Takayuki Ito / mbed

Library

Dependents:   OSCTest_2

Fork of mbed by gokmen ascioglu

PortOut.h@1:b749145a7bb1, 2013-10-04 (annotated)

Committer:
itotaka
Date:
Fri Oct 04 12:17:02 2013 +0000
Revision:
1:b749145a7bb1
Parent:
0:a8fa94490a0a 
changed Max_Arg to 80

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gokmenascioglu 0:a8fa94490a0a 1 /* mbed Microcontroller Library - PortOut
gokmenascioglu 0:a8fa94490a0a 2 * Copyright (c) 2006-2011 ARM Limited. All rights reserved.
gokmenascioglu 0:a8fa94490a0a 3 */
gokmenascioglu 0:a8fa94490a0a 4
gokmenascioglu 0:a8fa94490a0a 5 #ifndef MBED_PORTOUT_H
gokmenascioglu 0:a8fa94490a0a 6 #define MBED_PORTOUT_H
gokmenascioglu 0:a8fa94490a0a 7
gokmenascioglu 0:a8fa94490a0a 8 #include "device.h"
gokmenascioglu 0:a8fa94490a0a 9
gokmenascioglu 0:a8fa94490a0a 10 #if DEVICE_PORTOUT
gokmenascioglu 0:a8fa94490a0a 11
gokmenascioglu 0:a8fa94490a0a 12 #include "platform.h"
gokmenascioglu 0:a8fa94490a0a 13 #include "PinNames.h"
gokmenascioglu 0:a8fa94490a0a 14 #include "Base.h"
gokmenascioglu 0:a8fa94490a0a 15
gokmenascioglu 0:a8fa94490a0a 16 #include "PortNames.h"
gokmenascioglu 0:a8fa94490a0a 17
gokmenascioglu 0:a8fa94490a0a 18 namespace mbed {
gokmenascioglu 0:a8fa94490a0a 19 /* Class: PortOut
gokmenascioglu 0:a8fa94490a0a 20 * A multiple pin digital out
gokmenascioglu 0:a8fa94490a0a 21 *
gokmenascioglu 0:a8fa94490a0a 22 * Example:
gokmenascioglu 0:a8fa94490a0a 23 * > // Toggle all four LEDs
gokmenascioglu 0:a8fa94490a0a 24 * >
gokmenascioglu 0:a8fa94490a0a 25 * > #include "mbed.h"
gokmenascioglu 0:a8fa94490a0a 26 * >
gokmenascioglu 0:a8fa94490a0a 27 * > // LED1 = P1.18 LED2 = P1.20 LED3 = P1.21 LED4 = P1.23
gokmenascioglu 0:a8fa94490a0a 28 * > #define LED_MASK 0x00B40000
gokmenascioglu 0:a8fa94490a0a 29 * >
gokmenascioglu 0:a8fa94490a0a 30 * > PortOut ledport(Port1, LED_MASK);
gokmenascioglu 0:a8fa94490a0a 31 * >
gokmenascioglu 0:a8fa94490a0a 32 * > int main() {
gokmenascioglu 0:a8fa94490a0a 33 * > while(1) {
gokmenascioglu 0:a8fa94490a0a 34 * > ledport = LED_MASK;
gokmenascioglu 0:a8fa94490a0a 35 * > wait(1);
gokmenascioglu 0:a8fa94490a0a 36 * > ledport = 0;
gokmenascioglu 0:a8fa94490a0a 37 * > wait(1);
gokmenascioglu 0:a8fa94490a0a 38 * > }
gokmenascioglu 0:a8fa94490a0a 39 * > }
gokmenascioglu 0:a8fa94490a0a 40 */
gokmenascioglu 0:a8fa94490a0a 41 class PortOut {
gokmenascioglu 0:a8fa94490a0a 42 public:
gokmenascioglu 0:a8fa94490a0a 43
gokmenascioglu 0:a8fa94490a0a 44 /* Constructor: PortOut
gokmenascioglu 0:a8fa94490a0a 45 * Create an PortOut, connected to the specified port
gokmenascioglu 0:a8fa94490a0a 46 *
gokmenascioglu 0:a8fa94490a0a 47 * Variables:
gokmenascioglu 0:a8fa94490a0a 48 * port - Port to connect to (Port0-Port5)
