Diff: main.cpp

Revision:

0:5a2173aca83d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Apr 26 22:45:05 2022 +0000
@@ -0,0 +1,58 @@
+#include"mbed.h"
+
+DigitalOut x(p21);//ser
+DigitalOut a(p22);//rclk
+DigitalOut b(p23);//srclk
+DigitalOut c(p24);//srclr
+Serial pc(USBTX,USBRX);
+
+void srclk(){
+    b=1; wait_us(1); b=0;
+}
+
+void output(char outputdata,long time){
+    char t0,t1,t2,t3,t4,t5,t6,t7;
+    
+    t0=outputdata>>7;//上位ビット
+    t1=outputdata<<1; t1/=128;
+    t2=outputdata<<2; t2/=128;
+    t3=outputdata<<3; t3/=128;
+    t4=outputdata<<4; t4/=128;
+    t5=outputdata<<5; t5/=128;
+    t6=outputdata<<6; t6/=128;
+    t7=outputdata<<7; t7/=128;
+    
+    for(long i=0; i<time/20; i++){
+        srclk(); x=1; c=1;
+        srclk(); x=0; c=1;
+        
+        a=(int)t0; wait_us(1); a=0; srclk();
+        a=(int)t1; wait_us(1); a=0; srclk();
+        a=(int)t2; wait_us(1); a=0; srclk();
+        a=(int)t3; wait_us(1); a=0; srclk();
+        a=(int)t4; wait_us(1); a=0; srclk();
+        a=(int)t5; wait_us(1); a=0; srclk();
+        a=(int)t6; wait_us(1); a=0; srclk();
+        a=(int)t7; wait_us(1); a=0;
+        
+        c=0; wait_us(1); c=1;
+        srclk();
+        x=1; c=1; srclk(); 
+        x=0; c=1; //20usかかる
+    }
+    pc.printf("%d,%d,%d,%d,%d,%d,%d,%d\r\n",(int)t0,(int)t1,(int)t2,(int)t3,(int)t4,(int)t5,(int)t6,(int)t7);
+}
+
+int main(){
+    x=0; a=0; b=0; c=0;
+    while(1){
+        output(0x80,612.5*2);
+        output(0x40,612.5*2);
+        output(0x20,612.5*2);
+        output(0x10,612.5*2);
+        output(0x08,612.5*2);
+        output(0x04,612.5*2);
+        output(0x02,612.5*2);
+        output(0x01,612.5*2);
+    }
+}
\ No newline at end of file