Diff: shitreg.cpp

Revision:

0:b9fbca7b029d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/shitreg.cpp	Sat Dec 03 07:17:34 2016 +0000
@@ -0,0 +1,69 @@
+#include "mbed.h"
+//#include <bitset>
+#include "arduino.h"
+
+//using namespace mbed::mbed;
+
+//DigitalOut lat(P8_11);
+//DigitalOut dat(P8_13);
+//DigitalOut clk(P4_4);
+Serial pc(USBTX, USBRX); // tx, rx
+DigitalOut pins[1][3] = {{P8_11,P8_13,P4_4}};
+DigitalIn ser(P2_14);
+DigitalOut clk_inh(P4_5);
+DigitalOut clk_2(P4_7);
+DigitalOut SH_LD(P4_6); 
+
+int delay_time;
+int i;
+uint8_t init;
+uint8_t data_read;
+void shift(uint8_t data, int delay_time,int row_no){
+    DigitalOut lat = pins[row_no][0];
+    DigitalOut dat = pins[row_no][1];
+    DigitalOut clk = pins[row_no][2];
+    clk = 0;
+    dat = 0;
+    lat = 0; 
+    SH_LD = 1;
+    clk_inh = 1;
+    clk_2 = 1;
+    data_read = 0x00;
+    init = 0x80;
+    
+    for(i=0;i<8;i++){
+        dat = data & (init>>i);
+        clk = 1;
+        clk = 0;
+        }
+    lat = 1;
+    lat = 0;
+    
+}
+
+uint8_t shift_par(int clk_time, int load_time){
+    SH_LD = 0;
+    wait_us(load_time);
+    SH_LD = 1;
+    wait_us(load_time);
+    data_read = (data_read<<1)|ser;
+    clk_inh = 0;
+    
+    for(i=0;i<8;i++)
+    {
+        data_read = (data_read<<1)|ser;                                 
+        clk_2 = 0;
+        clk_2 = 1;
+        
+    }
+    
+    return data_read;
+    
+    }
+
+int main() {
+    
+    shift(0x4F, 0, 0);
+    wait_ms(500);
+    pc.printf("%c", shift_par(0,0));
+}
\ No newline at end of file