Harmony v3 Peripheral Libraries on PIC32MX 470: Step 3

Step 3.1: Configure Switch Button Pin with GPIO Interrupt Handler

In this step, the switch button will be configured as per below switch S1 design schematic of PIC32MX470 Curiosity Development Board.

user_button_schematic.png

1

In MPLAB® Harmony Configurator (MHC), select the Pin Settings tab and sort the entries by Ports names as shown below.

pins_sorting.png

Scroll down to the GPIO pin RD6 (Pin Number 54) in the Pin ID column and configure RD6 as an external interrupt pin for S1 switch functionality as shown below. Internal pull-up is enabled to avoid false edge detection as there is no external pull-up on the PIC32MX470 Curiosity Development Board.

switch_pin_configuration.png

Step 3.2: Configure LED Pin

In this step, the user LED will be configured as per below LED0 design schematic of PIC32MX470 Curiosity Development Board.

user_led_schematic.png

Select the MHC Pin Settings tab and then scroll down to the GPIO pin RE4 (Pin Number 64) in the Pin ID column and configure RE4 as an output pin for LED1 functionality as shown below.

led_pin_configuration.png

The LED1 on the PIC32MX470 Curiosity Development Board is active low. Configure the LED1 in default OFF state by configuring the latch value to logic "High".

Step 3.3: Rename the Default Main File

1

Under the Project Graph tab, click on System, and configure as below to give the name of your liking to the default template main file generated by MHC.

main_file_name_setup.png

The name of the default main.c is changed to main_pic32mx470.c to indicate that the referred main.c is for the PIC32MX470 getting started training module.



Next Step >

© 2020 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.