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# = ASCII pound character (0x23)
n = ASCII decimal digit ranging from 1 to 9. This value specifies the
number of digit elements, d..d, that follow.
d..d = ASCII decimal integer that specifies the number of data words that
follow.
(DAW) = Data Word. Two 8-bit data bytes, low byte followed by high byte.
The data is transmitted in a row and column sequence beginning at the display’s upper left-hand
corner, proceeding row by row and ending at the lower right-hand corner.
The following example describes how the host controller requests the current frame and receives
the data. The received data frame has the dimensions of 64 X 60. Therefore, the LBA-PC
transmits 3840 data words (pixels), or 7680 bytes to the host controller.
Host sends
:RDD?(^END)
LBA-PC sends
RDD
FrameNumber=9;
Width=64;
Height=60;
#43840(DAW)…(DAW)(^END)
The following example describes how the host controller requests and receives data in frame
number 17. The LBA-PC sends the 32 X 30 frame as 960 data words or 1920 bytes.
Host sends
:RDD?
FrameNumber=17(^END)
LBA-PC sends
RDD
FrameNumber=17;
Width=32;
Height=30;
#3960(DAW)…(DAW)(^END)
10.6.2 Transferring Data Files
Operator’s Manual LBA-PC
190
Four commands allow you to download, upload, read or write data files. These commands are: