inoue hirohumi / Mbed 2 deprecated line_counter_test

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Dependencies:   mbed

SerialHalfDuplex/SerialHalfDuplex.h@3:aade65d7ae44, 2014-11-29 (annotated)

Committer:
iou16
Date:
Sat Nov 29 18:17:26 2014 +0000
Revision:
3:aade65d7ae44
Parent:
0:af0b7ccbbad8 
test

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iou16 0:af0b7ccbbad8 1 /* mbed Microcontroller Library
iou16 0:af0b7ccbbad8 2 * Copyright (c) 2006-2012 ARM Limited
iou16 0:af0b7ccbbad8 3 *
iou16 0:af0b7ccbbad8 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
iou16 0:af0b7ccbbad8 5 * of this software and associated documentation files (the "Software"), to deal
iou16 0:af0b7ccbbad8 6 * in the Software without restriction, including without limitation the rights
iou16 0:af0b7ccbbad8 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
iou16 0:af0b7ccbbad8 8 * copies of the Software, and to permit persons to whom the Software is
iou16 0:af0b7ccbbad8 9 * furnished to do so, subject to the following conditions:
iou16 0:af0b7ccbbad8 10 *
iou16 0:af0b7ccbbad8 11 * The above copyright notice and this permission notice shall be included in
iou16 0:af0b7ccbbad8 12 * all copies or substantial portions of the Software.
iou16 0:af0b7ccbbad8 13 *
iou16 0:af0b7ccbbad8 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
iou16 0:af0b7ccbbad8 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
iou16 0:af0b7ccbbad8 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
iou16 0:af0b7ccbbad8 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
iou16 0:af0b7ccbbad8 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
iou16 0:af0b7ccbbad8 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
iou16 0:af0b7ccbbad8 20 * SOFTWARE.
iou16 0:af0b7ccbbad8 21 *
iou16 0:af0b7ccbbad8 22 * NOTE: This is an unsupported legacy untested library.
iou16 0:af0b7ccbbad8 23 */
iou16 0:af0b7ccbbad8 24 #ifndef MBED_SERIALHALFDUPLEX_H
iou16 0:af0b7ccbbad8 25 #define MBED_SERIALHALFDUPLEX_H
iou16 0:af0b7ccbbad8 26
iou16 0:af0b7ccbbad8 27 #include "device.h"
iou16 0:af0b7ccbbad8 28
iou16 0:af0b7ccbbad8 29 #if DEVICE_SERIAL
iou16 0:af0b7ccbbad8 30
iou16 0:af0b7ccbbad8 31 #include "Serial.h"
iou16 0:af0b7ccbbad8 32 #include "PinNames.h"
iou16 0:af0b7ccbbad8 33 #include "PeripheralNames.h"
iou16 0:af0b7ccbbad8 34
iou16 0:af0b7ccbbad8 35 namespace mbed {
iou16 0:af0b7ccbbad8 36
iou16 0:af0b7ccbbad8 37 /* Class: SerialHalfDuplex
iou16 0:af0b7ccbbad8 38 * A serial port (UART) for communication with other devices using
iou16 0:af0b7ccbbad8 39 * Half-Duplex, allowing transmit and receive on a single
iou16 0:af0b7ccbbad8 40 * shared transmit and receive line. Only one end should be transmitting
iou16 0:af0b7ccbbad8 41 * at a time.
iou16 0:af0b7ccbbad8 42 *
iou16 0:af0b7ccbbad8 43 * Both the tx and rx pin should be defined, and wired together.
iou16 0:af0b7ccbbad8 44 * This is in addition to them being wired to the other serial
iou16 0:af0b7ccbbad8 45 * device to allow both read and write functions to operate.
