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3 DETAILS OF FUNCTION
3.1 C Intelligent Function Module Dedicated Functions
CITL_UnmountMemoryCard
This function unmounts the SD memory card inserted to a C intelligent function module.
■ Format
short CITL_UnmountMemoryCard (short sDrive)
■ Argument
■ Description
• This function unmounts the drive specified to the target drive (sDrive).
• The CARD RDY LED is flashing, which indicates that process of unmounting the memory card is in progress, and later
upon successful completion, the CARD RDY LED turns OFF.
• The CITL_UnmountMemoryCard function is available when the status of the SD memory card is "Inserted (mounted)".
(The status of the SD memory card can be checked by the CITL_GetUnitStatus function.)
• When the status of the SD memory card has been already unmounted, this function ends normally without processing.
Before calling the CITL_UnmountMemoryCard function, create a program so that accessing to the target drive is stopped and
all files are closed. Otherwise, data may be corrupted or a file system error may occur.
■ Return value
■ Relevant function
Page 43 CITL_GetUnitStatus
Page 44 CITL_MountMemoryCard
Argument Name Description IN/OUT
sDrive Target drive Specify a target drive.
(When 'Reserved' is specified, this function ends normally without
processing.)
• 1: SD memory card
• Others: Reserved
IN
Return value Description
0 (0000H) Normal
Other than 0 (0000H) Error
For details on the error, refer to the following chapter.
Page 108 ERROR CODE LIST
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