This is a very simple guide, reviewing the steps required to get Blinky working on an Mbed OS platform.
Mbed OS Blinky
This example shows the use of a DigitalOut object to represent an LED and use of the nonblocking Thread::wait()
call. Using nonblocking calls is good practice because Mbed OS can schedule and run other threads while the first thread is waiting.
Building this example
Building with Arm Mbed CLI
To use Mbed CLI to build this example, follow the instructions in the documentation. The instructions here relate to using the Arm Online Compiler.
To use the Online Compiler, import this code into the Online Compiler, and select your platform from the top right. Compile the code using the compile button, load it onto your board and press the reset button on the board. The code will run on the board, and you will see the LED blink.
You can find more instructions for using the Mbed Online Compiler in the documentation.
Revision 1:846c97078558, committed 2016-07-28
- Comitter:
- Jonathan Austin
- Date:
- Thu Jul 28 16:32:52 2016 +0100
- Parent:
- 0:2757d7abb7d9
- Child:
- 2:8834f9351e9b
- Commit message:
- Update example to https://github.com/ARMmbed/mbed-os-example-blinky at tag mbed-os-5.1.0-rc3
Changed in this revision
--- a/README.md Thu Jul 28 13:52:35 2016 +0100 +++ b/README.md Thu Jul 28 16:32:52 2016 +0100 @@ -41,7 +41,7 @@ Total Static RAM memory (data + bss): 7168 bytes Total RAM memory (data + bss + heap + stack): 7168 bytes Total Flash memory (text + data + misc): 43402 bytes -Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin +Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin ``` ### Program your board @@ -59,7 +59,7 @@ From the command line, run the following command: ``` -mbed export -m K64F -i uvision -n mbed-os-example-blinky +mbed export -m K64F -i uvision ``` You should see the following output:
Binary file img/uvision.png has changed
--- a/main.cpp Thu Jul 28 13:52:35 2016 +0100 +++ b/main.cpp Thu Jul 28 16:32:52 2016 +0100 @@ -2,20 +2,13 @@ #include "rtos.h" DigitalOut led1(LED1); -DigitalOut led2(LED2); -void led2_thread(void const *args) { - while (true) { - led2 = !led2; - Thread::wait(1000); - } -} - +// main() runs in its own thread in the OS +// (note the calls to Thread::wait below for delays) int main() { - Thread thread(led2_thread); - while (true) { led1 = !led1; Thread::wait(500); } } +
--- a/mbed-os.lib Thu Jul 28 13:52:35 2016 +0100 +++ b/mbed-os.lib Thu Jul 28 16:32:52 2016 +0100 @@ -1,1 +1,1 @@ -https://github.com/mbedmicro/mbed#5fea6e69ec1aec4c56852f2e959002dc815eb480 +https://github.com/mbedmicro/mbed/#36468c9acbfeabb717d2cc7d2a7ea7d17df1ac09