iou16 0:af0b7ccbbad8 46 *
iou16 0:af0b7ccbbad8 47 * Example:
iou16 0:af0b7ccbbad8 48 * > // Send a byte to a second HalfDuplex device, and read the response
iou16 0:af0b7ccbbad8 49 * >
iou16 0:af0b7ccbbad8 50 * > #include "mbed.h"
iou16 0:af0b7ccbbad8 51 * >
iou16 0:af0b7ccbbad8 52 * > // p9 and p10 should be wired together to form "a"
iou16 0:af0b7ccbbad8 53 * > // p28 and p27 should be wired together to form "b"
iou16 0:af0b7ccbbad8 54 * > // p9/p10 should be wired to p28/p27 as the Half Duplex connection
iou16 0:af0b7ccbbad8 55 * >
iou16 0:af0b7ccbbad8 56 * > SerialHalfDuplex a(p9, p10);
iou16 0:af0b7ccbbad8 57 * > SerialHalfDuplex b(p28, p27);
iou16 0:af0b7ccbbad8 58 * >
iou16 0:af0b7ccbbad8 59 * > void b_rx() { // second device response
iou16 0:af0b7ccbbad8 60 * > b.putc(b.getc() + 4);
iou16 0:af0b7ccbbad8 61 * > }
iou16 0:af0b7ccbbad8 62 * >
iou16 0:af0b7ccbbad8 63 * > int main() {
iou16 0:af0b7ccbbad8 64 * > b.attach(&b_rx);
iou16 0:af0b7ccbbad8 65 * > for(int c = 'A'; c < 'Z'; c++) {
iou16 0:af0b7ccbbad8 66 * > a.putc(c);
iou16 0:af0b7ccbbad8 67 * > printf("sent [%c]\n", c);
iou16 0:af0b7ccbbad8 68 * > wait(0.5); // b should respond
iou16 0:af0b7ccbbad8 69 * > if(a.readable()) {
iou16 0:af0b7ccbbad8 70 * > printf("received [%c]\n", a.getc());
iou16 0:af0b7ccbbad8 71 * > }
iou16 0:af0b7ccbbad8 72 * > }
iou16 0:af0b7ccbbad8 73 * > }
iou16 0:af0b7ccbbad8 74 *
iou16 0:af0b7ccbbad8 75 * For Simplex and Full-Duplex Serial communication, see <Serial>
iou16 0:af0b7ccbbad8 76 */
iou16 0:af0b7ccbbad8 77 class SerialHalfDuplex : public Serial {
iou16 0:af0b7ccbbad8 78
iou16 0:af0b7ccbbad8 79 public:
iou16 0:af0b7ccbbad8 80 /* Constructor: SerialHalfDuplex
iou16 0:af0b7ccbbad8 81 * Create a half-duplex serial port, connected to the specified transmit
iou16 0:af0b7ccbbad8 82 * and receive pins.
iou16 0:af0b7ccbbad8 83 *
iou16 0:af0b7ccbbad8 84 * These pins should be wired together, as well as to the target device
iou16 0:af0b7ccbbad8 85 *
iou16 0:af0b7ccbbad8 86 * Variables:
iou16 0:af0b7ccbbad8 87 * tx - Transmit pin
iou16 0:af0b7ccbbad8 88 * rx - Receive pin
iou16 0:af0b7ccbbad8 89 */
iou16 0:af0b7ccbbad8 90 SerialHalfDuplex(PinName tx, PinName rx, const char *name = NULL);
iou16 0:af0b7ccbbad8 91
iou16 0:af0b7ccbbad8 92 #if 0 // Inherited from Serial class, for documentation
iou16 0:af0b7ccbbad8 93 /* Function: baud
iou16 0:af0b7ccbbad8 94 * Set the baud rate of the serial port
iou16 0:af0b7ccbbad8 95 *
iou16 0:af0b7ccbbad8 96 * Variables:
iou16 0:af0b7ccbbad8 97 * baudrate - The baudrate of the serial port (default = 9600).
iou16 0:af0b7ccbbad8 98 */
iou16 0:af0b7ccbbad8 99 void baud(int baudrate);
iou16 0:af0b7ccbbad8 100
iou16 0:af0b7ccbbad8 101 enum Parity {
iou16 0:af0b7ccbbad8 102 None = 0
iou16 0:af0b7ccbbad8 103 , Odd
iou16 0:af0b7ccbbad8 104 , Even
iou16 0:af0b7ccbbad8 105 , Forced1
iou16 0:af0b7ccbbad8 106 , Forced0
iou16 0:af0b7ccbbad8 107 };
iou16 0:af0b7ccbbad8 108
iou16 0:af0b7ccbbad8 109 /* Function: format
iou16 0:af0b7ccbbad8 110 * Set the transmission format used by the Serial port
iou16 0:af0b7ccbbad8 111 *
iou16 0:af0b7ccbbad8 112 * Variables:
iou16 0:af0b7ccbbad8 113 * bits - The number of bits in a word (5-8; default = 8)
iou16 0:af0b7ccbbad8 114 * parity - The parity used (Serial::None, Serial::Odd,
iou16 0:af0b7ccbbad8 115 Serial::Even, Serial::Forced1, Serial::Forced0; default = Serial::None)
iou16 0:af0b7ccbbad8 116 * stop - The number of stop bits (1 or 2; default = 1)
iou16 0:af0b7ccbbad8 117 */
iou16 0:af0b7ccbbad8 118 void format(int bits = 8, Parity parity = Serial::None, int stop_bits
iou16 0:af0b7ccbbad8 119 = 1);
iou16 0:af0b7ccbbad8 120
iou16 0:af0b7ccbbad8 121 /* Function: putc
iou16 0:af0b7ccbbad8 122 * Write a character
iou16 0:af0b7ccbbad8 123 *
iou16 0:af0b7ccbbad8 124 * Variables:
iou16 0:af0b7ccbbad8 125 * c - The character to write to the serial port
iou16 0:af0b7ccbbad8 126 */
iou16 0:af0b7ccbbad8 127 int putc(int c);
iou16 0:af0b7ccbbad8 128
iou16 0:af0b7ccbbad8 129 /* Function: getc
iou16 0:af0b7ccbbad8 130 * Read a character
iou16 0:af0b7ccbbad8 131 *
iou16 0:af0b7ccbbad8 132 * Read a character from the serial port. This call will block
iou16 0:af0b7ccbbad8 133 * until a character is available. For testing if a character is
iou16 0:af0b7ccbbad8 134 * available for reading, see <readable>.
