User guide

SERIAL RS485 COMUNICATION
PAGE 39AMIS-DMA1 INSTALLATION & OPERATION MANUAL
CODE DESCRIPTION
10H
Failure to convert command code (CMD). It could contain characters which are outside the representation
of a hexadecimal value.
The permitted values are: ‘a’ .. ‘f’ ‘A’ …. ‘F’ ‘0’….’9’
11H Failure to convert the value contained in ‘DATA’ into a number. It could contain characters which are outside
the representation of a hexadecimal value.
The permitted values are: ‘a’ .. ‘f’ ‘A’ …. ‘F’ ‘0’….’9’
12H Failure to convert the CheckSum (CHK). It could contain characters which are outside the representation
of a hexadecimal value.
The permitted values are: ‘a’ .. ‘f’ ‘A’ …. ‘F’ ‘0’….’9’
13H CheckSum wrong
14H Reserved error
20H Wrong value in the parameter of the command SET_Volume. It could be more than the maximum permitted value
21H Wrong value in the parameter of the command SET_Treble. It could be more than the maximum permitted value
22H Wrong value in the parameter of the command SET_Bass. It could be more than the maximum permitted value
23H Wrong value in the parameter of the command SET_Loudness. It could be more than the maximum permitted value
30H The command PLAY cannot be processed because the fl ash memory is missing
31H The command PLAY (excluding PLAY File 2) cannot be processed because DMA1 is already playing. To solve
the problem, fi rst send the command STOP, or else use the command PLAY_File_2 which automatically stops
any fi le being played
32H The fi le requested via the command PLAY_File or PLAY_File_2 has not been found.
The four characters inserted as an argument for these commands must correspond exactly to the name of the fi le
intend to play, except for the extension.
E.g.: the command ENQ + 00501234 requires the playing of the fi le 1234.mp3 on DMA1 with address 00
33H Failure to play the requested fi le. The fi le could be corrupt
9.17 Error codes
The following table lists all the error codes which the DMA1 delivers
together with the NAK packet if problems are found.