Revision as of 11:42, 27 November 2019

CRC calculation

The CRC used is the CRC32-CCITT polynomial.

Normal form: 0x04C11DB7
Reversed form: 0xEDB88320 (used by J-Flash)

Please note, that the initial CRC used for the calculation is 0x00000000 (some calculators use 0xFFFFFFFF).

Further information regarding this can be found here:

SEGGER Knowledge Base: Explaining CRC
Wikipedia: https://en.wikipedia.org/wiki/Cyclic_redundancy_check#Standards_and_common_use (table entry for CRC-32)
J-Flash User Guide: UM08003 chapter "9.1 CRC of current data file"

J-Flash and Flasher are using a CRC. The CRC used is the CRC32-CCITT polynomial.

Normal form: 0x04C11DB7
Reversed form: 0xEDB88320 (used by J-Flash)

Please note, that the initial CRC used for the calculation is 0x00000000 (some calculators use 0xFFFFFFFF).

Further information regarding this can be found here:

SEGGER Knowledge Base: Explaining CRC
Wikipedia: https://en.wikipedia.org/wiki/Cyclic_redundancy_check#Standards_and_common_use (table entry for CRC-32)
J-Flash User Guide: UM08003 chapter "9.1 CRC of current data file"

@@ Line 1: / Line 1: @@
+=CRC calculation=
+The CRC used is the CRC32-CCITT polynomial.
+ Normal form: 0x04C11DB7
+ Reversed form: 0xEDB88320 (used by J-Flash)
+Please note, that the initial CRC used for the calculation is 0x00000000 (some calculators use 0xFFFFFFFF).
+Further information regarding this can be found here:
+* SEGGER Knowledge Base: Explaining [[CRC]]
+* Wikipedia: https://en.wikipedia.org/wiki/Cyclic_redundancy_check#Standards_and_common_use (table entry for CRC-32)
+* J-Flash User Guide: UM08003 chapter "9.1 CRC of current data file"
 J-Flash and Flasher are using a [[CRC]].
 The CRC used is the CRC32-CCITT polynomial.