Jon Freeman / AsyncSerial

Asynchronous (Non-blocking) Serial Communication library with variable length software ring buffer (FIFO). You can use RawSerial Library's primary method. Operability confirmed on mbed 2.0.

Dependencies:   FIFO

Dependents:   Brute_TS_Controller_2018_11

AsyncSerial.hpp@15:e8b153dcb239, 2018-06-23 (annotated)

Committer:
JonFreeman
Date:
Sat Jun 23 09:37:12 2018 +0000
Revision:
15:e8b153dcb239
Parent:
13:e372a354d969 
upped buffer size to 512;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
babylonica 5:a50cdaa90d6a 1 // -*- coding: utf-8 -*-
babylonica 5:a50cdaa90d6a 2 /**
babylonica 5:a50cdaa90d6a 3 @file AsyncSerial.hpp
babylonica 5:a50cdaa90d6a 4 @brief Asynchronous (Non-brocking) Serial Communication library with variable length software ring buffer (FIFO). You can use also RawSerial Library's method. You can set the baudrate of the serial communication when instantiating.
babylonica 5:a50cdaa90d6a 5
babylonica 5:a50cdaa90d6a 6 @author T.Kawamura
babylonica 13:e372a354d969 7 @version 1.3
babylonica 5:a50cdaa90d6a 8 @date 2017-03-29 T.Kawamura Written for C++/mbed.
babylonica 5:a50cdaa90d6a 9 @date 2017-03-30 T.Kawamura Bug Fixed: Cannot use format(), baud().
babylonica 8:7390f9bb28d3 10 @date 2017-06-17 T.Kawamura Update: FIFO Buffer Fixed.
babylonica 9:709719dddd3e 11 @date 2017-06-23 T.Kawamura Bug Fixed: Cant use wait().
babylonica 5:a50cdaa90d6a 12 @see
babylonica 5:a50cdaa90d6a 13 Copyright (C) 2017 T.Kawamura.
babylonica 5:a50cdaa90d6a 14 Released under the MIT license.
babylonica 5:a50cdaa90d6a 15 http://opensource.org/licenses/mit-license.php
babylonica 5:a50cdaa90d6a 16
babylonica 5:a50cdaa90d6a 17 */
babylonica 5:a50cdaa90d6a 18
babylonica 5:a50cdaa90d6a 19 #ifndef ASYNCSERIAL_H
babylonica 5:a50cdaa90d6a 20 #define ASYNCSERIAL_H
babylonica 5:a50cdaa90d6a 21
babylonica 5:a50cdaa90d6a 22 #include "mbed.h"
babylonica 5:a50cdaa90d6a 23 #include "FIFO.hpp"
babylonica 5:a50cdaa90d6a 24 #include <stdarg.h>
babylonica 5:a50cdaa90d6a 25 #include <string.h>
babylonica 5:a50cdaa90d6a 26
babylonica 5:a50cdaa90d6a 27 using namespace std;
babylonica 5:a50cdaa90d6a 28
JonFreeman 15:e8b153dcb239 29 //#define PRINTF_STRING_BUFFER_SIZE 256
JonFreeman 15:e8b153dcb239 30 #define PRINTF_STRING_BUFFER_SIZE 512
babylonica 5:a50cdaa90d6a 31
babylonica 5:a50cdaa90d6a 32 /**
babylonica 5:a50cdaa90d6a 33 @class AsyncSerial
babylonica 5:a50cdaa90d6a 34 @brief Asynchronous Serial Communication with FIFO
babylonica 5:a50cdaa90d6a 35 */
babylonica 10:1baa8e833ac6 36 class AsyncSerial{
babylonica 5:a50cdaa90d6a 37 private:
babylonica 12:bfe3984fb2e5 38
babylonica 12:bfe3984fb2e5 39 DigitalOut *led;
babylonica 12:bfe3984fb2e5 40
babylonica 12:bfe3984fb2e5 41
babylonica 12:bfe3984fb2e5 42
babylonica 10:1baa8e833ac6 43 // Serial port
babylonica 10:1baa8e833ac6 44 RawSerial *serial;
babylonica 10:1baa8e833ac6 45
babylonica 10:1baa8e833ac6 46 // FIFO is uint8_t(unsigned char) buffer
babylonica 10:1baa8e833ac6 47 FIFO<uint8_t> *fifo_tx;
