Oscar Alvarado
/
calculoCRC
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Revision 0:38c92792be1d, committed 2019-06-07
- Comitter:
- oalvarado_dtk
- Date:
- Fri Jun 07 22:11:31 2019 +0000
- Commit message:
- calculo CRC sensor DU-180
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Jun 07 22:11:31 2019 +0000
@@ -0,0 +1,52 @@
+#include "mbed.h"
+
+Serial out(USBTX, USBRX);
+
+
+
+unsigned char crc8 (unsigned char data,unsigned char crc){
+
+unsigned char i = data ^ crc;
+ crc = 0;
+ if(i & 0x01) crc ^= 0x5e;
+ if(i & 0x02) crc ^= 0xbc;
+ if(i & 0x04) crc ^= 0x61;
+ if(i & 0x08) crc ^= 0xc2;
+ if(i & 0x10) crc ^= 0x9d;
+ if(i & 0x20) crc ^= 0x23;
+ if(i & 0x40) crc ^= 0x46;
+ if(i & 0x80) crc ^= 0x8c;
+ return crc;
+ }
+
+
+void main (void ){
+
+ unsigned char datos[8];
+ unsigned char crc= 0x00;
+ int cont = 0;
+ datos[0]= 0x3e;
+ datos[1]= 0x01;
+ datos[2]= 0x06;
+ datos[3]= 0x66;
+ datos[4]= 0x58;
+ datos[5]= 0x00;
+ datos[6]= 0x3f;
+ datos[7]= 0x5e;
+
+
+
+ for(cont = 0; cont< 8; cont++ ) {
+
+ crc= crc8(datos[cont],crc);
+
+
+ }
+
+ out.printf("EL CRC ES :%2X", crc);
+
+
+
+ }
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Jun 07 22:11:31 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/3a7713b1edbc \ No newline at end of file
