Chapter 8. Files
131
■
Restrictions on Input/Output of Data Files
No
INPUT#
,
LINE
INPUT#
, or
PRINT#
statement or
INPUT$
function can access data
files. To access data files, use a
PUT
or
GET
statement.
■
Drive Defragmentation
During downloading, a delay of a few seconds (response delay from the BHT) may occur
according to the user area condition.
To eliminate the delay, defragment the drive for the size required for downloading before-
hand. Doing so will also reduce the device open time in communications. Defragmentation
before downloading is recommended.
If there is no specified size of the empty area in the drive, it is necessary to defragment the
whole empty area.
In complicated write operation, any of the following symptoms may be caused in units of a
few seconds. If such occurs frequently, defragment the drive.
- The beeper sound is prolonged.
- Keys do not work.
- No bar code entry is possible.
- Switching the LCD screen is delayed.
- No data can be received.
- Timeout by the
TIMEA/TIMEB/TIMEC
is delayed.
The
OUT
statement may defragment the drive. In the
OUT
statement, you may specify the
size of the empty area to be defragmented in units of 4 kilobytes, starting with 4 kilobytes
up to the maximum size of the user area.
During drive defragmentation, user programs will be halted. Upon completion of defrag-
mentation, they will resume operation.
In the
OUT
statement, you may also select whether a bar graph showing the progress of
defragmentation will be displayed on the LCD. The bar graph, if selected, will disappear
after completion of defragmentation and the previous screen will come back.
For details about defragmentation with
OUT
statement, refer to Appendix D, "I/O Ports."
Summary of Contents for BHT-BASIC 100 SERIES
Page 1: ......
Page 161: ...153 Chapter 10 Sleep Function CONTENTS 10 1 Sleep Function 154...
Page 163: ...155 Chapter 11 Resume Function CONTENTS 11 1 Resume Function 156...
Page 173: ...165 Chapter 13 Backlight Function CONTENTS 13 1 Backlight Function 166...
Page 249: ...241 Example CLOSE IF kyIn Y THEN KILL Master Dat END IF Reference Statements CLFILE...
