Fixed-Point Probe
This MotoHawk™ block allows run-time observation of a fixed point signal with a suitable Instrumentation tool.
Block ID
Fixed Point Probe
Library
MotoHawk_lib/Fixed Point Blocks
Description
The Name Source field allows the name to be entered as a Literal, evaluated as a Matlab expression, or it may be inherited from the name of the input wire. If no name is supplied, (Undefined Name) will be displayed on the block. Engineering Value = (Raw Module Value*Gain)^Exp)+Offset. For more information, see Fixed Point Values and B Numbers.
Block Parameters
| Parameter Field | Values | Comments/Description |
|---|---|---|
| Name | Alpha-numeric text, single-quote enclosed | Name of the variable. Should be unique and C-legal (no special characters, such as spaces, dashes or commas (underscore allowed) |
| Input B Scale | Numeric (B value) | Supply applicable value for "B" - larger B values increase value range and reduce resolution of output values. |
| Number of Bits | Drop down | Selects 16 or 32 bits |
| Name Source | Select source for Name parameter. | |
| Use Parameter | Use Name field text. | |
| Input Wire Name | Take name from input wire name. | |
| Output Wire Name | Take name from output wire name. | |
| Read Access Level | 0-8 | Sets security level 1 lowest, 8 highest, for user access to read value. A setting of zero indicates unsecured access is allowed. |
| View Value as |
Number Enumeration Text |
Sets "Default Value" data type Numeric value Enables enumeration - maps to the indicated term in the Enumeration text-entry field Text string |
| Enumeration (Cell String, or Struct) | Alpha-numeric text, single-quote enclosed | Field enabled when Enumeration is selected under "View Value as." Enter term of defined entity to be mapped. Cell String: A cell array of strings such as {'Off', 'On'} may be used to define the names of enumerated values. In this case, the values start with 0 and increment by one. This is especially useful for defining names for Boolean flags like 'On' and 'Off'. Struct: A Matlab struct array containing a 'name' field, and optionally a 'value' field may be used to define the namesand explicitly define the values of an enumerated type. For example: struct('name', {'Off', 'On'}, 'value', {0,1}). If the'value' field is missing, then the values start with 0 and increment by one, just like with the Cell String format. |
| Show Vectors As | Wide Row/Tall Column | Set viewing format for values displayed |
| Help Text | Alpha-numeric text, single-quote enclosed | Enter text to describe block usage per needs. |
| Units | Alpha-numeric text, single-quote enclosed | Engineering units |
| Row Header Enumeration (Cell String, or Struct) | Alpha-numeric text, single-quote enclosed | Use to identify / locate probe value (see Enumeration) - row header |
| Column Header Enumeration (Cell String, or Struct) | Alpha-numeric text, single-quote enclosed | Use to identify / locate probe value (see Enumeration) - column header |
| Minimum Value | Numeric Value | Sets lower end of allowable range for value. This can be used in calibration tools to set the minimum allowed value for the probed signal. |
| Maximum Value | Numeric Value | Sets higher end of allowable range for value. This can be used in calibration tools to set the maximum allowed value for the probed signal. |
| Precision | Numeric value, single-quote enclosed | Set the precision of the variable displayed by an instrumentation tool by entering a value '1.x' where "x" is the number of decimal places requested. Default is two decimal places. |
| Instrumentation Group | Alpha-numeric text, single-quote enclosed | Defines the folder name and hierarchy for use by a suitable instrumentation tool. Use "|" character between folder names to delineate subfolder structure |