Revision1.30
DCM390 Serial Interface Specification
Date 25.Apr.’06
17 page of 40
D&M
2.6.4 REQUEST ERROR CODE command
With this command the host can get ERROR CODE from the device in case of something wrong.
1) Command format
Byte/bit
7
6
5
4
3
2
1
0
0 STX
(0x02)
1
Command code (‘2’)
2 Reserve
(0x00)
3 Reserve
(0x00)
4 Reserve
(0x00)
5 Reserve
(0x00)
6 ETX
(0x03)
7 BCCH
(high-level)
8 BCCL
(low-level)
Table 15. Request Error Code
command
2) Answer format
Byte/bit
7
6
5
4
3
2
1
0
0 STX
(0x02)
1 Reply
code
(‘2’)
2
Answer code (Table 3)
3
1st error code (Table 17)
4
2nd error code (Table 17)
5 ETX
(03h)
6 BCCH
(high-level)
7 BCCH
(low-level)
Table 16. Request Error Code
answer
Error code
No.
1st
2nd
Detail
1 0x20
0x20
Loading
error
2 0x21
0x21
Loading switch error
3 0x22
0x22
Focus servo error
4 0x23
0x23
Tracking servo error
5 0x24
0x24
Can't adjust
FOCUS
offset value for servo circuit
6
0x25
0x25
Can't adjust TRACKING offset value for servo circuit
7
0x26
0x26
Can’t adjust
FOCUS
gain value for servo circuit
8
0x27
0x27
Can’t adjust TRACKING gain value for servo circuit
9
0x28
0x28
Focusing failed in playing or searching or pausing
10
0x29
0x29
During spinup, data of disc does not read
11
0x2A
0x2A
During play, data of disc does not read
12
0x2B
0x2B
Cannot read within a preset time period in TOC reading.
13
0x2C
0x2C
Sub code data does not read
12
0x2D
0x2D
Command error occurs
13
0x2E
0x2E
Focusing failed in scanning
Table 17. Request Error Code
answer
3) Special condition
If error code is empty, using ‘00’.
- Error code is the following.
- After error occurs, it receives only “OPEN /CLOSE” KEY.