Tu Hoang / Mbed 2 deprecated Nucleo-Heart-Rate

working wavelet transform

Dependencies:   CMSIS_DSP_5 include mbed

Fork of Nucleo-Heart-Rate by BAP TUDelft

main.cpp@9:854f2d4eda4a, 2018-06-20 (annotated)

Committer:
MockyBirdTwo
Date:
Wed Jun 20 11:46:25 2018 +0000
Revision:
9:854f2d4eda4a
Parent:
7:b32f235c15f7
Parent:
6:ce7f5faea04a
Child:
10:f62efa525bb6
imodwt;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xorjoep 0:f39864a2bd26 1 #include "arm_common_tables.h"
xorjoep 0:f39864a2bd26 2 #include "arm_const_structs.h"
xorjoep 0:f39864a2bd26 3 #include "arm_math.h"
xorjoep 0:f39864a2bd26 4 #include "mbed.h"
xorjoep 2:3d6a6b9afee0 5 #include "vals.h"
xorjoep 0:f39864a2bd26 6 #include "../header/wavelib.h"
xorjoep 0:f39864a2bd26 7
xorjoep 0:f39864a2bd26 8 DigitalOut myled(LED1);
xorjoep 4:8bd1cecf2a2e 9 DigitalOut myled2(LED2);
xorjoep 0:f39864a2bd26 10
xorjoep 4:8bd1cecf2a2e 11 Serial usb_serial(SERIAL_TX, SERIAL_RX); // tx, rx
xorjoep 4:8bd1cecf2a2e 12 const int baud_rate = 115200; // Baud rate.
xorjoep 0:f39864a2bd26 13
xorjoep 0:f39864a2bd26 14 int main() {
xorjoep 4:8bd1cecf2a2e 15 usb_serial.baud(baud_rate);
xorjoep 4:8bd1cecf2a2e 16 // Set serial USB connection baud rate (variable is declared in config part).
xorjoep 4:8bd1cecf2a2e 17 wave_object wave_init_obj;
xorjoep 4:8bd1cecf2a2e 18 wt_object wavelet;
xorjoep 4:8bd1cecf2a2e 19
xorjoep 5:182ee08ee2b0 20 int N_samples = 3000;
xorjoep 4:8bd1cecf2a2e 21 int wt_scale = 3;
MockyBirdTwo 9:854f2d4eda4a 22 // int fs = 160;
MockyBirdTwo 6:ce7f5faea04a 23 int i,j;
xorjoep 0:f39864a2bd26 24
xorjoep 4:8bd1cecf2a2e 25 double *inp = signal_in; //,*out,*diff;
MockyBirdTwo 9:854f2d4eda4a 26 double *out;
xorjoep 0:f39864a2bd26 27
xorjoep 4:8bd1cecf2a2e 28 char *m_wavelet = "db4";
xorjoep 4:8bd1cecf2a2e 29 wave_init_obj = wave_init(m_wavelet);// Initialize the wavelet
xorjoep 0:f39864a2bd26 30
xorjoep 4:8bd1cecf2a2e 31 wavelet = wt_init(wave_init_obj, "modwt", N_samples, wt_scale);// Initialize the wavelet transform object
xorjoep 0:f39864a2bd26 32
MockyBirdTwo 6:ce7f5faea04a 33 int wt_scale_start=((wavelet->outlength)/wt_scale)*1;
MockyBirdTwo 6:ce7f5faea04a 34 int wt_scale_end=((wavelet->outlength)/wt_scale)*2;
xorjoep 4:8bd1cecf2a2e 35 modwt(wavelet, inp);// Perform MODW
MockyBirdTwo 6:ce7f5faea04a 36
MockyBirdTwo 6:ce7f5faea04a 37 //Choose scales
MockyBirdTwo 6:ce7f5faea04a 38 for (i=0,j=wt_scale_start;j<wt_scale_end;i++,j++) {
MockyBirdTwo 9:854f2d4eda4a 39 wavelet[i]=wavelet[j];
MockyBirdTwo 9:854f2d4eda4a 40 // wavelet.resize(6000);
MockyBirdTwo 6:ce7f5faea04a 41 }
MockyBirdTwo 9:854f2d4eda4a 42 imodwt(wavelet,out);// Perform IMODWT
xorjoep 0:f39864a2bd26 43
xorjoep 0:f39864a2bd26 44 while(1){
xorjoep 4:8bd1cecf2a2e 45 for (i = 0; i < wavelet->outlength; ++i) {
xorjoep 4:8bd1cecf2a2e 46 usb_serial.printf("%d %e \n",i, wavelet->output[i]);
xorjoep 0:f39864a2bd26 47 }
xorjoep 0:f39864a2bd26 48 myled = !myled;
xorjoep 0:f39864a2bd26 49 }
xorjoep 0:f39864a2bd26 50 }