Tick Tock
.
Dependencies: SDHCFileSystem mbed
Diff: main.cpp
- Revision:
- 22:605c2f33b340
- Parent:
- 21:a45a999d6da3
- Child:
- 23:7e6a9684f647
--- a/main.cpp Mon Dec 24 05:24:25 2012 +0000
+++ b/main.cpp Sun Jan 27 20:14:11 2013 +0000
@@ -111,7 +111,7 @@
char writeBuffer[maxBufLen][13];
char c;
volatile int writePointer = 0;
-volatile int secsIdle = canTimeout;
+volatile int secsIdle = 0;
volatile bool canIdle = false;
Serial pc(USBTX, USBRX);
@@ -171,17 +171,19 @@
void logCan (char mtype, CANMessage canRXmsg) {
unsigned short ts = getTimeStamp();
unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
- writeBuffer[writePointer][0]=mtype;
- writeBuffer[writePointer][1]=((secs%60)<<2)+((ts&0x300)>>8);
- writeBuffer[writePointer][2]=ts&0xff;
- writeBuffer[writePointer][3]=canRXmsg.id&0xff;
- writeBuffer[writePointer][4]=(canRXmsg.id>>8)+(canRXmsg.len<<4);
- for (int i = 5; i<13; i++){
- writeBuffer[writePointer][i]=canRXmsg.data[i-5];
- }
- if (++writePointer >= maxBufLen) {
- writePointer = 0;
- led4 = !led4;
+ if(canRXmsg.id>0) {
+ writeBuffer[writePointer][0]=mtype;
+ writeBuffer[writePointer][1]=((secs%60)<<2)+((ts&0x300)>>8);
+ writeBuffer[writePointer][2]=ts&0xff;
+ writeBuffer[writePointer][3]=canRXmsg.id&0xff;
+ writeBuffer[writePointer][4]=(canRXmsg.id>>8)+(canRXmsg.len<<4);
+ for (int i = 5; i<13; i++){
+ writeBuffer[writePointer][i]=canRXmsg.data[i-5];
+ }
+ if (++writePointer >= maxBufLen) {
+ writePointer = 0;
+ led4 = !led4;
+ }
}
}
@@ -205,7 +207,7 @@
secsIdle=0; // reset deadman switch
can1.read(msg1);
if(logOpen)
- logCan(1, msg1);
+ logCan(2, msg1);
led1 = !led1;
}
@@ -214,7 +216,7 @@
secsIdle=0; // reset deadman switch
can2.read(msg2);
if(logOpen)
- logCan(2, msg2);
+ logCan(1, msg2);
led2 = !led2;
}
@@ -225,6 +227,7 @@
int ftime;
char sTemp[35];
unsigned long secs;
+ bool bit = false;
pc.baud(460800); // change serial interface to pc to 450800, 8N1
can1.frequency(500000);
can2.frequency(500000);
@@ -284,19 +287,11 @@
strftime(sTemp, 32, "%a %m/%d/%Y %X", localtime(&seconds));
pc.printf("%s\n", sTemp); // DAY MM/DD/YYYY HH:MM:SS
}
- /*if (t.tm_year < 10) {//for test - delete
- t.tm_year = 2012-1900;//delete
- set_time(mktime(&t));//delete
- seconds = time(NULL);//delete
- }
- t.tm_mon=(t.tm_mon+1)%12; //for test - delete
- t.tm_mday=(t.tm_mday+1)%30; //for test - delete
- set_time(mktime(&t));//delete
- seconds = time(NULL);//delete*/
while (true) {
if(CD == 1) {
if (!logOpen) { // Open new file if one is not already open
+ seconds = time(NULL);
t = *localtime(&seconds) ;
strftime(fileName, 32, "/sd/%m%d%H%M.alc", &t); //mmddhhmm.alc
@@ -340,34 +335,43 @@
} // if > 1/2 full, canbus has stopped, or PB1 pressed
if (canIdle) { // canbus idle --> sleep to save power
// First take advantage of the idle time to clear some room
- // Delete all files more than 1 month old
+
+ bit = false;
rfile = fopen("/sd/loglog.txt", "r");
file = fopen("/sd/loglog.new", "w");
while (!feof(rfile)) {
fscanf(rfile,"/sd/%2d%2d%4d.alc\r\n",&fmon,&fday,&ftime);
- if ((fmon<t.tm_mon)&&(fday<=t.tm_mday)){
+ //if ((fmon<t.tm_mon)&&(fday<=t.tm_mday)){ // Delete all files more than 1 month old
+ if ((fmon < 12) || (t.tm_mon > 1)){
+ fday = fday + fmon*31; //crude - february will store 3 extra days of data
+ }
+ if ((fday+14)<(t.tm_mday+t.tm_mon*31)){ // Delete all files more than ~14 days old
+ bit=true;
sprintf(sTemp,"/sd/%02d%02d%04d.alc",fmon,fday,ftime);
- if ((remove(sTemp)==NULL))
+ if ((remove(sTemp)==NULL)) {
pc.printf("Removed file %s\n",sTemp);
+ }
}else{
fprintf(file,"/sd/%02d%02d%04d.alc\r\n",fmon,fday,ftime);
}
}
-
fclose (file);
fclose (rfile);
- remove ("/sd/loglog.txt");
- //rename not working so do it the hard way
- //rename ("/sd/loglog.new","/sd/loglog.txt");
- rfile = fopen("/sd/loglog.new", "r");
- file = fopen("/sd/loglog.txt", "w");
- while (!feof(rfile)) {
- fscanf(rfile,"%s\r\n",&sTemp);
- fprintf(file,"%s\r\n",sTemp);
+ if (bit) {
+ remove ("/sd/loglog.txt");
+ //rename not working so do it the hard way
+ //rename ("/sd/loglog.new","/sd/loglog.txt");
+ rfile = fopen("/sd/loglog.new", "r");
+ file = fopen("/sd/loglog.txt", "w");
+ while (!feof(rfile)) {
+ fscanf(rfile,"%s\r\n",&sTemp);
+ fprintf(file,"%s\r\n",sTemp);
+ }
+ fclose (file);
+ fclose (rfile);
}
- fclose (file);
- fclose (rfile);
- remove ("/sd/loglog.new");
+ remove ("/sd/loglog.new");
+ wait(5); // wait a few seconds to ensure SDRAM is done
pc.printf("Putting uC to sleep.\n");
//LPC_RTC->CIIR=0x00; // block RTC interrupts
@@ -376,9 +380,12 @@
led3=0;
led4=0;
secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
- while (secsIdle>canTimeout)
+ while (secsIdle>canTimeout) {
//DeepPowerDown();
__wfi(); // freeze CPU and wait for interrupt (from canbus)
+ }
+ canIdle=false;
+ pc.printf("Waking uC.\n");
if (time(NULL)>(secs+1800)) {
logOpen = false; // Start new file if asleep for more than 30 minutes
} else { // insert timestamp on each wake