1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*---------------------------------------------------------------------------------------------------------------------------------------------------
* irmp-main-mbed.cpp - demo main module to test IRMP decoder on AVR
*
* $Id: irmp-main-mbed.cpp,v 1.1 2016/01/12 11:55:05 fm Exp $
*
* This demo module is runnable on MBED boards
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*---------------------------------------------------------------------------------------------------------------------------------------------------
*/
#include "mbed.h"
#include "irmp.h"
#define LED_ON 0
#define LED_OFF 1
DigitalOut led(P0_14, 1);
DigitalOut flash(P0_12, 1);
Ticker t;
// only for performance test
Timer timerPerfTest;
int timeISRMax = 0;
float timeISRAvg;
int timeISRAvgSum = 0;
int countISRCalls = 0;
void irmpISR(void)
{
int t1 = timerPerfTest.read_us();
irmp_ISR(); // call irmp ISR
int timeISR = timerPerfTest.read_us() - t1; // calc time spent in worker ISR
if (timeISR > timeISRMax) // store maximum
{
timeISRMax = timeISR;
}
timeISRAvgSum += timeISR; // sum for avg
countISRCalls++;
}
int main()
{
printf("IRMP on mbed\n");
led = LED_OFF;
timerPerfTest.start();
IRMP_DATA irmp_data;
irmp_init(); // initialize irmp
t.attach_us(&irmpISR, 1E6 / F_INTERRUPTS); // call ISR 15000/s
// infinite loop, interrupts will toggle PORTD pins and handle UART communications.
while (1)
{
flash = !flash;
if (irmp_get_data (&irmp_data))
{
// ir signal decoded, do something here...
// irmp_data.protocol is the protocol, see irmp.h
// irmp_data.address is the address/manufacturer code of ir sender
// irmp_data.command is the command code
// irm_data.flags is press/release information
// irmp_protocol_names[irmp_data.protocol] is the protocol name (if enabled, see irmpconfig.h)
// printf("proto %d addr %d cmd %d\n", irmp_data.protocol, irmp_data.address, irmp_data.command );
// sample decoding, toggle LED
if (irmp_data.protocol == IRMP_RC5_PROTOCOL && irmp_data.address == 5) // old RC5 VCR Remote. TV uses address 0
{
if (irmp_data.flags == 0) // switch only on button press
{
switch (irmp_data.command)
{
case 0: // Key '0'
led = LED_OFF;
break;
case 1: // Key '1'
led = LED_ON;
break;
case 53: // Key 'play'
printf("bring me a beer!\n");
break;
case 54: // Key 'stop'
timeISRAvg = (float)timeISRAvgSum / countISRCalls;
timeISRAvgSum = 0;
countISRCalls = 0;
printf("ISR max / avg runtime [microseconds] : %d / %5.2f\n", timeISRMax, timeISRAvg);
timeISRMax = 0;
break;
}
}
}
// log to stdout
printf("proto %d addr %d cmd %d flags %x name %s\n", irmp_data.protocol, irmp_data.address, irmp_data.command, irmp_data.flags, irmp_protocol_names[irmp_data.protocol] );
}
}
}
|
