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Serial Transmit Buffer
Overflow
Serial Receive Buffer
Overflow
Invalid OP Code
Watchdog reset
GFK-2522A
Error
When the serial data rate received
from the client application is faster
than device transmit rate.
When the serial data rate received
from serial input device is faster than
device transmit rate to the client
application.
When processor fetches invalid OP
code.
When watchdog timer elapses.
Possible Causes
Error Handling
Station Portal Behavior
Blink code "21"
Blink the Top LED twice ("2")
Wait for 2sec (Gap between "2"
and "1").
Blink the Top LED once ("1").
Wait for 5sec (Gap between
error codes).
Repeat the above four steps.
Blink code "22"
Blink the Top LED twice ("2").
Wait for 2sec (Gap between "2"
and "2").
Blink the Top LED twice ("2").
Wait for 5sec (Gap between
error codes)
Repeat the above four steps.
No Blink code.
System will reset and go to
default state.
No Blink code.
System will reset and go to
default state.
17
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