W7500P TCP UART 예제
Dependencies: mbed WIZnetInterface
W7500P 개발보드의 TCP 서버 예제 입니다.
텔넷포트(23)를 기본설정으로 사용중이며, DHCP를 통해 인터넷 연결설정이 됩니다.
Diff: main.cpp
- Revision:
- 1:ea9223739b1b
- Parent:
- 0:02f8a386a4ae
- Child:
- 2:97a6b36f2bc9
diff -r 02f8a386a4ae -r ea9223739b1b main.cpp --- a/main.cpp Mon Oct 16 02:20:05 2017 +0000 +++ b/main.cpp Tue Oct 12 06:49:09 2021 +0000 @@ -1,14 +1,60 @@ -// Print "Hello World" to the PC - -#include "mbed.h" - -Serial pc(USBTX, USBRX); - -int main() { - pc.baud(115200); - - - - pc.printf("Hello World\n"); - -} +#include "mbed.h" +#include "EthernetInterface.h" + +#define ECHO_SERVER_PORT 23 + +Serial pc(USBTX, USBRX); + +int main (void) +{ + pc.baud(115200); + + pc.printf("Hello World\n"); + pc.printf("Wait a second...\r\n"); + + uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x01, 0x02}; + EthernetInterface eth; + eth.init(mac_addr); //Use DHCP + eth.connect(); + pc.printf("Server IP Address is %s\r\n", eth.getIPAddress()); + + TCPSocketServer server; + server.bind(ECHO_SERVER_PORT); + server.listen(); + + while (true) + { + pc.printf("Wait for new connection...\r\n"); + TCPSocketConnection client; + server.accept(client); + client.set_blocking(false, 15000); // Timeout after (1.5)s + + pc.printf("Connection from: %s\r\n", client.get_address()); + char buffer[256]; + while (true) { + int n = client.receive(buffer, sizeof(buffer)); + if (n <= 0) break; + + // print received message to terminal + buffer[n] = '\0'; + pc.printf("Received message from Client :'%s'\r\n",buffer); + + // reverse the message + char temp; + for(int f = 0, l = n-1; f<l; f++,l--){ + temp = buffer[f]; + buffer[f] = buffer[l]; + buffer[l] = temp; + } + + // print reversed message to terminal + pc.printf("Sending message to Client: '%s'\r\n",buffer); + + // Echo received message back to client + client.send_all(buffer, n); + if (n <= 0) break; + } + client.close(); + } +} +