iou16 0:af0b7ccbbad8 135 *
iou16 0:af0b7ccbbad8 136 * Variables:
iou16 0:af0b7ccbbad8 137 * returns - The character read from the serial port
iou16 0:af0b7ccbbad8 138 */
iou16 0:af0b7ccbbad8 139 int getc();
iou16 0:af0b7ccbbad8 140
iou16 0:af0b7ccbbad8 141 /* Function: printf
iou16 0:af0b7ccbbad8 142 * Write a formated string
iou16 0:af0b7ccbbad8 143 *
iou16 0:af0b7ccbbad8 144 * Variables:
iou16 0:af0b7ccbbad8 145 * format - A printf-style format string, followed by the
iou16 0:af0b7ccbbad8 146 * variables to use in formating the string.
iou16 0:af0b7ccbbad8 147 */
iou16 0:af0b7ccbbad8 148 int printf(const char* format, ...);
iou16 0:af0b7ccbbad8 149
iou16 0:af0b7ccbbad8 150 /* Function: scanf
iou16 0:af0b7ccbbad8 151 * Read a formated string
iou16 0:af0b7ccbbad8 152 *
iou16 0:af0b7ccbbad8 153 * Variables:
iou16 0:af0b7ccbbad8 154 * format - A scanf-style format string,
iou16 0:af0b7ccbbad8 155 * followed by the pointers to variables to store the results.
iou16 0:af0b7ccbbad8 156 */
iou16 0:af0b7ccbbad8 157 int scanf(const char* format, ...);
iou16 0:af0b7ccbbad8 158
iou16 0:af0b7ccbbad8 159 /* Function: readable
iou16 0:af0b7ccbbad8 160 * Determine if there is a character available to read
iou16 0:af0b7ccbbad8 161 *
iou16 0:af0b7ccbbad8 162 * Variables:
iou16 0:af0b7ccbbad8 163 * returns - 1 if there is a character available to read, else 0
iou16 0:af0b7ccbbad8 164 */
iou16 0:af0b7ccbbad8 165 int readable();
iou16 0:af0b7ccbbad8 166
iou16 0:af0b7ccbbad8 167 /* Function: writeable
iou16 0:af0b7ccbbad8 168 * Determine if there is space available to write a character
iou16 0:af0b7ccbbad8 169 *
iou16 0:af0b7ccbbad8 170 * Variables:
iou16 0:af0b7ccbbad8 171 * returns - 1 if there is space to write a character, else 0
iou16 0:af0b7ccbbad8 172 */
iou16 0:af0b7ccbbad8 173 int writeable();
iou16 0:af0b7ccbbad8 174
iou16 0:af0b7ccbbad8 175 /* Function: attach
iou16 0:af0b7ccbbad8 176 * Attach a function to call whenever a serial interrupt is generated
iou16 0:af0b7ccbbad8 177 *
iou16 0:af0b7ccbbad8 178 * Variables:
iou16 0:af0b7ccbbad8 179 * fptr - A pointer to a void function, or 0 to set as none
iou16 0:af0b7ccbbad8 180 */
iou16 0:af0b7ccbbad8 181 void attach(void (*fptr)(void));
iou16 0:af0b7ccbbad8 182
iou16 0:af0b7ccbbad8 183 /* Function: attach
iou16 0:af0b7ccbbad8 184 * Attach a member function to call whenever a serial interrupt is generated
iou16 0:af0b7ccbbad8 185 *
iou16 0:af0b7ccbbad8 186 * Variables:
iou16 0:af0b7ccbbad8 187 * tptr - pointer to the object to call the member function on
iou16 0:af0b7ccbbad8 188 * mptr - pointer to the member function to be called
iou16 0:af0b7ccbbad8 189 */
iou16 0:af0b7ccbbad8 190 template<typename T>
iou16 0:af0b7ccbbad8 191 void attach(T* tptr, void (T::*mptr)(void));
iou16 0:af0b7ccbbad8 192
iou16 0:af0b7ccbbad8 193 #endif
iou16 0:af0b7ccbbad8 194
iou16 0:af0b7ccbbad8 195 protected:
iou16 0:af0b7ccbbad8 196 PinName _txpin;
iou16 0:af0b7ccbbad8 197
iou16 0:af0b7ccbbad8 198 virtual int _putc(int c);
iou16 0:af0b7ccbbad8 199 virtual int _getc(void);
iou16 0:af0b7ccbbad8 200
iou16 0:af0b7ccbbad8 201 }; // End class SerialHalfDuplex
iou16 0:af0b7ccbbad8 202
iou16 0:af0b7ccbbad8 203 } // End namespace
iou16 0:af0b7ccbbad8 204
iou16 0:af0b7ccbbad8 205 #endif
iou16 0:af0b7ccbbad8 206
iou16 0:af0b7ccbbad8 207 #endif