NavCom LAND-PAK Rev.N - Manual (Page 102)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only 100
Response
Record
Usage Command - No
Response - Yes Input: see table above;
Output: reports the current deleted file directory
Ref Message Field Description
Data
Type
Units Range Scale
Byte
Count
STX 02 (hex) U08 1
PRA1 99 (hex) U08 1
PRA2 66 (hex) U08 1
ID 7e(hex) U08 1
Length 0xXXXX U16 2
W1 Sub ID 0x04 U08 1
W2 0xff (response) U08 1
W3
Present Date
B15-B9: Years since
B8-B5:
B4-B0:
U16
years
month
day
0-65535
1-12
1-31
n+1980
2
W4
Present Time
B15-B11:
B10-B5:
B4-B0:
U16
hrs
min
sec
0-23
0-59
0-29
n/2
2
W5 Number of Files Deleted U16 2
W6
Result
B1=1: Incorrect “special” bits (W3) in
request
0: OK
B7=1: copy of B0 from W3 of request
U08 1
W7 Reserved U08 1
W8
Selected Date
B15-B9: Years since
B8-B5:
B4-B0:
U16
Years
Month
Day
1-12
1-31
1980
2
W9
Selected Time
B15-B11:
B10-B5:
B4-B0:
U16
Hours
Minut
es
Secon
ds
0-23
0-59
0-29
/2
2
CKSM Checksum U08 1
ETX 03 (hex) U08 1
0x05 – MMC Format
This command is used to format the file system. Any data already stored on the MMC will
be lost. The user must correctly set the control bits (W2) and security code (W4) in the
request message in order for the format to proceed. The user specifies a label (any label
longer than ten characters will be truncated by the file system).