| .. _disco-sample: |
| |
| Disco demo |
| ########## |
| |
| Overview |
| ******** |
| |
| A simple 'disco' demo. The demo assumes that 2 LEDs are connected to |
| GPIO outputs of the MCU/board. |
| |
| |
| Wiring |
| ****** |
| |
| This sample should work on board with multiple built-in LEDs without any |
| changes, otherwise, the code may need some changes before running on various |
| board: set PORT, LED0 and LED1 according to the board's GPIO configuration. |
| |
| Building and Running |
| ********************* |
| |
| After startup, the program looks up a predefined GPIO device defined by 'PORT', |
| and configures pins 'LED0' and 'LED1' in output mode. During each iteration of |
| the main loop, the state of GPIO lines will be changed so that one of the lines |
| is in high state, while the other is in low, thus switching the LEDs on and off |
| in an alternating pattern. |
| |
| This project does not output to the serial console, but instead causes two LEDs |
| connected to the GPIO device to blink in an alternating pattern. |
| |
| The sample can be found here: :zephyr_file:`samples/basic/disco`. |
