Component: Quadrature Encoder (EBM007) (EBM Modules)
From Flowcode Help
Jump to navigationJump to search| Author | Matrix TSL |
| Version | 1.0 |
| Category | EBM Modules |
Contents
Quadrature Encoder component
Provides a rotary encoder with dual digital outputs that provide rotation and direction information. When connected to two digital inputs of a microcontroller a “digital pot” can be implemented to convert to digital values.
Component Source Code
Please click here to view the component source code (Beta): FC_Comp_Source_EBM007v2.fcfx
Detailed description
No detailed description exists yet for this component
Examples
This example scans the encoder for changes and displays a counter on the LCD based on the movement of the encoder.
Macro reference
|
CheckForChanges |
| Polling function to check changes Returns 1 for chaged, 0 for no change, 255 for error | |
 - BYTE
|
Return |
|
|
Disable |
| Disables the use of the quad encoder Once this ist called, the read functions will return zeros until the next Enable() call | |
 - VOID
|
Return |
|
|
WriteCounter32 |
| Sets the value of the internal count variable. Range: -2147483648 to 2147483647 | |
 - LONG
|
Value |
| Range: -2147483648 to 2147483647 | |
| - VOID
|
Return |
|
|
Enable |
| Enables the use of the quad encoder If this is not called, the read functions will return zeros | |
| - VOID
|
Return |
|
|
ReadCounter |
| Reads the current dial counter This is a counter from -32768 to 32767 | |
 - INT
|
Return |
|
|
WriteCounter |
| Sets the value of the internal count variable. Range: -32768 to 32767 | |
| - INT
|
Value |
| Range: -32768 to 32767 | |
| - VOID
|
Return |
|
|
ResetCounter |
| Resets the current dial counter to zero | |
| - VOID
|
Return |
|
|
ReadCounter32 |
| Reads the current dial counter as a 32-bit value This is a counter from -2147483648 to 2147483647 | |
| - LONG
|
Return |
Property reference
|
Properties |
|
Count Variable |
|
Variable Type |
| Selects the size of the encoder count variable depending on the number of encoder counts required to be stored. The 16 bit variable counter is accessed via the ReadCounter and WriteCounter functions. The 32 bit variable counter is accessed via the ReadCounter32 and WriteCounter32 functions. | |
|
|
Encoder Resolution |
|
|
Post Scaler |
| Encoders with a mechanical click will often have 4 transitions per click. 1:1 would provide the maximum output resolution. 1:4 would provide the encoder click count. | |
|
|
Connections |
|
A |
| Input pin A | |
|
|
B |
| Input Pin B | |
|
|
Simulation |
|
|
Repeat Rate |
| Simulated repeat rate when clicking and rotating the encoder | |
|
Rotation Increment |
| Number of degrees to rotate when performing a single quadrature pin transition. | |
|
Scope Traces |
==Macro reference==
|
|
CheckForChanges |
| Polling function to check changes Returns 1 for chaged, 0 for no change, 255 for error | |
| - BYTE
|
Return |
|
|
Disable |
| Disables the use of the quad encoder Once this ist called, the read functions will return zeros until the next Enable() call | |
| - VOID
|
Return |
|
|
WriteCounter32 |
| Sets the value of the internal count variable. Range: -2147483648 to 2147483647 | |
| - LONG
|
Value |
| Range: -2147483648 to 2147483647 | |
| - VOID
|
Return |
|
|
Enable |
| Enables the use of the quad encoder If this is not called, the read functions will return zeros | |
| - VOID
|
Return |
|
|
ReadCounter |
| Reads the current dial counter This is a counter from -32768 to 32767 | |
| - INT
|
Return |
|
|
WriteCounter |
| Sets the value of the internal count variable. Range: -32768 to 32767 | |
| - INT
|
Value |
| Range: -32768 to 32767 | |
| - VOID
|
Return |
|
|
ResetCounter |
| Resets the current dial counter to zero | |
| - VOID
|
Return |
|
|
ReadCounter32 |
| Reads the current dial counter as a 32-bit value This is a counter from -2147483648 to 2147483647 | |
| - LONG
|
Return |
Property reference
|
|
Properties |
|
|
Count Variable |
|
|
Variable Type |
| Selects the size of the encoder count variable depending on the number of encoder counts required to be stored. The 16 bit variable counter is accessed via the ReadCounter and WriteCounter functions. The 32 bit variable counter is accessed via the ReadCounter32 and WriteCounter32 functions. | |
|
|
Encoder Resolution |
|
|
Post Scaler |
| Encoders with a mechanical click will often have 4 transitions per click. 1:1 would provide the maximum output resolution. 1:4 would provide the encoder click count. | |
|
|
Connections |
|
|
A |
| Input pin A | |
|
|
B |
| Input Pin B | |
|
|
Simulation |
|
|
Repeat Rate |
| Simulated repeat rate when clicking and rotating the encoder | |
|
|
Rotation Increment |
| Number of degrees to rotate when performing a single quadrature pin transition. | |
|
|
Scope Traces |
