serial_extend library for array data transmission and reception
Dependents: receives_robot_wheel
serial_extend.cpp
- Committer:
- bousiya03
- Date:
- 2014-10-05
- Revision:
- 1:e808dd01f134
- Parent:
- 0:fbf5705f90cc
File content as of revision 1:e808dd01f134:
/* *mbed Multibyte Serial Library */ #include "mbed.h" #include "serial_extend.h" #include "RawSerial.h" serial_extend::serial_extend(PinName tx,PinName rx) : __serial__(tx,rx){ /* switch(state){ case read: { __serial__.attach(this,&serial_extend::RX,Serial::RxIrq); uint8_t k = __serial__.getc(); break; } case write: { __serial__.attach(this,&serial_extend::TX,Serial::TxIrq); __serial__.putc(1); break; } case both: { __serial__.attach(this,&serial_extend::RX,Serial::RxIrq); uint8_t m = __serial__.getc(); __serial__.attach(this,&serial_extend::TX,Serial::TxIrq); __serial__.putc(1); } } */ } void serial_extend::start_write(){ __stop_write = 0; __serial__.attach(this,&serial_extend::TX,RawSerial::TxIrq); __serial__.putc(1); } void serial_extend::stop_write(){ __stop_write = 1; } void serial_extend::start_read(){ __stop_read = 0; __serial__.attach(this,&serial_extend::RX,RawSerial::RxIrq); uint8_t k = __serial__.getc(); } void serial_extend::stop_read(){ __stop_read = 1; } void serial_extend::read_data(uint8_t* readData,uint8_t readKey){ __readData = readData; __readSize = __SIZE(__readData); __readKey = readKey; } void serial_extend::write_data(uint8_t* writeData,uint8_t writeKey){ __writeData=writeData; __writeSize = __SIZE(__writeData); __writeKey = writeKey; } void serial_extend::TX(void){ if(__stop_write==1){return;} static uint8_t tx=__writeSize+2, i; static uint8_t txData[MAX_DATA_NUM]={__writeKey}; static uint8_t tx_checkcode=0; if(tx >= __writeSize+2){ txData[KEY] = __writeKey; for(int k=1;k<=__writeSize;k++){ txData[k] = __writeData[k-1]; } for(i=KEY+1, tx_checkcode=0; i<__writeSize+1; i++){ tx_checkcode ^= txData[i]; } //CHECKCODE txData[__writeSize+1] = tx_checkcode; tx=0; } __serial__.putc(txData[tx]); tx++; } void serial_extend::RX(void){ if(__stop_read==1){return;} static uint8_t rx=0, i; static uint8_t rxData[MAX_DATA_NUM]={__readKey}; static uint8_t rx_checkcode=0; rxData[rx] = __serial__.getc(); if(rxData[KEY]==__readKey){ rx++; } if(rx==__readSize+1){ for(i=KEY+1, rx_checkcode=0; i<__readSize+1; i++){ rx_checkcode ^= rxData[i]; } //CHECKCODE } if(rx >= __readSize+2){ if(rxData[__readSize+1]==rx_checkcode){ for(int m=1;m<=__readSize;m++){ __readData[m-1] = rxData[m]; } } rx=0; } } uint8_t serial_extend::readable_check(){ return __serial__.readable(); }