1.22 TC compare mode

This example shows how to use the TC module in compare mode to generate an active low, active high, and toggle output on compare match.

Description

Three TC channels are configured in compare mode. Each channel generates different output waveform depending upon configured action on compare match and period match.

**Active low output**: Output is set high on compare 1 match and is

set low on compare 0 match.

**Active high output**: Output is set low on compare 1 match and is

set high on compare 0 match.

**Toggle output**: Output toggles on compare 0 match.

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/tc/tc_compare_mode/firmware.

To build the application, refer to the following table and open the project using its IDE.

Project NameDescription
WBZ351_curiosity.XMPLABX project for PIC32CX WBZ351 Curiosity Board

Setting Up the Hardware

The following table shows the target hardware for the application projects.

Project NameBoard
WBZ351_curiosity.XPIC32CX WBZ351 Curiosity Board

Setting Up PIC32CX WBZ351 Curiosity Board

  • Connect the Debug USB port on the board to the computer using a micro USB cable

Running the Application

  1. Build and Program the application using its IDE
  2. Observe generated waveforms on the oscilloscope
    Table 1-1. 
    Timer Channel PinObservable characteristic of the waveform
    TC0_WO1PA07 (Pin 14 of Xpro Header) Active low ouptut with 100 Hz frequency
    TC2_WO1PA14 (Pin 12 of Xpro Header) Active high output with 100 Hz frequency
    TC1_WO0PA08 (Pin 18 of Xpro Header)Toggle output with 50 Hz frequency