1.2 ADCHS Polling
This example application shows how to sample an analog input using the ADCHS peripheral and displays the converted samples on a serial terminal.
Description
In this application, the on board temperature sensor's output voltage is provided as analog input to ADC channel. It is converted by a hardware trigger generated by the TMR peripheral. Converted digital value is displayed on the serial terminal.
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/adchs/adchs_polled/firmware.
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| pic32mz_w1_curiosity.X | MPLABX project for PIC32MZ W1 Curiosity Board |
Setting Up the Hardware
The following table shows the target hardware for the application projects.
| Project Name | Description |
|---|---|
| pic32mz_w1_curiosity.X | PIC32MZ W1 Curiosity Board |
Setting Up PIC32MZ W1 Curiosity Board
- Connect the J209 jumper of a temperature sensor
- Connect the Debug USB port on the board to the computer using a micro USB cable
- On the GPIO Header (J207), connect U1RX (PIN 13) and U1TX (PIN 23) to TX and RX pin of any USB to UART converter like USB UART click respectively
Running the Application
- Open the Terminal application (Ex.:Tera term) on the computer
- Connect to the “USB to UART” COM port and configure the serial settings as
follows:
- Baud : 115200
- Data : 8 Bits
- Parity : None
- Stop : 1 Bit
- Flow Control : None
- Build and Program the application project using its IDE
- Console displays the ADC count
and the ADC input voltage
