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This commit is contained in:
Nanosonde 2020-07-15 16:33:27 +02:00
parent 255ee7f1c4
commit fb5fb42d8a
2 changed files with 10 additions and 10 deletions
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10
src/knx/bits.cpp
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@ -107,6 +107,16 @@ uint64_t sixBytesToUInt64(uint8_t* data)
return l; return l;
} }
// The CRC of the Memory Control Block Table Property is a CRC16-CCITT with the following
// parameters:
// Width = 16 bit
// Truncated polynomial = 1021h
// Initial value = FFFFh
// Input date is NOT reflected.
// Output CRC is NOT reflected.
// No XOR is performed on the output CRC.
// EXAMPLE The correct CRC16-CCITT of the string ‘123456789’ is E5CCh.
uint16_t crc16Ccitt(uint8_t* input, uint16_t length) uint16_t crc16Ccitt(uint8_t* input, uint16_t length)
{ {
uint32_t polynom = 0x1021; uint32_t polynom = 0x1021;

10
src/knx/router_object_filtertable.cpp
View File

@ -126,16 +126,6 @@ void RouterObjectFilterTable::functionRouteTableControl(bool isCommand, uint8_t*
// octet_address = GA_value div 8 // octet_address = GA_value div 8
// bit_position = GA_value mod 8 // bit_position = GA_value mod 8
// The CRC of the Memory Control Block Table Property is a CRC16-CCITT with the following
// parameters:
// Width = 16 bit
// Truncated polynomial = 1021h
// Initial value = FFFFh
// Input date is NOT reflected.
// Output CRC is NOT reflected.
// No XOR is performed on the output CRC.
// EXAMPLE The correct CRC16-CCITT of the string ‘123456789’ is E5CCh.
if (isCommand) if (isCommand)
{ {
switch(srvId) switch(srvId)