write
Description
Examples
Write uint8
Data to VISA Resource
Create a connection to a VISA resource. This example shows a connection to a device
with the alias COM4
using the VISA-Serial interface.
v = visadev("COM4");
Write the values [1,2,3,4,5]
as uint8
data to
the VISA resource v
.
write(v,1:5)
Write String Data to VISA Resource
Create a connection to a VISA resource. This example shows a connection to a device
with the alias COM4
using the VISA-Serial interface.
v = visadev("COM4");
Write a string of data to the VISA resource v
.
write(v,"Hello, world!","string")
Input Arguments
v
— VISA resource
visadev
object
VISA resource, specified as a visadev
object.
Example: write(v,10)
writes to the VISA resource
v
.
data
— Numeric or ASCII data
numeric | character vector | string scalar
Numeric or ASCII data, specified as a row (1-by-N
) or column
(N
-by-1) vector of numeric values or as a character vector or
string scalar of text. For all numeric datatype
types,
data
is a row vector of values.
Example: write(v,300)
writes the value
300
.
Data Types: single
| double
| int8
| int16
| int32
| int64
| uint8
| uint16
| uint32
| uint64
| char
| string
datatype
— Size and format of each value
"uint8"
(default) | "int8"
| "uint16"
| "int16"
| "uint32"
| "int32"
| "uint64"
| "int64"
| "single"
| "double"
| "char"
| "string"
Size and format of each value, specified as a character vector or string.
datatype
determines the number of bytes to write for each value
and the interpretation of those bytes as a MATLAB® data type.
For any read or write operation, the data type is converted to
uint8
for the data transfer. After the transfer, the data type
reverts to the specified datatype
.
Example: write(v,1:5,"double")
writes the values
[1,2,3,4,5]
as double data.
Data Types: char
| string
Version History
Introduced in R2021a
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