Junichi Katsu
/
GPSLogger
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Dependencies: ChaNFSSD FatFileSystem
Revision 0:9ca772c9b3e9, committed 2012-04-03
- Comitter:
- jksoft
- Date:
- Tue Apr 03 08:19:20 2012 +0000
- Commit message:
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ChaNFSSD.lib Tue Apr 03 08:19:20 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/NeoBelerophon/code/ChaNFSSD/#7532f4c4163c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FatFileSystem.lib Tue Apr 03 08:19:20 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/AdamGreen/code/FatFileSystem/#6ceefe1c53e4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Apr 03 08:19:20 2012 +0000
@@ -0,0 +1,107 @@
+// GPS Logger mbed LPC11U24
+
+#include "mbed.h"
+#include "SDFileSystem.h"
+
+SDFileSystem sd(p5, p6, p7, p8, "fs");
+
+Serial gps(p9, p10);
+Serial pc(USBTX, USBRX);
+
+InterruptIn pps(p14);
+
+DigitalOut pps_stat(LED1);
+DigitalOut sd_access(LED2);
+DigitalOut rx_status(LED3);
+DigitalIn enable(p22);
+
+int num = 0;
+int pps_count = 0;
+
+// GPS 1pps interrupt
+void int_pps() {
+ pps_stat =! pps_stat;
+ pps_count += 1;
+}
+
+
+int main() {
+
+ char tmp;
+ char data[80];
+ int log_count = 0;
+ bool rec_flag = false;
+ int before_sw = 1;
+ FILE *fp = NULL;
+
+ enable.mode(PullUp);
+
+ pps_stat = 0;
+ sd_access = 0;
+ rx_status = 0;
+
+ pps.rise(&int_pps);
+ gps.baud(115200);
+
+
+ sd_access = 1;
+
+ while (1) {
+ int sw = enable;
+
+ if( (sw == 0) && (before_sw == 1) )
+ {
+ if( rec_flag )
+ {
+ rec_flag = false;
+ fclose(fp);
+ fp = NULL;
+ }
+ else
+ {
+ rec_flag = true;
+ fp = fopen("/fs/gps.log", "w");
+ }
+ wait(0.2);
+ }
+ before_sw = sw;
+
+ if(gps.readable()) {
+ tmp = gps.getc();
+ data[num] = tmp;
+ if( data[num] == '$' ) {
+ data[0] = '$';
+ num = 1;
+ }
+ else if( data[num-1] == '\r' && data[num] == '\n' ) {
+
+ if(rec_flag) rx_status = !rx_status;
+
+ data[num+1] = '\0';
+
+ if(memcmp(data, "$GPRMC",6) == 0) {
+
+ if(pps_count >= 5) {
+ pps_count = 0;
+
+ if( fp != NULL ) {
+ sd_access =! sd_access;
+ fprintf(fp,"%s",data);
+ }
+
+ }
+ if(rec_flag) deepsleep();
+ }
+ data[0] = '\0';
+ num = 0;
+ }
+ else {
+ num++;
+ if(num > 80)
+ {
+ num = 0;
+ }
+ }
+ }
+ }
+}