General Memory Properties Page
Installed With: FPGA Module
In the Memory Properties dialog box, select General from the Category list to display this page.
Use this page to edit properties for memory items.
This page includes the following components:
- Name—Specifies the name of the memory item that appears in the Project Explorer window or in the VI-Scoped Memory Configuration node. The name also appears in the Memory Read or Memory Write function on the block diagram.
- Data Type—Specifies the data type of the data that is stored in the memory item. You can select a fixed-point data type, a Boolean data type, or an 8-, 16-, 32-, or 64-bit signed or unsigned integer data type.
- Number of Elements—Specifies the number of elements the memory item can hold. The actual memory usage, in bytes, depends on the number of elements and data type you specify.
- Fixed-Point Configuration—Sets the configuration settings for fixed-point data. Set Data Type to FXP to enable the fixed-point settings. You can configure either Encoding or Range settings. If you configure Encoding settings, LabVIEW updates the Range settings to fit the specified encoding. If you configure Range settings, LabVIEW updates the Encoding settings to fit the specified range. If you edit both Encoding and Range settings, the last settings you edit before clicking the OK button are the settings that LabVIEW uses for the fixed-point data.
Note Memory items do not support overflow for the fixed-point data type. - Encoding—Sets the binary encoding settings for a fixed-point value.
- Signed—Sets whether the fixed-point value is signed.
- Unsigned—Sets whether the fixed-point value is unsigned.
- Word length—Sets the number of bits that LabVIEW uses to represent all the possible fixed-point values.
- Integer word length—Sets the number of integer bits, or the number of bits to shift the binary point to reach the most significant bit, for all the possible fixed-point values. Integer word length can be positive or negative.
- Range—Sets the desired range for a fixed-point value.
Note The fields you use to specify these values display the values in double-precision floating-point representation, so the precision of the display at Maximum, Minimum, and Desired delta might not be exact in terms of fixed-point representation. - Minimum—Sets the minimum value for the fixed-point data range.
- Maximum—Sets the maximum value for the fixed-point data range.
- Desired delta—Specifies the maximum distance between any two sequential numbers in the fixed-point data range.
- Encoding—Sets the binary encoding settings for a fixed-point value.