ocrobot:alpha:w5500:main

差别

这里会显示出您选择的修订版和当前版本之间的差别。

到此差别页面的链接

--- ocrobot:alpha:w5500:main [2019/07/22 03:10] – [下载] 董凯萍
+++ ocrobot:alpha:w5500:main [2023/06/07 04:23] (当前版本) – 外部编辑 127.0.0.1
@@ 行 1: / 行 1: @@
+====== ALPHA W5500 以太网模块======
+W5500是一款SPI接口的独立以太网控制器。集成硬件协议栈，最大通信速度为100M，支持全双工和半双工。因包含硬件协议栈，对单片机资源消耗较少。
+===== 特点 =====
+  * 全硬件TCP/IP协议栈
+  * 8个独立的硬件Socket，各路通信互不影响
+  * 32bytes片上缓存供TCP/IP包处理
+  * 集成802.3以太网MAC
+  * 集成10BaseT / 100Base-T以太网PHY
+  * 主机接口:SPI高速串行外设接口（最高80Mhz ）
+  * 低功耗，工作温度40℃左右
+  * 支持掉电模式 & UDP网络唤醒
+  * 工作电压3.3V，I/O 5V耐压
+  * 支持自动协商（全/半双工，10M/100M)
+  * 不支持自动极性转换
+=====参考图片=====
+{{:ocrobot:alpha:w5500:w5500侧面435.png?nolink|}}
+{{:ocrobot:alpha:w5500:w5500正面435.png?nolink|}}
+=====例程=====
+**DHCP-based IP printer**
+本例程的主控为MEGA2560芯片。
+<code cpp>
+/*
+  DHCP-based IP printer
+ This sketch uses the DHCP extensions to the Ethernet library
+ to get an IP address via DHCP and print the address obtained.
+ using an Arduino Wiznet Ethernet shield.
+ Circuit:
+ * Ethernet shield attached to pins 10, 11, 12, 13
+ created 12 April 2011
+ modified 9 Apr 2012
+ by Tom Igoe
+ */
+#include <SPI.h>
+#include <Ethernet2.h>
+// Enter a MAC address for your controller below.
+// Newer Ethernet shields have a MAC address printed on a sticker on the shield
+byte mac[] = {
+x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02
+};
+// Initialize the Ethernet client library
+// with the IP address and port of the server
+// that you want to connect to (port 80 is default for HTTP):
+EthernetClient client;
+void setup() {
+  // Open serial communications and wait for port to open:
+  Serial.begin(9600);
+  // this check is only needed on the Leonardo:
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
+  // start the Ethernet connection:
+  Ethernet.w5500_cspin = 10;//主控为mega2560，若主控为atmel mgea328或者LGT8f328p则不需要该定义
+  if (Ethernet.begin(mac) == 0) {
+    Serial.println("Failed to configure Ethernet using DHCP");
+    // no point in carrying on, so do nothing forevermore:
+    for (;;)
+      ;
+  }
+  // print your local IP address:
+  Serial.print("My IP address: ");
+  for (byte thisByte = 0; thisByte < 4; thisByte++) {
+    // print the value of each byte of the IP address:
+    Serial.print(Ethernet.localIP()[thisByte], DEC);
+    Serial.print(".");
+  }
+  Serial.println();
+}
+void loop() {
+}
+</code>
+<WRAP center round info 100%>
+若主控为mega2560，则需要添加Ethernet.w5500_cspin = 10;
+若主控为atmel mgea328或者LGT8f328p则不需要添加。
+</WRAP>
+===== 下载 =====
+**数据手册：**
+{{ :ocrobot:alpha:w5500:w5500数据手册v1.3.pdf |W5500数据手册V1.3中文版}}
+{{ :ocrobot:alpha:w5500:c32843_w5500_2014-07-04.pdf |W5500 数据手册英文版}}
+**库：**{{ :ocrobot:alpha:w5500:ethernet2.zip |W5500库}}
+**原理图：**
+{{ :ocrobot:alpha:w5500:alpha_w5500_r4.pdf |OCROBOT ALPHA W5500原理图 R1}}