This version (04 Jan 2023 12:12) was approved by ananthakalyani Sankar.
Table of Contents
Pulse Generator
Description
The Pulse Generator block generates pulse at different frequencies with a configurable duty cycle.
Usage
This block has checkbox to enabled or disabled the algorithm. Check the box to enable this algorithm. It has the text fields for frequency and duty cycle to generate the pulse at different frequencies with different “ON” and “OFF” time of the pulse.It has the radio button to round the coefficients.
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/ADSP-SC5xx | ADAU145x/146x |
|---|---|---|---|
| —————————————- | —————————————— | ————————————————-- | ——————————————- |
| Pulse Generator | Block | Block | Sample |
Pins
Output
| Name | Type | Description |
|---|---|---|
| ——————————— | ———————————- | ————————————-- |
| Output0 | Control | Output channel 0 |
Configurable Parameters
| GUI Parameter Name | Default Value | Range | Function Description |
|---|---|---|---|
| —————————————- | ———————- | —————————— | ————————————————————————————-- |
| Frequency | 0.01 | 0.01 to 0.5* sample rate | Sets the frequency for pulse |
| ON | True | True/False | Enable/Disable the algorithm for the channel. When the algorithm is disabled, the output pin will send out a constant value 0.0 |
| DutyCycle | 2.08 | 0 to 100 | Controls the ON time and OFF time of the pulse |
| RoundCoeff | false | True/False | Enable/Disable the frequency step rounding |
DSP Parameters
| Parameter Name | Description | ADSP-214xx/SC5xx/215xx | ADAU145x/146x |
|---|---|---|---|
| ————————-- | —————————————————————————— | —————————————————- | ——————————— |
| Frequency | Step size for generating the pulse for specified frequency | Float | FixPoint8d24 |
| DutyCycle | Controls the ON and OFF time of the pulse | Float | FixPoint8d24 |
| ON | Enable/Disable the module | Float | FixPoint8d24 |
| RoundCoeff | Roundoff the frequency coefficient | Float | FixPoint8d24 |
DSP Parameter Computation
- Frequency = fs/FS + 0.0000001 (if rounded)
- Frequency = fs/FS (not rounded)
- DutyCycle = DutyCylce/100
Where fs is frequency and FS is the sampling rate
resources/tools-software/sigmastudio/toolbox/sources/pulsewithdynamicdutycycle.txt · Last modified: 04 Jan 2023 12:11 by ananthakalyani Sankar