vvv
Dependents: Enrico_newproject_copy
CD74HC165E.cpp
- Committer:
- billycorgan123
- Date:
- 2018-03-07
- Revision:
- 0:5ec20ee3f455
File content as of revision 0:5ec20ee3f455:
#include "CD74HC165E.h" #define HIGH 1 #define LOW 0 int WaitingTime=1; //CD74HC165E //PL pin 1 //CP pin 2 //CE pin 15 //Q7 pin 9 CD74HC165E::CD74HC165E (PinName PL, PinName CP, PinName Q7) : _PL(PL), _CP(CP), _Q7(Q7) { _PL = LOW; _CP = LOW; //_Q7 no perchè è una uscita e non ingresso } bool* CD74HC165E::Read() { //achieving data D0-D7 _CP = LOW; wait_us(WaitingTime); _PL = LOW; wait_us(WaitingTime*5); // 5 microseconds to be sure to achieve all data D0-D7 _PL = HIGH; //store data in array static bool myDataIn[8] = {1,0,1,0,1,0,1,0}; wait_us(WaitingTime); for (int i=7; i>=0; i--) { _CP = LOW; wait_us(WaitingTime); myDataIn[i] = _Q7; _CP = HIGH; wait_us(WaitingTime); } return myDataIn; }