Zhengguo Sheng
Exercise 5: Ethernet
Dependencies: EthernetInterface mbed-rtos mbed
Revision 0:86b7ebac3e60, committed 2016-12-01
- Comitter:
- steveshun
- Date:
- Thu Dec 01 14:12:26 2016 +0000
- Commit message:
- Exercise 5: Ethernet
Changed in this revision
diff -r 000000000000 -r 86b7ebac3e60 EthernetInterface.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.lib Thu Dec 01 14:12:26 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/EthernetInterface/#4d7bff17a592
diff -r 000000000000 -r 86b7ebac3e60 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Dec 01 14:12:26 2016 +0000
@@ -0,0 +1,108 @@
+/*------------------------------------------------------------------------------------*/
+/* Ethernet UDP Server (to be used with Ethernet_UDP_client) */
+/*------------------------------------------------------------------------------------*/
+
+/*--COMPANY-----AUTHOR------DATE------------REVISION----NOTES-------------------------*/
+/* NXP mareikeFSL 2015.12.23 rev 1.0 initial */
+/* */
+/*------------------------------------------------------------------------------------*/
+/* This "Hello World" program is used in conjunction with the Ethernet_UDP_client */
+/* program. It communicates between two FRDM-K64F boards via the Ethernet protocol. */
+/* To use this program, you need to do the following: */
+/* - Connect an Ethernet cable between two FRDM-K64F boards (a crossover cable */
+/* is not required). */
+/* - Flash one board with Ethernet_UDP_client and the other with */
+/* Ethernet_UDP_server */
+/* - [optional] If you would like to see the "Hello World" output on your */
+/* monitor, install and open a terminal. Tera Term is used in the Wiki for */
+/* this program. */
+/*------------------------------------------------------------------------------------*/
+
+
+/*--INCLUDES----------------------------------------------------------------------------*/
+#include "mbed.h"
+#include "EthernetInterface.h"
+
+
+/*--DEFINES-----------------------------------------------------------------------------*/
+
+
+
+/*--CONSTANTS---------------------------------------------------------------------------*/
+const int PORT = 7; //arbitrary port
+
+static const char* SERVER_IP = "192.168.1.101"; //IP of server board
+static const char* MASK = "255.255.255.0"; //mask
+static const char* GATEWAY = "192.168.1.1"; //gateway
+
+
+/*--INITS-------------------------------------------------------------------------------*/
+Serial pc(USBTX, USBRX); //create PC interface
+EthernetInterface eth; //create ethernet
+UDPSocket server; //creat server
+Endpoint client; //create endpoint
+
+DigitalOut red(LED_RED); //debug led
+DigitalOut green(LED_GREEN); //debug led
+
+
+/*--VARIABLES---------------------------------------------------------------------------*/
+int n; //size of received message
+char counter[1] = {0}; //sample receive/send buffer
+
+
+/*--FUNCTION DECLARATIONS---------------------------------------------------------------*/
+void init_usb(void); //initializes pc.printf if required
+void init_eth(void); //initializes Ethernet
+void receive(void); //receives packets
+int main(void); //main
+
+
+/*--FUNCTION DEFINITIONS----------------------------------------------------------------*/
+
+/*****************************************************************************INIT_USB***/
+void init_usb(void)
+{
+ pc.baud(9600); //baud
+
+} //end init_usb()
+
+/*****************************************************************************INIT_ETH***/
+void init_eth(void)
+{
+ eth.init(SERVER_IP, MASK, GATEWAY); //set up IP
+ eth.connect(); //connect ethernet
+ pc.printf("\nSERVER - Server IP Address is %s\r\n", eth.getIPAddress()); //get server IP address;
+
+ server.bind(PORT); //bind server
+
+} //end init_eth()
+
+/******************************************************************************RECEIVE***/
+void receive(void)
+{
+ pc.printf("\nSERVER - Waiting for UDP packet...\r\n"); //wait for packet
+ n = server.receiveFrom(client, counter, sizeof(counter)); //receive message from client
+ counter[n] = '\0'; //add \0 to end of message
+
+ pc.printf("SERVER - Received '%i' from client %s\r\n", counter[0], client.get_address()); //print message and client
+ pc.printf("SERVER - Sending '%i' back to client %s\r\n", counter[0], client.get_address()); //print sending back
+ server.sendTo(client, counter, n); //send message
+
+} //end receive()
+
+/*********************************************************************************MAIN***/
+int main(void)
+{
+ red = 1;
+ green = 0; //server
+
+ init_usb(); //initialize the PC interface
+ init_eth(); //initialize the Ethernet connection
+
+ while (true) //repeat forever
+ {
+ receive(); //wait for message
+ }
+
+} //end main()
diff -r 000000000000 -r 86b7ebac3e60 mbed-rtos.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Thu Dec 01 14:12:26 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#dfc27975e193
diff -r 000000000000 -r 86b7ebac3e60 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Dec 01 14:12:26 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/87f2f5183dfb \ No newline at end of file