Jing Qiu / mbed

nothing changed

Fork of mbed by gokmen ascioglu

Timer.h@1:27d81db81dd7, 2015-03-03 (annotated)

Committer:
Jing_Qiu
Date:
Tue Mar 03 00:55:57 2015 +0000
Revision:
1:27d81db81dd7
Parent:
0:a8fa94490a0a 
revise

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gokmenascioglu 0:a8fa94490a0a 1 /* mbed Microcontroller Library - Timer
gokmenascioglu 0:a8fa94490a0a 2 * Copyright (c) 2007-2009 ARM Limited. All rights reserved.
gokmenascioglu 0:a8fa94490a0a 3 */
gokmenascioglu 0:a8fa94490a0a 4
gokmenascioglu 0:a8fa94490a0a 5 #ifndef MBED_TIMER_H
gokmenascioglu 0:a8fa94490a0a 6 #define MBED_TIMER_H
gokmenascioglu 0:a8fa94490a0a 7
gokmenascioglu 0:a8fa94490a0a 8 #include "platform.h"
gokmenascioglu 0:a8fa94490a0a 9 #include "PinNames.h"
gokmenascioglu 0:a8fa94490a0a 10 #include "PeripheralNames.h"
gokmenascioglu 0:a8fa94490a0a 11 #include "Base.h"
gokmenascioglu 0:a8fa94490a0a 12
gokmenascioglu 0:a8fa94490a0a 13 namespace mbed {
gokmenascioglu 0:a8fa94490a0a 14
gokmenascioglu 0:a8fa94490a0a 15 /* Class: Timer
gokmenascioglu 0:a8fa94490a0a 16 * A general purpose timer
gokmenascioglu 0:a8fa94490a0a 17 *
gokmenascioglu 0:a8fa94490a0a 18 * Example:
gokmenascioglu 0:a8fa94490a0a 19 * > // Count the time to toggle a LED
gokmenascioglu 0:a8fa94490a0a 20 * >
gokmenascioglu 0:a8fa94490a0a 21 * > #include "mbed.h"
gokmenascioglu 0:a8fa94490a0a 22 * >
gokmenascioglu 0:a8fa94490a0a 23 * > Timer timer;
gokmenascioglu 0:a8fa94490a0a 24 * > DigitalOut led(LED1);
gokmenascioglu 0:a8fa94490a0a 25 * > int begin, end;
gokmenascioglu 0:a8fa94490a0a 26 * >
gokmenascioglu 0:a8fa94490a0a 27 * > int main() {
gokmenascioglu 0:a8fa94490a0a 28 * > timer.start();
gokmenascioglu 0:a8fa94490a0a 29 * > begin = timer.read_us();
gokmenascioglu 0:a8fa94490a0a 30 * > led = !led;
gokmenascioglu 0:a8fa94490a0a 31 * > end = timer.read_us();
gokmenascioglu 0:a8fa94490a0a 32 * > printf("Toggle the led takes %d us", end - begin);
gokmenascioglu 0:a8fa94490a0a 33 * > }
gokmenascioglu 0:a8fa94490a0a 34 */
gokmenascioglu 0:a8fa94490a0a 35 class Timer : public Base {
gokmenascioglu 0:a8fa94490a0a 36
gokmenascioglu 0:a8fa94490a0a 37 public:
gokmenascioglu 0:a8fa94490a0a 38
gokmenascioglu 0:a8fa94490a0a 39 Timer(const char *name = NULL);
gokmenascioglu 0:a8fa94490a0a 40
gokmenascioglu 0:a8fa94490a0a 41 /* Function: start
gokmenascioglu 0:a8fa94490a0a 42 * Start the timer
gokmenascioglu 0:a8fa94490a0a 43 */
gokmenascioglu 0:a8fa94490a0a 44 void start();
gokmenascioglu 0:a8fa94490a0a 45
gokmenascioglu 0:a8fa94490a0a 46 /* Function: stop
gokmenascioglu 0:a8fa94490a0a 47 * Stop the timer
gokmenascioglu 0:a8fa94490a0a 48 */
gokmenascioglu 0:a8fa94490a0a 49 void stop();
gokmenascioglu 0:a8fa94490a0a 50
gokmenascioglu 0:a8fa94490a0a 51 /* Function: reset
gokmenascioglu 0:a8fa94490a0a 52 * Reset the timer to 0.
gokmenascioglu 0:a8fa94490a0a 53 *
gokmenascioglu 0:a8fa94490a0a 54 * If it was already counting, it will continue
gokmenascioglu 0:a8fa94490a0a 55 */
gokmenascioglu 0:a8fa94490a0a 56 void reset();
gokmenascioglu 0:a8fa94490a0a 57
gokmenascioglu 0:a8fa94490a0a 58 /* Function: read
gokmenascioglu 0:a8fa94490a0a 59 * Get the time passed in seconds
gokmenascioglu 0:a8fa94490a0a 60 */
gokmenascioglu 0:a8fa94490a0a 61 float read();
gokmenascioglu 0:a8fa94490a0a 62
gokmenascioglu 0:a8fa94490a0a 63 /* Function: read_ms
gokmenascioglu 0:a8fa94490a0a 64 * Get the time passed in mili-seconds
gokmenascioglu 0:a8fa94490a0a 65 */
gokmenascioglu 0:a8fa94490a0a 66 int read_ms();
gokmenascioglu 0:a8fa94490a0a 67
gokmenascioglu 0:a8fa94490a0a 68 /* Function: read_us
gokmenascioglu 0:a8fa94490a0a 69 * Get the time passed in micro-seconds
gokmenascioglu 0:a8fa94490a0a 70 */
gokmenascioglu 0:a8fa94490a0a 71 int read_us();
gokmenascioglu 0:a8fa94490a0a 72
gokmenascioglu 0:a8fa94490a0a 73 #ifdef MBED_OPERATORS
gokmenascioglu 0:a8fa94490a0a 74 operator float();
gokmenascioglu 0:a8fa94490a0a 75 #endif
gokmenascioglu 0:a8fa94490a0a 76
gokmenascioglu 0:a8fa94490a0a 77 #ifdef MBED_RPC
gokmenascioglu 0:a8fa94490a0a 78 virtual const struct rpc_method *get_rpc_methods();
gokmenascioglu 0:a8fa94490a0a 79 static struct rpc_class *get_rpc_class();
gokmenascioglu 0:a8fa94490a0a 80 #endif
gokmenascioglu 0:a8fa94490a0a 81
gokmenascioglu 0:a8fa94490a0a 82 protected:
gokmenascioglu 0:a8fa94490a0a 83
gokmenascioglu 0:a8fa94490a0a 84 int slicetime();
gokmenascioglu 0:a8fa94490a0a 85 int _running; // whether the timer is running
gokmenascioglu 0:a8fa94490a0a 86 unsigned int _start; // the start time of the latest slice
gokmenascioglu 0:a8fa94490a0a 87 int _time; // any accumulated time from previous slices
gokmenascioglu 0:a8fa94490a0a 88
gokmenascioglu 0:a8fa94490a0a 89 };
gokmenascioglu 0:a8fa94490a0a 90
gokmenascioglu 0:a8fa94490a0a 91 } // namespace mbed
gokmenascioglu 0:a8fa94490a0a 92
gokmenascioglu 0:a8fa94490a0a 93 #endif