Diff: main.cpp

Revision:

11:61883be906e2

Parent:

10:6be424b58abe

diff -r 6be424b58abe -r 61883be906e2 main.cpp
--- a/main.cpp	Sat Nov 24 01:23:03 2012 +0000
+++ b/main.cpp	Fri Nov 30 11:06:48 2012 +0000
@@ -1,5 +1,5 @@
 //  Skelton of EMG input method program using timer interrupt and thread.
-//      ver. 121123a by Kosaka lab.
+//      ver. 121130a by Kosaka lab.
 #include "mbed.h"
 #include "rtos.h"
 #define PI 3.14159265358979 // def. of PI
@@ -9,36 +9,37 @@
 #define TS      0.0001  // [s], TS, sampling time[s] to detect emg from AD.
 #define TMAX    5       // [s], experiment starts from 0[s] to TMAX[s]
 /*********** User setting for control parameters (end) ***************/
-
+ 
 Serial pc(USBTX, USBRX);        // Display on tera term in PC 
 LocalFileSystem local("local"); // save data to mbed USB disk drive in PC
 //Semaphore semaphore1(1);      // wait and release to protect memories and so on
 //Mutex stdio_mutex;            // wait and release to protect memories and so on
 Ticker timer_interrupt;         // Timer interrupt using TIMER3, TS<0.001 is OK. Priority is higher than rtosTimer.
-
+ 
 //extern "C" void mbed_reset();   // if called, mbed is resset.
-
+ 
 float _emg_data[N_COUNT];// emg raw data
 unsigned long _count=0;  // sampling number for emg detection.
 unsigned long _count2=0; // = _count/N_COUNT
-
+ 
 DigitalOut led1(LED1); // for debug
 DigitalOut led2(LED2); // for debug
-
+DigitalOut led3(LED3); // for debug
+ 
 float   _char=0;        //-------- make japanese character from emg
 FILE *fp;               // save data to PC
 unsigned char   _f_req_slow=0;      // flag requesting slow()
 unsigned char   _f_req_slowest=0;   // flag requesting slowest()
-
-
+ 
+ 
 void disp2PC(){     //-------- display japanese character to tera term on PC
     pc.printf(" d %f\r\n",_char);
 }
-
+ 
 void discriminateEMG(){  //-------- discriminate EMG to make japanese character
     int     i;
     float   x;
-
+ 
     x = 0;
     for( i=0;i<N_COUNT;i++){
         x = x + _emg_data[i];
@@ -46,19 +47,22 @@
     _char = x;  // _char = emg_data[0] + emg_data[1] + emg_data[2] + ...
     pc.printf(" s\r\n");
 }
-
-
+ 
+ 
 //---------------- from here, timer interrupt and threads ---------------
-
+ 
 void slowest(void const *argument) {    // thread priority: Low
     while(true){
         if( _f_req_slowest == 1 ){    // if slowest() is requested.
+            led3 = 1;   // check calculate time
 //          function();
             _f_req_slowest = 0;     // release to request slowest()
+            Thread::wait(100);
+            led3 = 0;   // check calculate time
         }
     }
 }
-
+ 
 void slow(void const *argument) {    // thread priority: below normal
     while(true){
         if( _f_req_slow == 1 ){    // if slow() is requested.
@@ -69,9 +73,10 @@
             _f_req_slowest = 1; // request slowest()
             led2 = 0;   // check calculate time
         }
+        Thread::wait(1);    // wait 1ms to give time with slowest()
     }
 }
-
+ 
 void fastest() {                    // ticker using TIMER3 interrupt
     led1 = 1;   // check calculate time
 //    if( led1==0 ){  led1=1;}else{           led1=0;}// for debug
@@ -84,11 +89,11 @@
     }
     led1 = 0;   // check calculate time
 }
-
+ 
 int main() {
     Thread threadSlow(slow,NULL,osPriorityBelowNormal); // call thread slow()
     Thread threadSlowest(slowest,NULL,osPriorityLow);   // call thread slowest()
-
+ 
     pc.printf("Start!!\r\n");
 //    if ( NULL == (fp = fopen( "/local/data.csv", "w" )) ){   error( "" );} // open mbed USB drive
     timer_interrupt.attach(&fastest, TS );  // start timer interrupt: call fastest() on each TS[s].
@@ -109,3 +114,5 @@
 //  osPriorityHigh          = +2,          ///< priority: high 
 //  osPriorityRealtime      = +3,          ///< priority: realtime (highest)
 //  osPriorityError         =  0x84        ///< system cannot determine priority or thread has illegal priority
+ 
+