Revision 0:c831d14afee7, committed 2020-07-20

Comitter:

radhey04ec

Date:

Mon Jul 20 04:34:34 2020 +0000

Commit message:

USE OF RAWSERIAL CLASS; UART INTERRUPT USAGE; READ DATA FROM SLAVE DEVICE; FINAL COMMIT -- TEST OK

Changed in this revision

diff -r 000000000000 -r c831d14afee7 .gitignore
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore	Mon Jul 20 04:34:34 2020 +0000
@@ -0,0 +1,4 @@
+.build
+.mbed
+projectfiles
+*.py*

diff -r 000000000000 -r c831d14afee7 CONTRIBUTING.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CONTRIBUTING.md	Mon Jul 20 04:34:34 2020 +0000
@@ -0,0 +1,5 @@
+# Contributing to Mbed OS
+
+Mbed OS is an open-source, device software platform for the Internet of Things. Contributions are an important part of the platform, and our goal is to make it as simple as possible to become a contributor.
+
+To encourage productive collaboration, as well as robust, consistent and maintainable code, we have a set of guidelines for [contributing to Mbed OS](https://os.mbed.com/docs/mbed-os/latest/contributing/index.html).

diff -r 000000000000 -r c831d14afee7 README.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README.md	Mon Jul 20 04:34:34 2020 +0000
@@ -0,0 +1,64 @@
+![](./resources/official_armmbed_example_badge.png)
+# Blinky Mbed OS example
+
+The example project is part of the [Arm Mbed OS Official Examples](https://os.mbed.com/code/) and is the [getting started example for Mbed OS](https://os.mbed.com/docs/mbed-os/v5.14/quick-start/index.html). It contains an application that repeatedly blinks an LED on supported [Mbed boards](https://os.mbed.com/platforms/).
+
+You can build the project with all supported [Mbed OS build tools](https://os.mbed.com/docs/mbed-os/latest/tools/index.html). However, this example project specifically refers to the command-line interface tool [Arm Mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
+(Note: To see a rendered example you can import into the Arm Online Compiler, please see our [import quick start](https://os.mbed.com/docs/mbed-os/latest/quick-start/online-with-the-online-compiler.html#importing-the-code).)
+
+1. [Install Mbed CLI](https://os.mbed.com/docs/mbed-os/latest/quick-start/offline-with-mbed-cli.html).
+
+1. Clone this repository on your system, and change the current directory to where the project was cloned:
+
+    ```bash
+    $ git clone git@github.com:armmbed/mbed-os-example-blinky && cd mbed-os-example-blinky
+    ```
+
+    Alternatively, you can download the example project with Arm Mbed CLI using the `import` subcommand:
+
+    ```bash
+    $ mbed import mbed-os-example-blinky && cd mbed-os-example-blinky
+    ```
+
+
+## Application functionality
+
+The `main()` function is the single thread in the application. It toggles the state of a digital output connected to an LED on the board.
+
+## Building and running
+
+1. Connect a USB cable between the USB port on the board and the host computer.
+2. <a name="build_cmd"></a> Run the following command to build the example project and program the microcontroller flash memory:
+    ```bash
+    $ mbed compile -m <TARGET> -t <TOOLCHAIN> --flash
+    ```
+The binary is located at `./BUILD/<TARGET>/<TOOLCHAIN>/mbed-os-example-blinky.bin`.
+
+Alternatively, you can manually copy the binary to the board, which you mount on the host computer over USB.
+
+Depending on the target, you can build the example project with the `GCC_ARM`, `ARM` or `IAR` toolchain. After installing Arm Mbed CLI, run the command below to determine which toolchain supports your target:
+
+```bash
+$ mbed compile -S
+```
+
+## Expected output
+The LED on your target turns on and off every 500 milliseconds.
+
+
+## Troubleshooting
+If you have problems, you can review the [documentation](https://os.mbed.com/docs/latest/tutorials/debugging.html) for suggestions on what could be wrong and how to fix it.
+
+## Related Links
+
+* [Mbed OS Stats API](https://os.mbed.com/docs/latest/apis/mbed-statistics.html).
+* [Mbed OS Configuration](https://os.mbed.com/docs/latest/reference/configuration.html).
+* [Mbed OS Serial Communication](https://os.mbed.com/docs/latest/tutorials/serial-communication.html).
+* [Mbed OS bare metal](https://os.mbed.com/docs/mbed-os/latest/reference/mbed-os-bare-metal.html).
+* [Mbed boards](https://os.mbed.com/platforms/).
+
+### License and contributions
+
+The software is provided under Apache-2.0 license. Contributions to this project are accepted under the same license. Please see contributing.md for more info.
+
+This project contains code from other projects. The original license text is included in those source files. They must comply with our license guide.

