Multimeter ICs/Cyrustek ES51919

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The Cyrustek 51919 is used in LCR meters. The chip takes no commands, and continually outputs 17-byte packets structured as described below.

Byte Description
0-1 Header, always 0x00 0x0d
2 Flags
0 hold enabled
1 reference shown (in delta mode)
2 delta mode
3 calibration mode
4 sorting mode
5 LCR mode
6 auto mode
7 parallel measurement (vs. serial)
3 Configuration
4 Tolerance
5-9 Primary measurement
10-14 Secondary measurement
15-16 Footer, always 0x0d 0x0a