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[修改]crc32校验逻辑

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This commit is contained in:
thesai 2024-07-24 18:27:41 +08:00
parent ccaf53ec67
commit 7e38a912d4
1 changed files with 20 additions and 20 deletions
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40
third_party/message/rssp_code.go vendored
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@ -8,9 +8,9 @@ var (
// crc16多项式为G(x)=X16+X11+X4+1
RSSP_I_CRC16 = crc.NewHash(&crc.Parameters{Width: 16, Polynomial: 0x0811, Init: 0x0, ReflectIn: true, ReflectOut: true, FinalXor: 0x0})
// 通道1 crc32多项式为0x100d4e63
RSSP_I_C1_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x100d4e63, Init: 0x0, ReflectIn: true, ReflectOut: true, FinalXor: 0x0})
RSSP_I_C1_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x100d4e63, Init: 0x0, ReflectIn: false, ReflectOut: true, FinalXor: 0x0})
// 通道2 crc32多项式为0x8ce56011
RSSP_I_C2_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x8ce56011, Init: 0x0, ReflectIn: true, ReflectOut: true, FinalXor: 0x0})
RSSP_I_C2_CRC32 = crc.NewHash(&crc.Parameters{Width: 32, Polynomial: 0x8ce56011, Init: 0x0, ReflectIn: false, ReflectOut: true, FinalXor: 0x0})
)
// Rssp_I_Crc16计算
@ -20,27 +20,27 @@ func Rssp_I_Crc16(data []byte) uint16 {
// 通道1的crc32
func Rssp_I_Crc32C1(data []byte) uint32 {
newData := reverseBitsInByte(data)
return uint32(RSSP_I_C1_CRC32.CalculateCRC(newData))
//newData := reverseBitsInByte(data)
return uint32(RSSP_I_C1_CRC32.CalculateCRC(data))
}
// 通道2的crc32
func Rssp_I_Crc32C2(data []byte) uint32 {
newData := reverseBitsInByte(data)
return uint32(RSSP_I_C2_CRC32.CalculateCRC(newData))
//newData := reverseBitsInByte(data)
return uint32(RSSP_I_C2_CRC32.CalculateCRC(data))
}
func reverseBitsInByte(data []byte) []byte {
var result byte
newData := make([]byte, len(data))
for i, b := range data {
result = 0
for i := 0; i < 8; i++ {
result <<= 1
result |= b & 1
b >>= 1
}
newData[i] = result
}
return newData
}
//func reverseBitsInByte(data []byte) []byte {
// var result byte
// newData := make([]byte, len(data))
// for i, b := range data {
// result = 0
// for i := 0; i < 8; i++ {
// result <<= 1
// result |= b & 1
// b >>= 1
// }
// newData[i] = result
// }
// return newData
//}