Remi Beges
First class data visualization and communication library with embedded devices. Code is maintained at github.com/Overdrivr/Telemetry
Dependents: telemetry_car_demo telemetry_demo_FRDM-TFC telemetry_example_01 telemetry_indexed_data_demo ... more
Diff: c_api/crc16.c
- Revision:
- 6:f5e1b079bffd
- Parent:
- 5:cd94bb58e096
- Child:
- 7:d224bddd5405
--- a/c_api/crc16.c Wed Mar 09 12:15:13 2016 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,34 +0,0 @@
-#include "crc16.h"
-
-uint16_t crc16(uint8_t* data, uint32_t len)
-{
- uint16_t rem = 0;
- uint16_t i=0;
- for(i = 0 ; i < len ; i++)
- {
- rem = crc16_recursive(data[i],rem);
- }
- return rem;
- }
-
-uint16_t crc16_recursive(uint8_t byte, uint16_t remainder)
-{
- uint16_t n = 16;
-
- remainder = remainder ^ (byte << (n-8));
- uint16_t j = 0;
- for(j = 1 ; j < 8 ; j++)
- {
- if(remainder & 0x8000)
- {
- remainder = (remainder << 1) ^ 0x1021;
- }
- else
- {
- remainder = remainder << 1;
- }
- remainder &= 0xffff;
- }
-
- return remainder;
-}