1.40 TCC Compare Mode
This example shows how to use the TCC module in compare mode to generate different waveforms.
Description
Three TCC channels are configured in compare mode. Each channel generates different output waveform depending upon configured action on compare match and period match.
Normal Frequency Mode: The waveform generation output (WO[x]) is toggled on each compare match between COUNT and CCx.
Match Frequency Mode: The waveform generation output (WO[0]) is toggled on each time COUNT register is auto updated.
Downloading and Building the Application
To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.
Path of the application within the repository is apps/tcc/tcc_compare_mode/firmware.
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| pic32cz_ca80_curiosity_ultra.X | MPLABX project for PIC32CZ CA80 Curiosity Ultra Board |
Setting Up the Hardware
The following table shows the target hardware for the application projects.
| Project Name | Board |
|---|---|
| pic32cz_ca80_curiosity_ultra.X | PIC32CZ CA80 Curiosity Ultra Board |
Setting Up PIC32CZ CA80 Curiosity Ultra Board
- Connect the Debug USB port on the board to the computer using a micro USB cable
Running the Application
- Build and Program the application using its IDE
- Observe generated waveforms on the oscilloscope
PIC32CZ CA80 Curiosity Ultra Board:
| Timer Channel | Pin | Observable Characteristic of the Waveform |
|---|---|---|
| TCC0_WO0 | PC00 (Pin 11 of EXT1) | Toggle output every 21.33 ms |
| TCC1_WO0 | PB10 (Pin 7 of EXT1) | Toggle output every 17.07 ms |
