tcp example

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Comitter:
minamikawa
Date:
Wed Jan 19 08:31:23 2022 +0000
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first_commit

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diff -r 000000000000 -r 4e0f31b64b24 .gitignore
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+.build
+.mbed
+projectfiles
+*.py*
diff -r 000000000000 -r 4e0f31b64b24 CONTRIBUTING.md
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+# 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 4e0f31b64b24 README.md
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+![](./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 4e0f31b64b24 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jan 19 08:31:23 2022 +0000
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+    
+
+#include "mbed.h" //MbedOS 5.15
+#include "EthernetInterface.h"
+ 
+#define BUFFSIZE 50
+ 
+#define PORT            80
+ 
+DigitalOut led1(LED1);
+ 
+EthernetInterface net;
+TCPSocket server;
+TCPSocket* client;
+SocketAddress clientAddress;
+ 
+char   *in_buffer;
+char   *out_buffer;
+
+static const char*          mbedIP       = "192.168.0.32";  //IP 
+static const char*          mbedMask     = "255.255.255.0";  // Mask
+static const char*          mbedGateway  = "192.168.0.0";    //Gateway
+
+ 
+int main (void){
+    printf("TCP Echo starting...\n");
+    int net_stat;
+//#ifndef ROUTER
+    net.disconnect();
+    net_stat = net.set_network(mbedIP,mbedMask,mbedGateway); //set ip, mask, gateway to net
+    printf("set IP status: %i\n",net_stat);
+//#endif
+    net_stat = net.connect(); //connect to network
+    printf("connect status: %i\n",net_stat);
+ 
+    SocketAddress ip; //make socket for local ip address 
+    net.get_ip_address(&ip); //get a info from net
+    const char *p_ip = ip.get_ip_address();
+    printf("IP address: %s and Port: %d\n", p_ip ? p_ip : "None" , PORT );
+    SocketAddress mask;
+    net.get_netmask(&mask);
+    const char *p_mask = mask.get_ip_address();
+    printf("Netmask: %s\n", p_mask ? p_mask : "None");
+    SocketAddress gateway;
+    net.get_gateway(&gateway);
+    const char *p_gateway = gateway.get_ip_address();
+    printf("Gateway: %s\n", p_gateway ? p_gateway : "None");
+    
+    if(ip){ 
+        server.open(&net); //open a network socket using info of net
+        server.bind(PORT); //bind the socket to a port which receive data
+        server.listen(1); //prepare for incoming connections
+        while (1) {
+            
+            printf("Server bound and listening\n");
+            client = server.accept(); //wait until connection has done
+            client->set_blocking(false);
+            client->getpeername(&clientAddress);
+            const char *p_clientAddress = clientAddress.get_ip_address();
+            printf("Client connected from IP address: %s\n", p_clientAddress ? p_clientAddress : "None");
+            
+            bool b = true;
+            while (b) {
+                in_buffer = new char[BUFFSIZE];
+                int n = client->recv(in_buffer, BUFFSIZE);
+                
+                printf("%d\n", n);
+                
+                if (n == 0) {
+                    printf("Client disconnected\n");
+                    b = false;
+                }else if(n == NSAPI_ERROR_WOULD_BLOCK){
+                    //printf("data is not here\n");
+                }else{
+                    in_buffer[n] = '\0';
+                    printf("Received message from Client :'%s'\n", in_buffer);
+                    out_buffer = new char[BUFFSIZE];
+                    n = sprintf(out_buffer,"Echo - %s", in_buffer);
+                    
+                    printf("Sending echo to client\n");
+                    //client->send(out_buffer, n);
+                    led1 =! led1;
+                    delete []out_buffer;
+                }
+                led1 =! led1;
+                delete []in_buffer;
+                wait_us(10000);
+            }
+            client->close();
+        }
+    }else{
+            printf("No IP\n");
+            net.disconnect();
+            printf("Program end\n");
+    }
+}
\ No newline at end of file
diff -r 000000000000 -r 4e0f31b64b24 mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Wed Jan 19 08:31:23 2022 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#b1796dedeb8accde1cbaecf136fab96895e23d81
diff -r 000000000000 -r 4e0f31b64b24 resources/official_armmbed_example_badge.png
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