gokmenascioglu 0:a8fa94490a0a 49 * mask - A bitmask to identify which bits in the port should be included (0 - ignore)
gokmenascioglu 0:a8fa94490a0a 50 */
gokmenascioglu 0:a8fa94490a0a 51 PortOut(PortName port, int mask = 0xFFFFFFFF);
gokmenascioglu 0:a8fa94490a0a 52
gokmenascioglu 0:a8fa94490a0a 53 /* Function: write
gokmenascioglu 0:a8fa94490a0a 54 * Write the value to the output port
gokmenascioglu 0:a8fa94490a0a 55 *
gokmenascioglu 0:a8fa94490a0a 56 * Variables:
gokmenascioglu 0:a8fa94490a0a 57 * value - An integer specifying a bit to write for every corresponding PortOut pin
gokmenascioglu 0:a8fa94490a0a 58 */
gokmenascioglu 0:a8fa94490a0a 59 void write(int value);
gokmenascioglu 0:a8fa94490a0a 60
gokmenascioglu 0:a8fa94490a0a 61 /* Function: read
gokmenascioglu 0:a8fa94490a0a 62 * Read the value currently output on the port
gokmenascioglu 0:a8fa94490a0a 63 *
gokmenascioglu 0:a8fa94490a0a 64 * Variables:
gokmenascioglu 0:a8fa94490a0a 65 * returns - An integer with each bit corresponding to associated PortOut pin setting
gokmenascioglu 0:a8fa94490a0a 66 */
gokmenascioglu 0:a8fa94490a0a 67 int read();
gokmenascioglu 0:a8fa94490a0a 68
gokmenascioglu 0:a8fa94490a0a 69 /* Function: operator=
gokmenascioglu 0:a8fa94490a0a 70 * A shorthand for <write>
gokmenascioglu 0:a8fa94490a0a 71 */
gokmenascioglu 0:a8fa94490a0a 72 PortOut& operator= (int value) {
gokmenascioglu 0:a8fa94490a0a 73 write(value);
gokmenascioglu 0:a8fa94490a0a 74 return *this;
gokmenascioglu 0:a8fa94490a0a 75 }
gokmenascioglu 0:a8fa94490a0a 76
gokmenascioglu 0:a8fa94490a0a 77 PortOut& operator= (PortOut& rhs) {
gokmenascioglu 0:a8fa94490a0a 78 write(rhs.read());
gokmenascioglu 0:a8fa94490a0a 79 return *this;
gokmenascioglu 0:a8fa94490a0a 80 }
gokmenascioglu 0:a8fa94490a0a 81
gokmenascioglu 0:a8fa94490a0a 82 /* Function: operator int()
gokmenascioglu 0:a8fa94490a0a 83 * A shorthand for <read>
gokmenascioglu 0:a8fa94490a0a 84 */
gokmenascioglu 0:a8fa94490a0a 85 operator int() {
gokmenascioglu 0:a8fa94490a0a 86 return read();
gokmenascioglu 0:a8fa94490a0a 87 }
gokmenascioglu 0:a8fa94490a0a 88
gokmenascioglu 0:a8fa94490a0a 89 private:
gokmenascioglu 0:a8fa94490a0a 90 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
gokmenascioglu 0:a8fa94490a0a 91 LPC_GPIO_TypeDef *_gpio;
gokmenascioglu 0:a8fa94490a0a 92 #endif
gokmenascioglu 0:a8fa94490a0a 93 PortName _port;
gokmenascioglu 0:a8fa94490a0a 94 uint32_t _mask;
gokmenascioglu 0:a8fa94490a0a 95 };
gokmenascioglu 0:a8fa94490a0a 96
gokmenascioglu 0:a8fa94490a0a 97 } // namespace mbed
gokmenascioglu 0:a8fa94490a0a 98
gokmenascioglu 0:a8fa94490a0a 99 #endif
gokmenascioglu 0:a8fa94490a0a 100
gokmenascioglu 0:a8fa94490a0a 101 #endif