28
UM001
Error Codes
Error Name
Code
Description
Hard Fault
1
If this error occurs, then the firmware on the VN-100 has experienced a
hard fault exception. To recover from this error the processor will force
a restart, and a discontinuity will occur in the serial output. The
processor will restart within 50 ms of a hard fault error.
Serial Buffer Overflow
2
The processor’s serial input buffer has experienced an overflow. The
processor has a 256 character input buffer.
Invalid Checksum
3
The checksum for the received command was invalid.
Invalid Command
4
The user has requested an invalid command.
Not Enough Parameters
5
The user did not supply the minimum number of required parameters
for the requested command.
Too Many Parameters
6
The user supplied too many parameters for the requested command.
Invalid Parameter
7
The user supplied a parameter for the requested command which was
invalid.
Invalid Register
8
An invalid register was specified.
Unauthorized Access
9
The user does not have permission to write to this register.
Watchdog Reset
10
A watchdog reset has occurred. In the event of a non-recoverable error
the internal watchdog will reset the processor within 50 ms of the error.
Output Buffer Overflow
11
The output buffer has experienced an overflow. The processor has a
2048 character output buffer.
Insufficient Baud Rate
12
The baud rate is not high enough to support the requested
asynchronous data output at the requested data rate.
Error Buffer Overflow
255
An overflow event has occurred on the system error buffer.
