Section 8: TSP command reference
Model 2450 Interactive SourceMeter® Instrument Reference Manual
8-60
2450-901-01 Rev. B/September 2013
Example
file_num = file.open("testfile.txt",
file.MODE_WRITE)
if file_num != nil then
file.write(file_num,"This is my test file")
file.close(file_num)
end
Opens file
testfile.txt
for
writing. If no errors were found
while opening, writes
"This is
my test file"
and closes the
file.
Also see
None
file.read()
This function reads data from a file.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
No
Usage
fileContents
= file.read(
fileNumber
,
readAction
)
fileContents
The contents of the file based on the
readAction
parameter
fileNumber
The file number from file open command of the file to read
readAction
The action to do:
•
Return the next line; returns
nil
if the present file position is at the end of the
file:
file.READ_LINE
•
Return a string with up to n characters; returns an empty string if n is zero;
returns
nil
if the current file position is at the end of file:
file.READ_NUMBER
•
Return the whole file, starting at the present position; returns an empty string
if the present file position is at the end of the file:
file.READ_ALL
Details
This command reads data from a file.
Example
file_num = file.open("/usb1/testfile.txt",
file.MODE_READ)
if file_num != nil then
file_contents = file.read(file_num, file.READ_ALL)
file.close(file_num)
end
Open
testfile.txt
on the
thumb drive for reading. If it
opens successfully, read the
entire contents of the file and
store it in variable
file_contents
.
Close the file.
Also see
None