Revision 0:2470e37cc502, committed 2017-10-13

Comitter:

martinsimpson

Date:

Fri Oct 13 09:29:43 2017 +0000

Commit message:

First Commit

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LP_2KHz_Fc_40KHz_Fs_100N.h	Fri Oct 13 09:29:43 2017 +0000
@@ -0,0 +1,106 @@
+#define Fs  40000
+#define N       101
+
+float b[N]={
+-0.000000, 
+0.000055, 
+0.000138, 
+0.000242, 
+0.000357, 
+0.000462, 
+0.000533, 
+0.000543, 
+0.000468, 
+0.000290, 
+-0.000000, 
+-0.000392, 
+-0.000858, 
+-0.001353, 
+-0.001814, 
+-0.002164, 
+-0.002326, 
+-0.002228, 
+-0.001817, 
+-0.001069, 
+0.000000, 
+0.001326, 
+0.002801, 
+0.004271, 
+0.005551, 
+0.006444, 
+0.006756, 
+0.006328, 
+0.005058, 
+0.002923, 
+-0.000000, 
+-0.003531, 
+-0.007381, 
+-0.011174, 
+-0.014463, 
+-0.016769, 
+-0.017624, 
+-0.016614, 
+-0.013426, 
+-0.007888, 
+0.000000, 
+0.010052, 
+0.021894, 
+0.034978, 
+0.048621, 
+0.062048, 
+0.074450, 
+0.085050, 
+0.093166, 
+0.098262, 
+0.100000, 
+0.098262, 
+0.093166, 
+0.085050, 
+0.074450, 
+0.062048, 
+0.048621, 
+0.034978, 
+0.021894, 
+0.010052, 
+0.000000, 
+-0.007888, 
+-0.013426, 
+-0.016614, 
+-0.017624, 
+-0.016769, 
+-0.014463, 
+-0.011174, 
+-0.007381, 
+-0.003531, 
+-0.000000, 
+0.002923, 
+0.005058, 
+0.006328, 
+0.006756, 
+0.006444, 
+0.005551, 
+0.004271, 
+0.002801, 
+0.001326, 
+0.000000, 
+-0.001069, 
+-0.001817, 
+-0.002228, 
+-0.002326, 
+-0.002164, 
+-0.001814, 
+-0.001353, 
+-0.000858, 
+-0.000392, 
+-0.000000, 
+0.000290, 
+0.000468, 
+0.000543, 
+0.000533, 
+0.000462, 
+0.000357, 
+0.000242, 
+0.000138, 
+0.000055, 
+-0.000000
+};

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LP_2KHz_Fc_40KHz_Fs_37N.h	Fri Oct 13 09:29:43 2017 +0000
@@ -0,0 +1,42 @@
+#define Fs  40000
+#define N       37
+
+float b[N]={
+-0.000212, 
+-0.000639, 
+-0.001360, 
+-0.002338, 
+-0.003402, 
+-0.004224, 
+-0.004324, 
+-0.003117, 
+0.000000, 
+0.005531, 
+0.013756, 
+0.024621, 
+0.037672, 
+0.052057, 
+0.066591, 
+0.079906, 
+0.090628, 
+0.097588, 
+0.100000, 
+0.097588, 
+0.090628, 
+0.079906, 
+0.066591, 
+0.052057, 
+0.037672, 
+0.024621, 
+0.013756, 
+0.005531, 
+0.000000, 
+-0.003117, 
+-0.004324, 
+-0.004224, 
+-0.003402, 
+-0.002338, 
+-0.001360, 
+-0.000639, 
+-0.000212
+};

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LP_2KHz_Fc_6KHz_Fs_37N.h	Fri Oct 13 09:29:43 2017 +0000
@@ -0,0 +1,42 @@
+#define Fs      6000
+#define N       37
+
+float b[N]={
+-0.000000, 
+-0.000684, 
+0.001238, 
+-0.000000, 
+-0.003098, 
+0.004522, 
+-0.000000, 
+-0.008736, 
+0.011729, 
+-0.000000, 
+-0.020268, 
+0.026356, 
+-0.000000, 
+-0.045082, 
+0.060638, 
+-0.000000, 
+-0.133528, 
+0.273491, 
+0.666667, 
+0.273491, 
+-0.133528, 
+-0.000000, 
+0.060638, 
+-0.045082, 
+-0.000000, 
+0.026356, 
+-0.020268, 
+-0.000000, 
+0.011729, 
+-0.008736, 
+-0.000000, 
+0.004522, 
+-0.003098, 
+-0.000000, 
+0.001238, 
+-0.000684, 
+-0.000000
+};

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Oct 13 09:29:43 2017 +0000
@@ -0,0 +1,60 @@
+#include "mbed.h"
+
+//Just Comment out the Dataset you DO NOT wish to use and UN-Comment the one that you wish to use
+//and then 'Build' <F7> and once complete 'Load' to the STM-Discovery board <F8>
+
+#include "LP_2KHz_Fc_6KHz_Fs_37N.h"
+//#include "LP_2KHz_Fc_40KHz_Fs_37N.h"
+//#include "LP_2KHz_Fc_40KHz_Fs_100N.h"
+
+#define ON      1
+#define OFF     0
+
+float x[N]={0};
+float yn;
+
+void sampler(void);                     //Ticker routine PROTOTYPE
+
+//MBED Class Instances follows
+DigitalOut SampLED(LED1);               //Digital Output  (GREEN LED is PB_3, D13 You can use an Oscilloscope on This pin to confirm sample rate)
+
+AnalogIn  Ain(PA_1);                    //Analog Input (Signal Input 0 to +3 Volts)
+AnalogOut Aout(PA_4);                   //Analog Output (Signal Input 0 to +3 Volts) NB PA_4 because Arduin Nano Compatability
+                                        //on STM32F303k8 uses I2C PA_5 to PB7
+
+Ticker sample_timer;                    //Ticker class instance called sample_timer
+
+PwmOut test(PWM_OUT);
+
+
+int main() {
+    float duty=0.1f;
+    test.period_ms(1);
+    test=duty;
+  
+    float sample_rate=(1.0/Fs)*1000000.0; //Calculate the number of uS required for a Frequency Sampling Rate
+                                          //Fs held in *.h
+  
+    sample_timer.attach_us(&sampler,(int)sample_rate);
+                                          //Ticker Instance serviced by routine at a repeat rate in microseconds
+  
+    while(1) {
+        sleep();
+    }
+}
+
+void sampler(void){                     //Ticker routine
+    
+    SampLED = ON;                       //LED Indicates start of sampling
+    int i;                              //Initialise local variable i
+    x[0]=Ain;                           //Input ADC. N.B. ADC in MBED is 0.0 to 1.0 float!!!!!!
+    yn=0.0;                             //output accumulation, start as zero
+    
+    for(i=0; i<N; i++) yn+=x[i]*b[i];   //generate output from filter components FIR a=0
+    for(i=N-1; i!=0; i--) x[i]=x[i-1];  //shift data
+    
+    Aout=yn;                            //Output resultant to DAC. Again MBED uses 0.0 to 1.0 float!!!!!!
+    
+    SampLED = OFF;                      //LED Indicates end of sampling
+    }
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Oct 13 09:29:43 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/b484a57bc302
\ No newline at end of file