Campbell CR6 Series, Operator'S Manual

Page: 496 / 690

Section 8. Operation
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When a data table is sent to a memory card, a data table of the same name in
SRAM is used as a buffer for transferring data to the card. When the card is
present, the Status table will show the size of the table on the card. If the card is
removed, the size of the table in SRAM is shown.
When a new program is compiled that sends data to the memory card, the CR6
checks if a card is present and if the card has adequate space for the data tables. If
no card is present, or if space is inadequate, the CR6 will warn that the card is not
being used. However, the CRBasic program runs anyway and data are stored to
SRAM. When a card is inserted later, data accumulated in the SRAM table are
copied to the card.
Formatting Memory Cards
The CR6 accepts memory cards formatted as FAT16 or FAT32; however, FAT32
is recommended. Otherwise, some functionality, such as the ability to manage
large numbers of files (>254) is lost. The CR6 formats memory cards as FAT32
Because of the way the FAT32 card format works, you can avoid long CR6
compile times with a freshly formatted card by first formatting the new card on a
PC, then copy a small file to the card from the PC, and then delete the file with
the PC. When the small file is copied to the card, the PC updates a sector on the
card that which allows the CR6 program to compile faster. This only needs to be
done once when the card is formatted. If you have the CR6 update the card sector,
the first CR6 program compile with the card can take as long as 30 minutes. After
that, compile times will be normal.
Memory Card States
CardStatus CardBytesFree CompileResults LED Status
Card OK >0 Formatted card inserted, powered up.
>0 Solid green for 20 s Card still inserted, but removal button has been
pressed.
>0
Program contains
CardOut()
or
TableFile()
with Option 64 . Card inserted before power up.
No Card Present -1 Powered up, no card present.
-1 Card ejected / physically removed
•
-1
Solid orange
Program contains CardOut() or TableFile()
with Option 64 . Card not present at power up.
Initializing Table
Files!
Dim / fast flashing
orange
Program contains CardOut() or TableFile()
with Option 64 . Card not present at power up.
Card inserted after power up. If all goes well,
CardStatus will change to Card OK and
CardBytesFree
(p. 625)
will be >0.