Diff: main.cpp

Revision:

0:011aabf9f436

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Sep 03 17:10:24 2011 +0000
@@ -0,0 +1,108 @@
+//////////////////////////////////////
+// White Wizard Board (PAT.PEND)    //
+// Send IR data from microSD card.  //
+//                                  //
+// Nest Egg Inc. 2011/7/9           //
+//                                  //
+//////////////////////////////////////
+#include "mbed.h"
+#include "SDFileSystem.h"
+
+//#define SDch        0x05
+#define MAXdatanum  1000
+#define TimeLimit   3000
+#define pul38khz       26
+#define pul38k_ON      13
+#define pul38k_OFF     26
+
+//for ifdef
+//#define TEST 1
+//#define SEND 1
+//#define SAVE 1
+
+//prototype
+void send_pulse(int, int);
+
+SDFileSystem sd(p5, p6, p7, p8, "sd");
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+DigitalOut myled4(LED4);
+
+PwmOut Pulse_pin(p25);
+
+int trigger = 0;
+int saved = 0;
+
+int main(){
+    int     IRdata[MAXdatanum];
+    int     pulsetime[MAXdatanum];
+    int     j = 0;
+    int     datanum = 0;
+    
+    myled1 = 0;
+    myled2 = 0;
+    myled3 = 0;
+    myled4 = 0;
+    
+    myled1 = 1;
+    
+    //sd.SetCh(SDch);    //channel No 0101(=0x05), depend on your SPI module setting. (1:High 0:Low)
+    printf("again\n");
+    int pHL = 0;    
+    int t = 0; 
+    FILE *fp1 = fopen("/sd/IRdata.csv", "r");
+    //FILE *fp1 = fopen("/sd/off.csv", "r");
+    
+    datanum = 0;
+    
+    fscanf(fp1, "%d\n",&datanum);    //read from SD
+    printf("datanum, %d\n",datanum);
+    myled2 = 1;
+    
+    Pulse_pin.period_us(pul38khz);
+    
+    j=0;
+    for(j=0;j<datanum;++j){
+         fscanf(fp1, "%d,%d,\n",&pHL, &t);
+         //printf("%d : %d,%d,\n",j,pHL, t);
+         IRdata[j] = pHL;
+         pulsetime[j] = t;
+    }
+    
+    myled3 = 1;
+    
+    for(j=0;j<datanum;++j){
+        send_pulse(IRdata[j],pulsetime[j]);
+    }
+    
+    Pulse_pin.pulsewidth(pul38k_OFF);
+    fclose(fp1);
+    myled4 = 1;
+    printf("close fp1\n");    
+}
+
+
+void send_pulse(int pHL, int t){
+
+    int k = 0;
+    
+    if(pHL == 0){
+        //38kHz pulse on
+        Pulse_pin.pulsewidth_us(pul38k_ON);
+        
+    }else if(pHL == 1){
+        //38kHz pulse off
+        Pulse_pin.pulsewidth(pul38k_OFF);
+        
+    }else{
+        Pulse_pin.pulsewidth(pul38k_OFF);
+        printf("\n\n-----Data format is incorrect!!-----\n pHL = %d, t = %d \n", pHL, t);
+        
+    }
+        for(k = 0; k < t; ++k){
+            wait_us(50);
+        }
+}
+