babylonica 10:1baa8e833ac6 48 FIFO<uint8_t> *fifo_rx;
babylonica 10:1baa8e833ac6 49
babylonica 5:a50cdaa90d6a 50 bool Is_Serial_Sending;
babylonica 10:1baa8e833ac6 51
babylonica 5:a50cdaa90d6a 52 void ISR_TX(void);
babylonica 5:a50cdaa90d6a 53 void ISR_RX(void);
babylonica 5:a50cdaa90d6a 54
babylonica 5:a50cdaa90d6a 55 public:
babylonica 5:a50cdaa90d6a 56
babylonica 5:a50cdaa90d6a 57 /**
babylonica 5:a50cdaa90d6a 58 @brief Create a new AsyncSerial Port.
babylonica 5:a50cdaa90d6a 59 @param txpin Tx pin name (Defined in PinName.h)
babylonica 5:a50cdaa90d6a 60 @param rxpin Rx pin name (Defined in PinName.h)
babylonica 5:a50cdaa90d6a 61 @param baudrate Baudrate (ex: 115200). Default value is 9600.
babylonica 5:a50cdaa90d6a 62 @param buffer_size Buffer size. Default value is 256. (byte)
babylonica 5:a50cdaa90d6a 63 */
babylonica 5:a50cdaa90d6a 64 AsyncSerial(PinName txpin, PinName rxpin, uint32_t baudrate=9600, uint32_t buffer_size=256);
babylonica 5:a50cdaa90d6a 65 /**
babylonica 5:a50cdaa90d6a 66 @brief Disable the AsyncSerial Port.
babylonica 5:a50cdaa90d6a 67 @param No parameters.
babylonica 5:a50cdaa90d6a 68 */
babylonica 5:a50cdaa90d6a 69 virtual ~AsyncSerial(void);
babylonica 5:a50cdaa90d6a 70
babylonica 5:a50cdaa90d6a 71 /**
babylonica 5:a50cdaa90d6a 72 @brief Get how many bytes are in the rx buffer.
babylonica 5:a50cdaa90d6a 73 @param No parameters.
babylonica 5:a50cdaa90d6a 74 @return Size of readable data. (byte)
babylonica 5:a50cdaa90d6a 75 */
babylonica 5:a50cdaa90d6a 76 virtual int readable(void);
babylonica 5:a50cdaa90d6a 77
babylonica 5:a50cdaa90d6a 78 /**
babylonica 5:a50cdaa90d6a 79 @brief Check writeable or not.
babylonica 5:a50cdaa90d6a 80 @param No Parameters.
babylonica 5:a50cdaa90d6a 81 @retval 1 Always return 1 because this library provides asynchronous serial.
babylonica 5:a50cdaa90d6a 82 */
babylonica 5:a50cdaa90d6a 83 virtual int writeable(void);
babylonica 0:907ac3c2fadc 84
babylonica 5:a50cdaa90d6a 85 /**
babylonica 5:a50cdaa90d6a 86 @brief Get 1byte from the AsyncSerial port.
babylonica 5:a50cdaa90d6a 87 @param No parameters.
babylonica 5:a50cdaa90d6a 88 @retval All Got Data
babylonica 5:a50cdaa90d6a 89 @retval 0 Error.
babylonica 5:a50cdaa90d6a 90 */
babylonica 5:a50cdaa90d6a 91 virtual int getc(void);
babylonica 5:a50cdaa90d6a 92
babylonica 5:a50cdaa90d6a 93 /**
babylonica 5:a50cdaa90d6a 94 @brief Peek 1byte from the AsyncSerial port.
babylonica 5:a50cdaa90d6a 95 @param No parameters.
babylonica 5:a50cdaa90d6a 96 @retval ALL Got Data
babylonica 5:a50cdaa90d6a 97 @retval 0 Error.
babylonica 5:a50cdaa90d6a 98 */
babylonica 5:a50cdaa90d6a 99 virtual int peekc(void);
babylonica 5:a50cdaa90d6a 100
babylonica 5:a50cdaa90d6a 101 /**
babylonica 5:a50cdaa90d6a 102 @brief Put 1byte to the AsyncSerial port.
babylonica 5:a50cdaa90d6a 103 @param data A Data for put
babylonica 8:7390f9bb28d3 104 @return Nothing.
babylonica 5:a50cdaa90d6a 105 */
babylonica 8:7390f9bb28d3 106 virtual void putc(int c);
babylonica 5:a50cdaa90d6a 107
babylonica 5:a50cdaa90d6a 108 /**
