Random on and off blinky for nRF-DK

Files at this revision

API Documentation at this revision

Comitter:
gkroussos
Date:
Thu May 31 15:33:24 2018 +0000
Commit message:
Random blinky

Changed in this revision

.gitignore Show annotated file Show diff for this revision Revisions of this file
README.md Show annotated file Show diff for this revision Revisions of this file
img/uvision.png Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-os.lib Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r 774078f45f9d .gitignore
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore	Thu May 31 15:33:24 2018 +0000
@@ -0,0 +1,4 @@
+.build
+.mbed
+projectfiles
+*.py*
diff -r 000000000000 -r 774078f45f9d README.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README.md	Thu May 31 15:33:24 2018 +0000
@@ -0,0 +1,89 @@
+# Getting started with Blinky on mbed OS
+
+This is a very simple guide, reviewing the steps required to get Blinky working on an mbed OS platform.
+
+Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
+
+## Get the example application!
+
+From the command line, import the example:
+
+```
+mbed import mbed-os-example-blinky
+cd mbed-os-example-blinky
+```
+
+### Now compile
+
+Invoke `mbed compile` specifying the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
+
+```
+mbed compile -m K64F -t ARM
+```
+
+Your PC may take a few minutes to compile your code. At the end you should get the following result:
+
+```
+[snip]
++----------------------------+-------+-------+------+
+| Module                     | .text | .data | .bss |
++----------------------------+-------+-------+------+
+| Misc                       | 13939 |    24 | 1372 |
+| core/hal                   | 16993 |    96 |  296 |
+| core/rtos                  |  7384 |    92 | 4204 |
+| features/FEATURE_IPV4      |    80 |     0 |  176 |
+| frameworks/greentea-client |  1830 |    60 |   44 |
+| frameworks/utest           |  2392 |   512 |  292 |
+| Subtotals                  | 42618 |   784 | 6384 |
++----------------------------+-------+-------+------+
+Allocated Heap: unknown
+Allocated Stack: unknown
+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
+```
+
+### Program your board
+
+1. Connect your mbed device to the computer over USB.
+1. Copy the binary file to the mbed device .
+1. Press the reset button to start the program.
+
+You should see the LED of your platform turning on and off.
+
+Congratulations if you managed to complete this test!
+
+## Export the project to Keil MDK and debug your application
+
+From the command line, run the following command:
+
+```
+mbed export -m K64F -i uvision
+```
+
+To debug the application:
+
+1. Start uVision.
+1. Import the uVision project generated earlier.
+1. Compile your application and generate an `.axf` file.
+1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger).
+1. Set breakpoints and start a debug session.
+
+![Image of uVision](img/uvision.png)
+
+## Troubleshooting
+
+1. Make sure `mbed-cli` is working correctly and its version is greater than `0.8.9`
+
+ ```
+ mbed --version
+ ```
+
+ If not, you can update it easily:
+
+ ```
+ pip install mbed-cli --upgrade
+ ```
+
+2. If using Keil MDK, make sure you have a license installed. [MDK-Lite](http://www.keil.com/arm/mdk.asp) has a 32KB restriction on code size.
diff -r 000000000000 -r 774078f45f9d img/uvision.png
Binary file img/uvision.png has changed
diff -r 000000000000 -r 774078f45f9d main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 31 15:33:24 2018 +0000
@@ -0,0 +1,20 @@
+#include "mbed.h"
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+
+// main() runs in its own thread in the OS
+// (note the calls to wait below for delays)
+int main() {
+    int myRandom; 
+    while (true) {
+        myRandom = rand() % 100;
+        if (myRandom > 50) led1 = !led1;
+        led2 = !led2;
+        myRandom = rand() % 100;
+        if (myRandom > 50) led3 = !led3;
+        wait(0.5);
+    }
+}
+
diff -r 000000000000 -r 774078f45f9d mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Thu May 31 15:33:24 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#2885c1b41e63158cb6faf5f107cd821ae06ef26c