| Title: Disco demo |
| |
| Description: |
| |
| A simple 'disco' demo. The demo assumes that 2 LEDs are connected to |
| GPIO outputs of the MCU/board. The sample code is configured to work |
| on Nucleo-64 F103RB board, with LEDs connected to PB5 and PB8 |
| pins. |
| |
| After startup, the program looks up a predefined GPIO device (GPIOB), |
| and configures pins 5 and 8 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. |
| |
| -------------------------------------------------------------------------------- |
| |
| Building and Running Project: |
| |
| This microkernel project does not output to the console, but instead |
| causes two LEDs connected to the GPIO device to blink in an |
| alternating pattern. It can be built for a nucleo_f103rb board as |
| follows: |
| |
| make |
| |
| The code may need adaption before running the code on another board. |
| |
| -------------------------------------------------------------------------------- |
| |
| Troubleshooting: |
| |
| Problems caused by out-dated project information can be addressed by |
| issuing one of the following commands then rebuilding the project: |
| |
| make clean # discard results of previous builds |
| # but keep existing configuration info |
| or |
| make pristine # discard results of previous builds |
| # and restore pre-defined configuration info |
| |
| -------------------------------------------------------------------------------- |
