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Three functions, including Diagnostics, Loopback Test and Ping Test are contained
in this function folder for device self-diagnostics. Each of them will be described in
detail orderly in the following sections.
Function name:
Diagnostics
Function description:
Diagnostics function provides a set of basic system diagnosis. It let users
know that whether the system is health or needs to be fixed. The basic s ystem
check includes EEPROM test, UART test, DRAM test and Flash test.
Fig. 3-64
Diagnostics
Loo
p
back Test
Dia
g
nostics
Ping Test