IDK MSD-804FD Series Command Manual page 123

@GBV Get bitmap memory usage
Command @GBV
format
Return value
@GBV, num, block_1 (, block_2
format
Parameter num ： Number of division
1 to 4 [Default]: 1
block_1-4: Block size of each memory actually used
0 to 128 [Default]: 12
Example Send
Receive
Related info. 8.16.8 Dividing memory
@SBN Set bitmap number
Command @SBN, bitmap
format
@SBN, bitmap
Return value
format
Parameter bitmap : Bitmap number
1 = Bitmap 1 [Default], 2 = Bitmap 2, 3 = Bitmap 3, 4 = Bitmap 4
Only the divide number or smaller numbers can be specified.
If you use software such as terminal software, specify the destination bitmap
first
Example Send
Receive
Related info. 8.16.1 Bitmap transfer
@GBN Get bitmap number
Command @GBN
format
Return value @GBN, bitmap
format
Parameter bitmap : Bitmap number
1 = Bitmap 1 [Default], 2 = Bitmap 2, 3 = Bitmap 3, 4 = Bitmap 4
Example Send
Receive
Related info. 8.16.1 Bitmap transfer
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@GBV Get actual usage state of bitmap memory.
@GBV,2,32,0
Bitmap 1: 32 sectors (2,097,152 bytes) are used;
Bitmap 2: not registered.
@SBN,2 Register image to Bitmap 2 (The bitmap file sent next
is registered to Bitmap 2)
@SBN,2 Terminated normally.
@GBN Get bitmap number to be registered.
@GBN,2 Bitmap 2.
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MSD-804FD Users Guide (Command Guide)