yoshinari kou
Save IR data
Diff: main.cpp
- Revision:
- 0:decd8d14cc06
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Aug 31 15:50:30 2011 +0000
@@ -0,0 +1,280 @@
+//////////////////////////////////////
+// White Wizard Board (PAT.PEND) //
+// Save IR data to 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 0.0263
+#define pul38k_ON 0.0131
+#define pul38k_OFF 0.0
+//#define TEST 1
+
+//prototype
+void SDsave(int[], int[], int);
+void send_pulse(int, int);
+
+SDFileSystem sd(p5, p6, p7, p8, "sd");
+
+//DigitalIn IR(p9);
+
+InterruptIn IR(p9);
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+DigitalOut myled4(LED4);
+
+PwmOut Pulse_pin(p21);
+
+int trigger = 0;
+int saved = 0;
+int datanum = 0;
+int i = 0;
+int IRdata[MAXdatanum];
+int pulsetime[MAXdatanum];
+
+
+void triggerOn() {
+ trigger = 1;
+ IRdata[i] = 0;
+ pulsetime[i]=0;
+
+ if(i < MAXdatanum){
+ while(IR==0 && pulsetime[i]<=15000){
+ ++pulsetime[i];
+ wait_us(50);
+
+ }
+
+ if(pulsetime[i]>=15000){
+ printf(" pulsetime[i] >= TimeLimit !\n");
+ datanum = i;
+ i = MAXdatanum;
+ }
+
+ ++i;
+ }
+}
+
+
+void triggerOff() {
+ trigger = 0;
+ pulsetime[i]=0;
+ IRdata[i] = 1;
+
+ if(i < MAXdatanum){
+ while(IR==1 && pulsetime[i]<=15000){
+ ++pulsetime[i];
+ wait_us(50);
+
+ }
+
+ if(pulsetime[i]>=15000){
+ printf(" pulsetime[i] >= TimeLimit !\n");
+ datanum = i;
+ i = MAXdatanum;
+ }
+
+ ++i;
+ }
+}
+
+
+int main(){
+ //Buffer is 100 pulses.
+ //int IRdata[MAXdatanum];
+ //int pulsetime[MAXdatanum];
+ //int i = 0;
+
+ myled1 = 0;
+ myled2 = 0;
+ myled3 = 0;
+ myled4 = 0;
+
+ myled1 = 1;
+
+ IR.fall(&triggerOn);
+ IR.rise(&triggerOff);
+
+ printf("start!\n");
+
+ while(1){
+ IR.fall(&triggerOn);
+ IR.rise(&triggerOff);
+
+ if(i >= MAXdatanum && i!= (MAXdatanum + 100)){
+ printf("Save start!\n");
+ SDsave(IRdata, pulsetime,datanum);
+ i = MAXdatanum + 100;
+ printf("Finish!");
+ }
+ }
+#ifdef TEST
+
+#else
+ while(1){
+
+ if(trigger == 0 && saved == 0){ //no signal
+ ;
+ }else if(trigger == 1 && saved == 0){ //"save" start
+ //IR.fall(NULL);
+ for(i = 0; i < MAXdatanum; ++i){
+ pulsetime[i] = 0; //init
+
+ if(IR == 1){
+ //check signal type
+ IRdata[i] = 1;
+
+ while(IR==1 && pulsetime[i]<=TimeLimit){ //while IR = 1
+ //check time
+ ++pulsetime[i];
+ wait_us(50); //count by 100 usec
+ }
+
+
+ }else{
+ //check signal type
+ IRdata[i] = 0;
+
+ while(IR==0 && pulsetime[i]<=TimeLimit){ //while IR = 0
+ //check time
+ ++pulsetime[i];
+ wait_us(50); //count by 100 usec
+
+ }
+
+ }
+
+ datanum = i;
+
+ if( pulsetime[i] >= TimeLimit){
+ printf(" pulsetime[i] >= TimeLimit !\n");
+ i = MAXdatanum;
+ }
+
+ }
+
+ SDsave(IRdata, pulsetime,datanum);
+ }else{
+ ;
+ }
+ }
+#endif
+
+#ifdef TEST
+ IRdata[0] = 1;
+ pulsetime[0] = 555;
+ IRdata[1] = 0;
+ pulsetime[1] = 777;
+ SDsave(IRdata, pulsetime,2);
+#endif
+
+ while(1){
+ }
+
+}
+
+void SDsave(int IRdata1[], int pulsetime1[], int datanum1){
+
+ int j = 0;
+
+ //channel No must be A4 A3 A2 A1
+ sd.SetCh(SDch); //channel No 0101(=0x05), depend on your SPI module setting. (1:High 0:Low)
+ wait(1);
+
+ printf("Start to save data\n");
+ myled2 = 1;
+
+ FILE *fp = fopen("/sd/IRDATA.csv", "w");
+ if(fp == NULL) {
+ error("Could not open file to write\n");
+ myled3 = 1;
+ }
+
+#ifdef TEST
+ fprintf(fp, "%d\n",datanum1);
+ fprintf(fp, "%d,%d,\n",IRdata1[0], pulsetime1[0]);
+ fprintf(fp, "%d,%d,\n",IRdata1[1], pulsetime1[1]);
+#else
+
+ fprintf(fp, "%d\n",datanum1);
+ for(j=0;j<datanum1;++j){
+ fprintf(fp, "%d,%d,\n",IRdata1[j], pulsetime1[j]);
+ }
+#endif
+
+
+ fclose(fp);
+ saved = 1;
+ printf("Saved!\n");
+
+ sd.SetCh(0x00); //not select
+
+//#ifdef TEST
+ wait(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");
+
+ datanum = 0;
+
+ fscanf(fp1, "%d\n",&datanum1); //read from SD
+ printf("datanum, %d\n",datanum1);
+
+ for(j=0;j<datanum1;++j){
+ fscanf(fp1, "%d,%d,\n", &pHL, &t); //read from SD
+
+ send_pulse(pHL,t);
+
+ //printf("ans, %d,%d,\n", pHL, t);
+ }
+
+ fclose(fp1);
+ printf("close fp1\n");
+
+//#endif
+
+ myled3 = 1;
+ myled4 = 1;
+}
+
+
+void send_pulse(int pHL, int t){
+
+ int k = 0;
+ int err = 0;
+
+ Pulse_pin.period(pul38khz);
+
+ if(pHL == 0){
+ //38kHz pulse on
+ Pulse_pin.pulsewidth(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);
+ err = 1;
+
+ }
+
+ if(err == 0){
+ for(k = 0; k < t; ++k){
+ wait_us(50);
+ }
+ }
+
+}
+