Getting Started Training Module Using MCC: Step 3

Step 3.1: Configure Switch Button Pin with EIC

The switch button will be configured as per the design schematic of the SAM E51 Curiosity Nano Evaluation Kit.

user_button_schematic.png

1

Select the Pin Settings tab of MCC and then scroll down to the Pin Number 32 and configure the PORT pin PA15 as an external interrupt pin for switch functionality. The internal pull-up is enabled to avoid false edge detection as there is no external pull-up on the SAM E51 Curiosity Nano Evaluation Kit.

eic_pin_configuration.png
Click image to enlarge.

2

Select the Project Graph tab.

3

Under the left side tab, Resource Management (MCC), go to Device Resources and expand Libraries > Harmony > Peripherals > EIC. Click on the green_plus.png symbol beside the EIC to add the EIC module to the project graph.
eic_peripheral_adding.png

4

Configure the EIC block to generate an interrupt every time the user presses the switch SW0 and enable debounce functionality to avoid debouncing on the switch pin.

eic_configuration_setup.png

Step 3.2: Configure LED Pin

The user LED will be configured as per the design schematic of the SAM E51 Curiosity Nano Evaluation Kit.

user_led_schematic.png

Select the MCC Pin Settings tab and scroll down to the Pin Number 31. Configure the PORT pin PA14 as an output pin for LED functionality.

led_pin_configuration.png

Note: The LED on the SAM E51 Curiosity Nano Evaluation Kit is active low. Configure the LED in default OFF state by configuring the latch value to logic High.

Step 3.3: Rename the Default Main File

Under the Project Graph tab, click on System, and give a name of your liking to the default template main file generated by MCC.

main_file_name_setup.png

Note: The name of the default main.c is changed to main_sam_e51_cnano.c to indicate that the referred main.c is for the SAM E51 CNano getting started training module.



Next Step >

© 2024 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contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates.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.