Vdat = value/4096 V
Vdat_12V_reg = value /4096 * 24.5V
Vdat_5V_reg = value / 4096x11 V
Vdat_2V5_reg = value / 4096x10 V
Vdat_APD = 516.65*(value)/4096-465.8 V(negative value)
Note:【Value】is the decimal value calculated after the byte at the corresponding position, in big-endian mode,
with the high order first and the low order last.
Register description:
(1) temperature2, temperature3, temperature4 are temperatures of other boards. Temperature
calculation formula:
Temperature2&3&4=200*（value）/4096-50
temperature1, temperature5 are the temperature of the top board/bottom board FPGA chip
respectively. The temperature value is composed of 2 bytes, and the calculation formula is:
Temperature1&5=503.975*(value)/4096-273.15
(2) byte18 is the GPS signal input status register gps_st. This register uses 3 bits to indicate whether
the currently connected PPS signal and GPRMC signal are valid, and to indicate whether the current
system time is the local count time of the sensor or the synchronized UTC time. The bit definitions
are as follows:
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