雄介 太田
UDP通信のサンプルプログラム
Dependencies: EthernetInterface mbed-rtos mbed
Revision 0:e0ec056e8895, committed 2015-04-06
- Comitter:
- yusuke_kyo
- Date:
- Mon Apr 06 14:58:18 2015 +0000
- Child:
- 1:617727625d66
- Commit message:
- UDP??????????
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.lib Mon Apr 06 14:58:18 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/EthernetInterface/#2fc406e2553f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Apr 06 14:58:18 2015 +0000
@@ -0,0 +1,73 @@
+/*UDP通信サンプル
+ 自分：mbedAから相手：mbedBへのデータ送信方法、相手：mbedBから自分：mbedAへのデータ受信方法*/
+#include "mbed.h"
+#include "EthernetInterface.h"
+
+Serial pc(USBTX, USBRX); // tx, rx
+
+const char* A_ADDRESS = "192.168.1.1";
+const int A_PORT = 1000;
+
+const char* B_ADDRESS = "192.168.1.2";
+const int B_PORT = 2000;
+
+int main() {
+
+ char u_packet[2];
+ u_packet[0]=0x41; u_packet[1]=0x42; //ex.
+ char u_buff[10];
+
+ EthernetInterface eth;
+ eth.init(A_ADDRESS, "255.255.255.0", ""); // Use hard IP
+ pc.printf("IP : %s\n", eth.getIPAddress());
+ if (eth.connect() < 0) {
+ pc.printf("Failed to connect\n\r");
+ return -1;
+ }
+
+ UDPSocket sockA;
+ if (sockA.bind(A_PORT) < 0) {
+ pc.printf("Failed to bind UDP Socket to PORT : %d\n\r", A_PORT);
+ return -1;
+ }
+ else pc.printf("Bind UDP Socket to PORT : %d\n\r", A_PORT);
+ sockA.set_blocking(false);
+
+ Endpoint EndpointA;
+ EndpointA.set_address(A_ADDRESS, A_PORT);
+
+ Endpoint EndpointB;
+ EndpointB.set_address(B_ADDRESS, B_PORT);
+
+ /*-----------
+ MAIN ROOP
+ -----------*/
+ while(1) {
+ /*--send--*/
+ pc.printf("Send : %s\n", u_packet);
+ int n_send=sockA.sendTo(EndpointB, (char*)u_packet, sizeof(u_packet));
+ wait_ms(1);
+
+ if(n_send < 0){
+ pc.printf("Send unsuccessfully\n");
+ return 0;
+ }
+ else pc.printf("Sent %d bytes Successfully!\n",n_send);
+ /*-receive--*/
+ int n_receive=sockA.receiveFrom(EndpointB, (char*)u_buff, sizeof(u_buff));
+ wait_ms(1);
+
+ if(n_receive < 0){
+ pc.printf("Receive unsuccessfully\n");
+ return 0;
+ }
+ else {
+ pc.printf("Received %d byte Successfully! %s\n",n_receive);
+ pc.printf("Received : %s\n",u_buff);
+ }
+ }
+
+ sockA.close(false);
+ eth.disconnect();
+ return 0;
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Mon Apr 06 14:58:18 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#d3d0e710b443
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Apr 06 14:58:18 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/487b796308b0 \ No newline at end of file