 
+      progress=0;
+      songPointer++;                                     //increase song pointer
+      break;
+    }else{
+      songPointer++;                                     //increase song pointer
+      wait_ms(100);      
+    }
+  }
+}
+
+/**************************************************/
+/****************** MAIN LOOP *********************/
+/**************************************************/
+/**************************************************/
+/***************************************************/
+int main() { 
+  unsigned int tick=0;   //counter to advance seconds
+  
+  //Those two functions must always be called for SMARTGPU support
+  lcd.reset();  //configure the serial and pinout of arduino board for SMARTGPU support
+  lcd.start(); //initialize the SMARTGPU processor
+  //Those two functions must always be called for SMARTWAV support
+  sWav.reset(); //perform an initial reset
+  sWav.init(); //initialize the SMARTWAV processor
+     
+  lcd.baudChange(2000000);         //set high baud for advanced applications
+  
+  //load main playlist 
+  lcd.imageSD(0,0,"List");    
+  lcd.string(5,5,239,239,GREEN,FONT3,UNFILL,"Library Play List:");
+  lcd.string(5,40,239,239,GREEN,FONT3,UNFILL,"Folders/Dirs:");    
+  lcd.string(160,40,319,239,GREEN,FONT3,UNFILL,"Songs/Audio Files:");  
+  getData();  //get folders and songs and display them
+  
+  //wait_ms for a touch on screen to start playing songs
+  while(lcd.touchScreen(touch)==0);      
+  lcd.imageSD(0,0,"player");
+  lcd.drawLine(230,222,271,222,YELLOW);
+  lcd.imageSD(266,217,"ball");
+  lcd.setTextBackground(0x0926);
+  
+  while(1){
+    // search for a song and play it + show artwork
+    searchSong();
+    
+    while(1){
+      //wait_ms for a touch on screen to perform something
+      while(lcd.touchScreen(touch)==0 | touch[YCOORD]<200){
+        tick++;  
+        if(tick > 500){   //if about 1 second have passed- this isn't accurate, the best way to achieve 1 second is by timesr interrupts
+          tick=0;              //reset counter
+          seconds++;
+          progress++;
+          if(seconds>59){
+            minutes++;  
+            seconds=0;            
+          }
+          times[0]=(minutes/10)+0x30;  //get the tens of the minutes and convert them to ascii
+          times[1]=(minutes%10)+0x30;  //get the ones of the minutes and convert them to ascii
+          times[2]=':';
+          times[3]=(seconds/10)+0x30;  //get the tens of the seconds and convert them to ascii
+          times[4]=(seconds%10)+0x30;  //get the ones of the seconds and convert them to ascii
+          lcd.string(265,8,319,239,WHITE,FONT2,FILL,times); //draw the time
+          lcd.drawLine(0,204,progress,204,YELLOW);          //draw progress line        
+
+          if(sWav.getStatus()!=0x01){ //if no song is being played-means end of song
+            wait_ms(500);     
+            sWav.stopTrack();
+            wait_ms(500);              
+            searchSong();         //play next songpointer song
+          }
+        }
+      } 
+
+      //decode touch into buttons
+      if(touch[XCOORD]>90 & touch[XCOORD]<117){//touch on STOP button
+        sWav.stopTrack();
+        lcd.imageSD(146,208,"play");
+        lcd.string(265,8,319,239,WHITE,FONT2,FILL,"00:00"); //draw the times   
+        lcd.drawLine(0,204,319,204,BLACK);          //draw progress line              
+        wait_ms(1000);
+        //wait_ms for a touch on play button to resume song play-back
+        while(lcd.touchScreen(touch)==0 | !(touch[XCOORD]>144 & touch[XCOORD]<173)); 
+        break;        
+      }else if(touch[XCOORD]>116 & touch[XCOORD]<145){//touch on REWIND button
+        sWav.rewindTrack();  
+        lcd.string(265,8,319,239,WHITE,FONT2,FILL,"00:00"); //draw the times
+        lcd.drawLine(0,204,319,204,BLACK);          //draw progress line                               
+        minutes=0;
+        seconds=0;
+        progress=0;        
+      }else if(touch[XCOORD]>144 & touch[XCOORD]<173){//touch on PAUSE/PLAY button
+        sWav.pausePlay();
+        lcd.imageSD(146,208,"play");
+        wait_ms(1000);
+        //wait_ms for a touch on pausePlay button to resume song play-back
+        while(lcd.touchScreen(touch)==0 | !(touch[XCOORD]>144 & touch[XCOORD]<173));
+        sWav.pausePlay();
+        lcd.imageSD(146,208,"pause");         
+      }else if(touch[XCOORD]>172 & touch[XCOORD]<202){//touch on NEXT button
+        sWav.stopTrack();
+        wait_ms(200);
+        break;
+      }else if(touch[XCOORD]>229 & touch[XCOORD]<272){//touch on VOLUME
+        lcd.drawLine(touch[XCOORD],222,271,222,BLACK);
+        lcd.drawLine(230,222,touch[XCOORD],222,YELLOW);
+        lcd.imageSD(touch[XCOORD]-4,217,"ball");
+        sWav.volume(214+ (touch[XCOORD]-230)); 
+      }
+      wait_ms(200);  
+   }
+  } 
+}  
+  
+  
+      
+