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codes (3)
rn8209.c
no vote
Rn8209 measurement chip reference program rn8209 can measure active power, reactive power, active energy, reactive energy, and provide two independent active power and RMS, voltage RMS, line frequency, zero crossing interruption, etc. at the same time, it can realize flexible anti stealing scheme. Rn8209 supports all digital gain, phase and offset correction. The active power pulse is output from pf pin, and the reactive power pulse / user-defined power pulse frequency is output from QF pin.
leslie-lin
2018-05-30
1
1
Rn8209 serial communication programming
no vote
Rn8209 metering chip, collect voltage and current, calculate electricity, active power, reactive power, support anti stealing function, rn8209 serial communication, code provided by the original factory, can be downloaded for direct use.
leslie-lin
2018-05-28
0
1
RTC experiment
no vote
Real time clock (RTC) is the pulse generated by the clock circuit composed of crystal oscillator and related circuits on the PC motherboard. After the frequency conversion of 8254 circuit, RTC generates an OS (system) clock TSC with a lower frequency. Each CPU cycle of the system clock is plus one, and each system clock is initialized by RTC at the beginning of the system. 8254 itself also needs to have its own driver clock (PIT).
leslie-lin
2018-05-28
0
1
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