Team S - EDP 2 / Mbed 2 deprecated signal_processing

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Dependencies:   mbed

main.cpp@0:005922ecb765, 2018-02-14 (annotated)

Committer:
2236693B
Date:
Wed Feb 14 10:05:03 2018 +0000
Revision:
0:005922ecb765
Child:
1:d1e89afbe50c
Start

Who changed what in which revision?

UserRevisionLine numberNew contents of line
2236693B 0:005922ecb765 1 Rango says, hey there Conor!
2236693B 0:005922ecb765 2
2236693B 0:005922ecb765 3 #include "mbed.h"
2236693B 0:005922ecb765 4
2236693B 0:005922ecb765 5 DigitalOut myled(LED1);
2236693B 0:005922ecb765 6 AnalogIn Ain(PTB1);
2236693B 0:005922ecb765 7
2236693B 0:005922ecb765 8 int const MAX_B = 20;
2236693B 0:005922ecb765 9 int const delta = 0.5;
2236693B 0:005922ecb765 10 int sample_buffer[MAX_B] = {};
2236693B 0:005922ecb765 11 int local_buffer[MAX_B] = {};
2236693B 0:005922ecb765 12 int read = 0;
2236693B 0:005922ecb765 13 int write = 0;
2236693B 0:005922ecb765 14 int sum = 0;
2236693B 0:005922ecb765 15 int prev
2236693B 0:005922ecb765 16
2236693B 0:005922ecb765 17 Ticker sampler;
2236693B 0:005922ecb765 18 Timer t;
2236693B 0:005922ecb765 19
2236693B 0:005922ecb765 20 void sampling() {
2236693B 0:005922ecb765 21 unsigned int sample = Ain.read_u16();
2236693B 0:005922ecb765 22 sample_buffer[write++]=sample;
2236693B 0:005922ecb765 23
2236693B 0:005922ecb765 24 write = write%MAX_B;
2236693B 0:005922ecb765 25 }
2236693B 0:005922ecb765 26
2236693B 0:005922ecb765 27 int get_trend(int current) {
2236693B 0:005922ecb765 28 int trend;
2236693B 0:005922ecb765 29
2236693B 0:005922ecb765 30 return trend;
2236693B 0:005922ecb765 31 }
2236693B 0:005922ecb765 32
2236693B 0:005922ecb765 33 void data_process() {
2236693B 0:005922ecb765 34 int trend = get_trend();
2236693B 0:005922ecb765 35 int range = max(data)-min(data);
2236693B 0:005922ecb765 36 }
2236693B 0:005922ecb765 37
2236693B 0:005922ecb765 38 int filter (int x, int y) {
2236693B 0:005922ecb765 39 return delta*(x)+ (1-delta)*y;
2236693B 0:005922ecb765 40 }
2236693B 0:005922ecb765 41
2236693B 0:005922ecb765 42
2236693B 0:005922ecb765 43 int main() {
2236693B 0:005922ecb765 44 sampler.attach(&sampling, 0.0125); //Sample at 80Hz
2236693B 0:005922ecb765 45 //t.start();
2236693B 0:005922ecb765 46 //t.wait(0.1);
2236693B 0:005922ecb765 47
2236693B 0:005922ecb765 48 while(1) {
2236693B 0:005922ecb765 49 //t.reset();
2236693B 0:005922ecb765 50 //start = t.read();
2236693B 0:005922ecb765 51 if (write-read > MAX_B/2 || read-write > MAX_B/2) { // |write-read| > MAX_B/2
2236693B 0:005922ecb765 52 for(int i = 0; i < MAX_B/2; i++) {
2236693B 0:005922ecb765 53 local_buffer[i] = sample_buffer[read];
2236693B 0:005922ecb765 54 read = (++read) % MAX_B;
2236693B 0:005922ecb765 55 }
2236693B 0:005922ecb765 56 }
2236693B 0:005922ecb765 57 data_process();
2236693B 0:005922ecb765 58
2236693B 0:005922ecb765 59 }
2236693B 0:005922ecb765 60 }
2236693B 0:005922ecb765 61
2236693B 0:005922ecb765 62
2236693B 0:005922ecb765 63