crc16

介绍

查表法实现crc16算法.参数模型是CRC-16/MODBUS 多项式是8005。

API

"""
计算校验和.参数模型是CRC-16/MODBUS 多项式是8005,返回值是高字节在前的16位校验值
"""
def checksum(data: bytearray) -> int

示例

class _UnitTest(unittest.TestCase):
    def test_case1(self):
        data = bytearray([1, 2, 3, 4, 5, 6, 7, 8, 9])
        self.assertEqual(crcmodbus.checksum(data), 0x0eb2)

    def test_case2(self):
        data = bytearray([3, 1, 4])
        self.assertEqual(crcmodbus.checksum(data), 0x8193)

    def test_case3(self):
        data = bytearray([0x19, 0x89, 0x56])
        self.assertEqual(crcmodbus.checksum(data), 0x47a9)


if __name__ == '__main__':
    suite = unittest.TestSuite()
    suite.addTest(_UnitTest('test_case1'))
    suite.addTest(_UnitTest('test_case2'))
    suite.addTest(_UnitTest('test_case3'))
    runner = unittest.TextTestRunner()
    runner.run(suite)

Metadata

Release files for crcmodbus 1.3

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for crcmodbus 1.3
File	Size	Uploaded	Provenance
crcmodbus-1.3.tar.gz	2.6 kB	Feb 19, 2021	Without provenance	Details

Release files / crcmodbus-1.3.tar.gz

Download URL	crcmodbus-1.3.tar.gz
Size	2.6 kB
Tags	Source
SHA-256 checksum How to use checksums	`4d96b8e7304c1eecf8f2d918c9f918ca6c1de5eaa32f9afb65baa390fd478f4d`
BLAKE2b-256 checksum How to use checksums	`69d002851471a63f7e84195e73390e7dfd5a69bb7b865569e88e82fc79ee1f87`
Upload date	Feb 19, 2021
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/3.3.0 pkginfo/1.7.0 requests/2.25.1 setuptools/49.2.1 requests-toolbelt/0.9.1 tqdm/4.57.0 CPython/3.8.7`

Security for crcmodbus 1.3

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