diff -r 000000000000 -r c831d14afee7 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 20 04:34:34 2020 +0000
@@ -0,0 +1,131 @@
+//UART - SERIAL INTERRUPT ADVANCE PART
+
+//READ DATA FROM SLAVE DEVICE USING UART PORT
+
+/* NOTE *****************************************************************
+
+If you use normal Serial object than you can face problems of Mutex lock when using Interrupt Handller
+
+That leads to crash on board OS, and you can see the error message on Terminal 
+
+Instead of Serial use --> Rawserial object , so you will not face any problems when using IRQ handler
+
+*******************************************************************   */
+
+/*  About Program : --------------------------------------------------------
+Slave board providing data with different Baud rate -57600
+PC connected with STM Nucleo with 9600 Baud rate
+STM CONNECTED WITH PC AND SLAVE With UART Port
+----------------------------------------------------------------------------- */
+
+/* CREATOR  ---
+CREATED BY : JAYDEEP SHAH
+SUBJECT : RECEIVE DATA USING UART IRQ
+radhey04ec@gmail.com
+------   */
+
+
+
+#include "mbed.h"
+#define BUFFER_SIZE 90   //SIZE OF BUFFER   ---DEPENDS ON YOUR DATA SIZE
+
+char rxBuffer[BUFFER_SIZE];  //CREATE CIRCULAR BUFFER  -- TO STORE RECEIVE DATA
+
+unsigned int bufferReadingIndex=0;  //CREATE POINTER TO READ DATA FROM UART AND STORE INTO ARRAY
+
+unsigned int i=0; //counter to read data from buffer Array
+
+// 0 - Rx - PA_0   : Board Tx ___ Arduino Connector socket >>> First_pin _Orange  -- If FTDI CABLE USE
+// 1 - Tx - PA_1   : Board Rx ____ Arduino connector socket  >>> Second_pin _red  -- If FTDI CABLE USE
+
+//If you use only Serial calss , there is chance of damage OS because of MUTEX GUARD
+
+//use RawSerial class
+RawSerial UT(PA_0,PA_1);  //UART PIN DECLARATION
+RawSerial pc(USBTX,USBRX);  //HOST PC TERMINAL  - 9600 BAUD WITH 8-N-1 STTING
+
+//NOTE : UT OBJ FOR SLAVE BOARD & pc OBJ FOR TERMINAL
+
+//DEFINE Rx Interrupt function --DECLARATION
+void RxInterrupt(void);
+
+//Function that read response data
+void response(void);
+
+
+int main()
+{
+UT.baud(57600);  //BAUD RATE SETTING
+UT.format(8,Serial::None,1);   //FORMAT OF UART COMMUNICATION
+
+//INTERRUPT ATTACHMENT WHEN RECEIVE DATA
+UT.attach(&RxInterrupt,Serial::RxIrq);
+
+pc.printf("\n TESTING TURN ON : \n");
+wait(1);
+
+UT.putc('T');  //ENTER IN TEST MODE  -- SLAVE BOARD ENTER INTO TEST MODE
+wait(0.5);
+response();  //Read Response from Slave 
+
+
+ThisThread::sleep_for(1000);
+
+UT.putc('d');   // RED LED OF SLAVE BOARD ON
+wait(1);
+response(); //Read Response from Slave
+
+ThisThread::sleep_for(5000);
+
+
+UT.putc('b');  // RED LED OF SLAVE BOARD OFF
+wait(1);
+response();  //Read Response from slave
+
+ThisThread::sleep_for(1000);
+
+UT.putc('Q');  //QUIT FROM TEST MODE -- NORMAL MODE SELECT
+wait(1);
+response();//Read response from Slave
+
+ThisThread::sleep_for(3000);
+
+while(1)
+{
+}
+
+}
+
+
+void RxInterrupt()      //if Rx buffer have data --- Interrupt call
+{
+    if(UT.readable())  //IF data available
+    {
+        rxBuffer[bufferReadingIndex++] = UT.getc();   // read and store into Buffer
+        if(bufferReadingIndex >= BUFFER_SIZE)  // If limit cross
+        {
+            bufferReadingIndex =0; // RESET CONTER
+        }
+    }
+}
+
+void response()  //FUNCTION TO READ DATA
+{
+    char rxByte;
+
+    while(i != bufferReadingIndex)  //READ WHILE COMPLETE DATA NOT RECEIVED
+    {
+        rxByte = rxBuffer[i];  //READ DATA ONE BY ONE CHARACTER
+        pc.putc(rxByte); // SEND ON TERMINAL
+        i++;  //COUNTER INCREMENT
+        
+        if(i >= BUFFER_SIZE) //IF LIMIT CROSS
+        {
+            i = 0;   //RESET COUNTER
+        }
+    }
+//NO NEED TO USE BELOW DATA LOGIC   
+//i = 0;
+//bufferReadingIndex = 0;
+}
+        
\ No newline at end of file

diff -r 000000000000 -r c831d14afee7 mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Mon Jul 20 04:34:34 2020 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#cf4f12a123c05fcae83fc56d76442015cb8a39e9

diff -r 000000000000 -r c831d14afee7 resources/official_armmbed_example_badge.png
Binary file resources/official_armmbed_example_badge.png has changed