GPIO LED Blink

Table of Contents

• Introduction
• Supported Combinations
• Steps to Run the Example
• See Also
• Sample Output

Introduction

This example configures a GPIO pin connected to an LED on the EVM in output mode. The application toggles the LED on/off for 10 seconds and exits.

We do not have any LED connected direct from MCU connection for testing gpio pins on the board, So we are using MCU_HEADER pins for gpio pins for glowing LED. Make the following connections for this example to work on the SK-AM62.

• Connect LED(high) to Pin 18 of J9.
• Connect LED(ground) to Pin 27 of J9.

To modify the example to use main domain GPIO, refer Accessing main and wakeup domain peripherals from MCU domain

Supported Combinations

Parameter	Value
CPU + OS	m4fss0-0 nortos
	m4fss0-0 freertos
	r5fss0-0 freertos
Toolchain	ti-arm-clang
	arm.gnu.aarch64-none
Board	am62x-sk, am62x-sk-lp, am62x-sip-sk
Example folder	examples/drivers/gpio/gpio_led_blink/

Steps to Run the Example

• When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
• When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
• Launch a CCS debug session and run the executable, see CCS Launch, Load and Run

Attention

As the wake-up R5 is the device manager, it needs to be started by the SBL. So it can not be loaded through CCS. It should be flashed and booted through SBL.

• Refer Flash an example application for flashing the application.

See Also

GPIO

Sample Output

Shown below is a sample output when the application is run,

GPIO LED Blink Test Started ...
LED will Blink for 10 seconds ...
GPIO LED Blink Test Passed!!
All tests have passed!!