Revision 51:38bcf5ee4cb1, committed 2017-11-11

Comitter:

Ladon

Date:

Sat Nov 11 15:03:45 2017 +0000

Parent:

50:84f446a84793

Child:

52:fb9d943f4042

Commit message:

send a number through serial >> blink it in binary using the default LED

Changed in this revision

--- a/README.md	Wed Nov 08 14:30:02 2017 +0000
+++ b/README.md	Sat Nov 11 15:03:45 2017 +0000
@@ -1,87 +1,6 @@
-# Getting started with Blinky on mbed OS
-
-This guide reviews 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).
-
-## Import 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`, and specify 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 see 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.
-
-The LED on your platform turns on and off.
-
-## 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 `>1.0.0`
-
- ```
- mbed --version
- ```
-
- If not, you can update it:
-
- ```
- 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 32 KB restriction on code size.
\ No newline at end of file
+In Linux :
+
+$ cat > /dev/ttyACM0
+
+(to quit, hit <Ctrl>+<C>)
+(/dev/ttyACM0 is an example)
\ No newline at end of file

--- a/main.cpp	Wed Nov 08 14:30:02 2017 +0000
+++ b/main.cpp	Sat Nov 11 15:03:45 2017 +0000
@@ -2,11 +2,32 @@
 
 DigitalOut led1(LED1);
 
+Serial pc(USBTX, USBRX);
+
+// blink a number in binary //
+void blink_in_binary (int number);
+
 // main() runs in its own thread in the OS
 int main() {
+//    pc.baud(9600);
+    int number;
+    number = 0;
     while (true) {
-        led1 = !led1;
-        wait(0.5);
+        while (!pc.readable());
+        pc.scanf("%d", &number);
+//        pc.printf("you entered %d\n", number);
+        blink_in_binary(number);
     }
 }
 
+// recursivelly prints left-to-right //
+void blink_in_binary (int number)
+{
+    if (number <= 0)
+        return;
+    blink_in_binary (number >> 1);
+    led1 = number & 1;
+    wait(0.3);
+    led1 = 0;
+    wait(0.3);
+}
\ No newline at end of file