Bluetooth module HC-05 Lib. suppotrs printf(); support IrqAttach, with using RTOS. include feature as background rxIrq attach. the lib store rx buf of serial, therefore can have over 16 bytes string. if you want to get string, you call read() or getLine(). read() is ALL string, getLine() is under CR('\r').

Dependencies:   RingBuffer

Fork of HC05 by Akinori Hashimoto

HC05.cpp

Committer:
AkinoriHashimoto
Date:
2015-10-28
Revision:
3:df094ed45a88
Parent:
2:931bef8c7fac
Child:
4:488e26ebc411

File content as of revision 3:df094ed45a88:

#include "HC05.h"


HC05::HC05(PinName TX, PinName RX)
    : hc05(TX, RX)
{
}
void HC05::init(int baudrate, int bit, int parity, int stop, bool CRLN)
{
    hc05.baud(baudrate);

    // 力技
    if      (parity == SerialBase::Odd)
        hc05.format(bit, SerialBase::Odd,  stop);
    else if (parity == SerialBase::Even)
        hc05.format(bit, SerialBase::Even, stop);     // 8bit, NonParity, 1stopbit
    else// if (parity == SerialBase::None)
        hc05.format(bit, SerialBase::None, stop);     // 8bit, NonParity, 1stopbit

    // attach rxIrq. because, rx buf of serial equals to 16 Bytes.
    this->hc05.attach(this, &HC05::_readIrq, Serial::RxIrq);

    CR= '\r';
    if(CRLN)
        CR= "\r\n";
    return;
}

void HC05::setAttachRx(void (*fptr)(unsigned int))
{
//    hc05.attach(fptr, Serial::RxIrq);
    fptrRxIrq= fptr;
    return;
}

bool HC05::readable()
{
//    return hc05.readable();
    return hc05.readable() || !rxStr.empty();
}

string HC05::read() // public:
{
    _read();
    if(rxStr.empty())
        return "";

    // rxStr is not empty.
    string tmp= rxStr;
    rxStr.erase();
    return tmp;
}

string HC05::getLine()
{
    string tmp= this->read();
// rxStr is NULL;

    if(tmp.empty())
        return "";

    // tmp is not empty.
    int idx= tmp.rfind('\r');
    if(idx == string::npos) {
        rxStr= tmp;     // 戻す
        return "";
    }

    // find \r
    if(tmp[++idx] == '\n')
        idx++;

    // idxは改行後の文字先頭Indexを示す。
    string rtn= tmp.substr(0, idx);
    rxStr= tmp.substr(idx);
    return rtn;
}

/*

string HC05::getLine()
{
    static string rxStr;

    rxStr= "";
    if(!hc05.readable())
        return rxStr;

    // Bufferを吸い尽くす
    while(true) { //(;;) {
        rxStr += (char)hc05.getc();
        if(!hc05.readable())
            return rxStr;//return; //break;    // Bufferになくなった
    } // end for
}
*/
void HC05::sendLine(string str, bool addCR)
{
    if(addCR)
        str += "\r\n";
    hc05.printf(str.c_str());
    return;
}
/*
void HC05::sendFloat(float num, string foreword)
{
    hc05.printf("%s%f\r\n", foreword.c_str(), num);
    return;
}
void HC05::sendInt(int num, string foreword)
{
    hc05.printf("%s%d\r\n", foreword.c_str(), num);
    return;
}
*/
int HC05::_putc(int val)     // for printf()
{
    hc05.putc(val);
    return val;
}

// for "Stream"
int HC05::_getc()
{
    return -1;//hc05.getc();
}

void HC05::_readIrq(void)
{
//    if(hc05.readable())
//        rxStr += (char)hc05.getc();

    if(!hc05.readable())
        return;

    unsigned int chr= hc05.getc();
    rxStr += chr;

    if(this->fptrRxIrq == NULL)
        return;
    fptrRxIrq(chr);

    return;
}
void HC05::_read()
{
    // Bufferを吸い尽くす
    while(hc05.readable())
        rxStr += (char)hc05.getc();
    return;         // Bufferになくなった
}

// EOF