Nathan Ewin / Mbed 2 deprecated LogData_UM6-to-SDcard

A project similar to http://mbed.org/users/lhiggs/code/UM6_IMU_AHRS_2012/, where I'm trying to log data from a UM6 (CH Robotics orientation sensor) and a GPS transceiver to an sd card. I've adapted LHiggs code to include ModGPS. For sum reason a soon as I pick up a gps signal the UM6 data freezes i.e. the time and gps signals continue to print out but the UM6 signals fixes on a single value.

Dependencies:   MODGPS MODSERIAL SDFileSystem mbed

main.cpp

Committer:
njewin
Date:
2013-05-23
Revision:
1:9fe40d9ac0f5
Parent:
0:52295643d083
Child:
2:4a6e89c2d82a

File content as of revision 1:9fe40d9ac0f5:

#include "mbed.h"

//------------ system and interface setup ----------------------------//
LocalFileSystem local("local");  // sets up local file on mbed
Serial pc(USBTX, USBRX);  // sets up serial connection to pc terminal

//------------ Hardware setup ----------------------------------------//
DigitalOut myled(LED1);   // debug LED
DigitalIn enable(p10);    // enable signal for logging data to file

//------------ interrupt and variable setup --------------------------//
Ticker tick;
int counter=0;
int flag=0;

//------------ LogData interrupt function ----------------------------//
void LogData() {
            counter++;
            flag=1;
} 

//============= Main Program =========================================//
int main() {
    pc.baud(115200);  // baud rate to pc interface
    tick.attach(&LogData, 0.001); // attaches LogData function to 'tick' ticker interrupt every 0.5s

    while(1) {
        while(enable) {
            if(flag==1) {  // prints counter value every interrupt raises flag
                myled=1;
                pc.printf("%2d \n",counter);
                flag=0;
            }    // end if(flag=1) loop
        }       // end while(enable) loop
    myled=0; // turns off LED when enable switch off
    counter=0; // resets counter
  } // end while(1) loop
} // end main() loop