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Diff: mbed/Serial.h
- Revision:
- 17:d1594579eec6
- Parent:
- 0:ad97421fb1fb
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed/Serial.h Fri May 19 17:14:07 2017 +0000 @@ -0,0 +1,189 @@ +/* mbed Microcontroller Library - Serial + * Copyright (c) 2007-2011 ARM Limited. All rights reserved. + */ + +#ifndef MBED_SERIAL_H +#define MBED_SERIAL_H + +#include "device.h" + +#if DEVICE_SERIAL + +#include "platform.h" +#include "PinNames.h" +#include "PeripheralNames.h" +#include "Stream.h" +#include "FunctionPointer.h" + +namespace mbed { + +/* Class: Serial + * A serial port (UART) for communication with other serial devices + * + * Can be used for Full Duplex communication, or Simplex by specifying + * one pin as NC (Not Connected) + * + * Example: + * > // Print "Hello World" to the PC + * > + * > #include "mbed.h" + * > + * > Serial pc(USBTX, USBRX); + * > + * > int main() { + * > pc.printf("Hello World\n"); + * > } + */ +class Serial : public Stream { + +public: + + /* Constructor: Serial + * Create a Serial port, connected to the specified transmit and receive pins + * + * Variables: + * tx - Transmit pin + * rx - Receive pin + * + * Note: Either tx or rx may be specified as NC if unused + */ + Serial(PinName tx, PinName rx, const char *name = NULL); + + /* Function: baud + * Set the baud rate of the serial port + * + * Variables: + * baudrate - The baudrate of the serial port (default = 9600). + */ + void baud(int baudrate); + + enum Parity { + None = 0 + , Odd + , Even + , Forced1 + , Forced0 + }; + + enum IrqType { + RxIrq = 0 + , TxIrq + }; + + /* Function: format + * Set the transmission format used by the Serial port + * + * Variables: + * bits - The number of bits in a word (5-8; default = 8) + * parity - The parity used (Serial::None, Serial::Odd, Serial::Even, Serial::Forced1, Serial::Forced0; default = Serial::None) + * stop - The number of stop bits (1 or 2; default = 1) + */ + void format(int bits = 8, Parity parity = Serial::None, int stop_bits = 1); + +#if 0 // Inhereted from Stream, for documentation only + + /* Function: putc + * Write a character + * + * Variables: + * c - The character to write to the serial port + */ + int putc(int c); + + /* Function: getc + * Read a character + * + * Reads a character from the serial port. This will block until + * a character is available. To see if a character is available, + * see <readable> + * + * Variables: + * returns - The character read from the serial port + */ + int getc(); + + /* Function: printf + * Write a formated string + * + * Variables: + * format - A printf-style format string, followed by the + * variables to use in formating the string. + */ + int printf(const char* format, ...); + + /* Function: scanf + * Read a formated string + * + * Variables: + * format - A scanf-style format string, + * followed by the pointers to variables to store the results. + */ + int scanf(const char* format, ...); + +#endif + + /* Function: readable + * Determine if there is a character available to read + * + * Variables: + * returns - 1 if there is a character available to read, else 0 + */ + int readable(); + + /* Function: writeable + * Determine if there is space available to write a character + * + * Variables: + * returns - 1 if there is space to write a character, else 0 + */ + int writeable(); + + /* Function: attach + * Attach a function to call whenever a serial interrupt is generated + * + * Variables: + * fptr - A pointer to a void function, or 0 to set as none + * type - Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty) + */ + void attach(void (*fptr)(void), IrqType type = RxIrq); + + /* Function: attach + * Attach a member function to call whenever a serial interrupt is generated + * + * Variables: + * tptr - pointer to the object to call the member function on + * mptr - pointer to the member function to be called + * type - Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty) + */ + template<typename T> + void attach(T* tptr, void (T::*mptr)(void), IrqType type = RxIrq) { + if((mptr != NULL) && (tptr != NULL)) { + _irq[type].attach(tptr, mptr); + setup_interrupt(type); + } + } + +#ifdef MBED_RPC + virtual const struct rpc_method *get_rpc_methods(); + static struct rpc_class *get_rpc_class(); +#endif + +protected: + + void setup_interrupt(IrqType type); + void remove_interrupt(IrqType type); + + virtual int _getc(); + virtual int _putc(int c); + + UARTName _uart; + FunctionPointer _irq[2]; + int _uidx; + +}; + +} // namespace mbed + +#endif + +#endif