babylonica 5:a50cdaa90d6a 109 @brief Write a string with new line. The string must be NULL terminated.
babylonica 5:a50cdaa90d6a 110 @param *str A String for write (Must be NULL terminated).
babylonica 8:7390f9bb28d3 111 @return Nothing.
babylonica 5:a50cdaa90d6a 112 */
babylonica 8:7390f9bb28d3 113 virtual void puts(const char *str);
babylonica 5:a50cdaa90d6a 114
babylonica 5:a50cdaa90d6a 115 /**
babylonica 5:a50cdaa90d6a 116 @brief Write a formatted string to the AsyncSerial port.
babylonica 5:a50cdaa90d6a 117 @param *format A Formatted string for write.
babylonica 5:a50cdaa90d6a 118 @retval 0 Error.
babylonica 5:a50cdaa90d6a 119 @retval 1+ Wrote string size (byte).
babylonica 5:a50cdaa90d6a 120 */
babylonica 5:a50cdaa90d6a 121 virtual int printf(const char *format, ...);
babylonica 5:a50cdaa90d6a 122
babylonica 5:a50cdaa90d6a 123 /**
babylonica 5:a50cdaa90d6a 124 @brief Write byte array to the AsyncSerial port.
babylonica 5:a50cdaa90d6a 125 @param *s A pointer to the array for write.
babylonica 5:a50cdaa90d6a 126 @param length Write size (byte).
babylonica 5:a50cdaa90d6a 127 @retval 0 Error.
babylonica 5:a50cdaa90d6a 128 @retval 1 Success.
babylonica 5:a50cdaa90d6a 129 */
babylonica 5:a50cdaa90d6a 130 virtual int write(const uint8_t *buffer, int length);
babylonica 5:a50cdaa90d6a 131
babylonica 5:a50cdaa90d6a 132 /**
babylonica 10:1baa8e833ac6 133 @brief Abort the on-going read transfer.
babylonica 5:a50cdaa90d6a 134 @param No parameters.
babylonica 5:a50cdaa90d6a 135 */
babylonica 10:1baa8e833ac6 136 virtual void abort_read(void);
babylonica 10:1baa8e833ac6 137
babylonica 10:1baa8e833ac6 138 /**
babylonica 10:1baa8e833ac6 139 @brief Abort the on-going write transfer.
babylonica 10:1baa8e833ac6 140 @param No parameters.
babylonica 10:1baa8e833ac6 141 */
babylonica 10:1baa8e833ac6 142 virtual void abort_write(void);
babylonica 10:1baa8e833ac6 143
babylonica 5:a50cdaa90d6a 144 /**
babylonica 5:a50cdaa90d6a 145 @brief Wait until finish all sending.
babylonica 5:a50cdaa90d6a 146 @param No parameters.
babylonica 5:a50cdaa90d6a 147 */
babylonica 5:a50cdaa90d6a 148 virtual void wait(void);
babylonica 5:a50cdaa90d6a 149
babylonica 5:a50cdaa90d6a 150 /**
babylonica 5:a50cdaa90d6a 151 @brief Set bits, parity and stop bits.
babylonica 5:a50cdaa90d6a 152 @param bits Bits (5 ~ 8)
babylonica 5:a50cdaa90d6a 153 @param parity Parity
babylonica 5:a50cdaa90d6a 154 @param stop_bits Stop bits (1 or 2)
babylonica 5:a50cdaa90d6a 155 */
babylonica 10:1baa8e833ac6 156 virtual void format(int bits=8, RawSerial::Parity parity=RawSerial::None, int stop_bits=1);
babylonica 5:a50cdaa90d6a 157
babylonica 5:a50cdaa90d6a 158 /**
babylonica 5:a50cdaa90d6a 159 @brief Set baud rate.
babylonica 5:a50cdaa90d6a 160 @param baudrate baudrate (bps).
babylonica 5:a50cdaa90d6a 161 */
babylonica 5:a50cdaa90d6a 162 virtual void baud(int baudrate);
babylonica 10:1baa8e833ac6 163
babylonica 5:a50cdaa90d6a 164 };
babylonica 5:a50cdaa90d6a 165
babylonica 5:a50cdaa90d6a 166 #endif
babylonica 5:a50cdaa90d6a 167