yuto kamo / ShiftReg

ShiftReg library (74HC595, NUJ3711)

ShiftReg.cpp@1:3741bc0fbba8, 2015-10-24 (annotated)

Committer:
kysiki
Date:
Sat Oct 24 17:44:30 2015 +0000
Revision:
1:3741bc0fbba8
Parent:
0:5f1670338bef 
8bit, 16bit, 32bit???

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kysiki 0:5f1670338bef 1 #include "ShiftReg.h"
kysiki 0:5f1670338bef 2 #include "mbed.h"
kysiki 1:3741bc0fbba8 3
kysiki 1:3741bc0fbba8 4 template <class T_bit>
kysiki 1:3741bc0fbba8 5 ShiftReg<T_bit>::ShiftReg(PinName dataPin, PinName stbPin,
kysiki 0:5f1670338bef 6 PinName clkPin, PinName clrPin)
kysiki 0:5f1670338bef 7 :
kysiki 0:5f1670338bef 8 DATA(dataPin),
kysiki 0:5f1670338bef 9 STB(stbPin),
kysiki 0:5f1670338bef 10 CLK(clkPin),
kysiki 0:5f1670338bef 11 CLR(clrPin)
kysiki 0:5f1670338bef 12 {
kysiki 0:5f1670338bef 13 DATA = 1;
kysiki 0:5f1670338bef 14 STB = 1;
kysiki 0:5f1670338bef 15 CLK = 1;
kysiki 0:5f1670338bef 16 CLR = 1;
kysiki 0:5f1670338bef 17 }
kysiki 1:3741bc0fbba8 18
kysiki 1:3741bc0fbba8 19 template <class T_bit>
kysiki 1:3741bc0fbba8 20 void ShiftReg<T_bit>::send_data(T_bit data, uint8_t size) {
kysiki 1:3741bc0fbba8 21 shiftOut(data, size);
kysiki 0:5f1670338bef 22 wait_us(1);
kysiki 0:5f1670338bef 23 #ifdef HC595
kysiki 0:5f1670338bef 24 STB = 0;
kysiki 0:5f1670338bef 25 wait_us(1);
kysiki 0:5f1670338bef 26 STB = 1;
kysiki 0:5f1670338bef 27 #elif NJU3711
kysiki 0:5f1670338bef 28 STB = 1;
kysiki 0:5f1670338bef 29 wait_us(1);
kysiki 0:5f1670338bef 30 STB = 0;
kysiki 0:5f1670338bef 31 #else
kysiki 0:5f1670338bef 32 printf("not support\n");
kysiki 0:5f1670338bef 33 #endif
kysiki 0:5f1670338bef 34 wait_us(1);
kysiki 0:5f1670338bef 35 }
kysiki 0:5f1670338bef 36
kysiki 1:3741bc0fbba8 37 template <class T_bit>
kysiki 1:3741bc0fbba8 38 void ShiftReg<T_bit>::shiftOut(T_bit data, uint8_t size) {
kysiki 1:3741bc0fbba8 39 for(int i = 0; i < size; i++) {
kysiki 0:5f1670338bef 40 DATA = (data & (1 << i));
kysiki 0:5f1670338bef 41 CLK = 0;
kysiki 0:5f1670338bef 42 CLK = 1;
kysiki 0:5f1670338bef 43 }
kysiki 1:3741bc0fbba8 44 }
kysiki 1:3741bc0fbba8 45 template class ShiftReg<uint8_t>;
kysiki 1:3741bc0fbba8 46 template class ShiftReg<uint16_t>;
kysiki 1:3741bc0fbba8 47 template class ShiftReg<uint32_t>;