参考下工程师的回复：
A BOR would clear all of the RTC data. I would start with our code example to make sure everything is working properly, then do a delta of your solution to the code example to see what's going on.
Also, make sure you are handling the LOCKBAK…
您好，In the example code RX_data is an unsigned char type, so you may need to add some additional conversions to get the data into a float type. The example code for this function also returns as an unsigned short, not a float.
See below, taken from Section…
