main.cpp

00001 #include "mbed.h"
00002 extern "C" {
00003 #include "fx.h"
00004 }
00005 
00006 #include <time.h>
00007 void sleepcp(int milliseconds);
00008 
00009 void sleepcp(int milliseconds) // Cross-platform sleep function
00010 {
00011     clock_t time_end;
00012     time_end = clock() + milliseconds * CLOCKS_PER_SEC/1000;
00013     while (clock() < time_end) {
00014     }
00015 }
00016 
00017 
00018 //------------------------------------
00019 // Hyperterminal configuration
00020 // 9600 bauds, 8-bit data, no parity
00021 //------------------------------------
00022 
00023 Serial pc(SERIAL_TX, SERIAL_RX);
00024 
00025 DigitalOut myled(LED1);
00026 
00027 int main()
00028 {
00029 
00030     int Repetitions = 10000;
00031     int FxToCall = 100;
00032 
00033     float x[20];
00034     int count = 0;
00035 
00036     while(1) {
00037         pc.printf("Starting %d repetitions\r\n",Repetitions);
00038 
00039         clock_t start, end;
00040         double cpu_time_used;
00041         start = clock();
00042         count = 0;
00043 
00044         for (int r=0; r<Repetitions; r++) {
00045             for(int i=0; i<FxToCall; i++) {
00046                 count += fxList[i](x);
00047             }
00048         }
00049 
00050         end = clock();
00051         long double diff = end-start;
00052         cpu_time_used = diff / ((long double)CLOCKS_PER_SEC / 1000.0);
00053         pc.printf("Elapsed time ms: %f\r\n",cpu_time_used);
00054         pc.printf("Elapsed time (ms) x repetition: %f\r\n",cpu_time_used/Repetitions);
00055 
00056 
00057     }
00058 }