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Appendix C
RB - Blank Check Megabyte #
Purpose:
Format:
Range:
Description:
Example 1:
>RB 0
[BEGIN BLANK CHECK]
Checking: 40 MB
MB #:
1
0 +:
-
10 +:
-
20 +:
-
30 +:
-
[END BLANK CHECK]
Example 2:
>RB5
Megabyte #5: Blank
>RB 34
Megabyte #36: Used
page C-38
Verifies recorder memory is fully erased (blank).
RBnnn
nnn = 000 to 999 (0 = check all recorder memory)
RB lets you check the status of recorder memory. RB tells
you whether the selected megabyte of memory is BLANK (no
data stored) or USED (data stored).
RB0 checks the entire recorder:
(- = Blank, # = Data)
2
3
4
5
6
7
8
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-
-
-
-
-
-
-
-
-
-
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#
-
-
-
-
-
-
-
-
-
-
-
-
#
-
-
In the above example, megabytes #17 and #36 contain data.
On 40-MB UV EPROM recorders, each board contains 2 MB,
so board 9 (17 MB / 2 MB = 8.5 = 9 rounded up) located in
slot J8 and board 18 (36 MB / 2 MB = 18) located in slot J16
both need further erasure. NOTE: If there are boards missing
from the UV EPROM recorder, then the order in which mem-
ory is checked is sequential - slot J0 to slot J19).
In PCMCIA recorders, RB0 shows the first x MB used, where
x = MB used per RS-command. Remaining MB fields are
blank.
Different RBnnn values display the results for the selected
megabyte.
Blank checking 1 Mb of memory can take up to 30 seconds,
so there may be a delay before blank-check results are given.
If the ADFM is in binary mode (CFxx1xx), RB returns a mes-
sage consisting of four binary bytes, where:
Byte 2 = 06h or 15h; blank or used, respectively;
Byte 3 = [CSUMLO]; LSB of 16-bit checksum of bytes 1-2;
Byte 4 = [CSUMHI]; MSB of 16-bit checksum of bytes 1-2.
9 10
-
-
-
-
-
-
-
-
MGD Technologies, Inc.
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