51串行令牌格式 a51编译
Read data from serial port
and write into buffer DPTR pointed in XRAM if a data frame is
received and calculate the check sum
if a information frame is received return control byte only
亚定方程组求解:If serial correlation is found, you may have misspecified your model and
should return to your theory for a better representation of the data generating
process. This possibility is quite likely and should be taken seriously.