Untung Haryono
/
ShiftOut
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Fork of
ShiftOut
by 
Ollie Milton
Diff: ShiftOut.h
- Revision:
- 0:a4f4842715fd
- Child:
- 1:4c2379445f72
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ShiftOut.h Mon May 26 14:57:22 2014 +0000
@@ -0,0 +1,40 @@
+#ifndef SHIFTOUT_H
+#define SHIFTOUT_H
+
+#include <mbed.h>
+
+class ShiftOut {
+
+ public :
+
+ ShiftOut(PinName clk, PinName data, PinName latch, int8_t registerCount = 8) {
+ clkout = new DigitalOut(clk);
+ dataout = new DigitalOut(data);
+ latchout = new DigitalOut(latch);
+ this->registerCount = registerCount;
+ }
+
+ ~ShiftOut() {
+ delete clkout;
+ delete dataout;
+ delete latchout;
+ }
+
+ void write(int8_t data) {
+ *latchout = 0;
+ for(int i = registerCount - 1; i >= 0; i--){
+ *clkout = 0;
+ *dataout = (data & (1 << i)) != 0;
+ *clkout = 1;
+ }
+ *latchout = 1;
+ }
+
+ private :
+ DigitalOut *clkout;
+ DigitalOut *dataout;
+ DigitalOut *latchout;
+ int8_t registerCount;
+};
+
+#endif
\ No newline at end of file