main.cpp

00001 #include "sample_hardware.hpp"
00002 #include "Networkbits.hpp"
00003 
00004 // This is a very short demo that demonstrates all the hardware used in the coursework.
00005 // You will need a network connection set up (covered elsewhere). The host PC should have the address 10.0.0.1
00006 
00007 //Threads
00008 Thread nwrkThread;
00009  
00010 
00011 int main() {
00012     //Greeting
00013     printf("Testing\n\n");    
00014     
00015     //Power on self test
00016     post();
00017     
00018     //Initialise the SD card (this needs to move)
00019     if ( sd.init() != 0) {
00020         printf("Init failed \n");
00021         lcd.cls();
00022         lcd.printf("CANNOT INIT SD");        
00023         errorCode(FATAL);
00024     } 
00025     
00026     //Create a filing system for SD Card
00027     FATFileSystem fs("sd", &sd);     
00028 
00029     //Open to WRITE
00030     FILE* fp = fopen("/sd/test.csv","a");
00031     if (fp == NULL) {
00032         error("Could not open file for write\n");
00033         lcd.cls();
00034         lcd.printf("CANNOT OPEN FILE\n\n");
00035         errorCode(FATAL);
00036     }
00037     
00038     //Last message before sampling begins
00039     lcd.cls();
00040     lcd.printf("READY\n\n");
00041         
00042         
00043     //Press either switch to unmount
00044     while ((SW1 == 0) && (SW2 == 0)) {
00045         
00046         //Base loop delay
00047         wait(1.0);
00048         
00049         //Read environmental sensors
00050         double temp = sensor.getTemperature();
00051         double pressure = sensor.getPressure();
00052         
00053         //Write new data to LCD (not fast!)
00054         lcd.cls();
00055         lcd.printf("Temp   Pressure\n"); 
00056         lcd.printf("%6.1f ",temp);
00057         lcd.printf("%.2f\n",pressure);
00058         
00059         //Write to SD (potentially slow)
00060         fprintf(fp, "%6.1f,%.2f\n\r", temp, pressure);
00061     }
00062     
00063     //Close File
00064     fclose(fp);
00065     
00066     //Close down
00067     sd.deinit();
00068     printf("Unmounted...\n");
00069     lcd.cls();
00070     lcd.printf("Unmounted...\n\n");
00071     
00072     //Flash to indicate goodness
00073     while(true) {
00074         greenLED = 1;
00075         wait(0.5);
00076         greenLED = 0;
00077         wait(0.1);    
00078     }
00079 }
00080 
00081 
00082