YX ZHANG / WIZnet_Library

This is WIZnet Ethernet Interface using Hardware TCP/IP chip, W5500, W5200 and W5100. One of them can be selected by enabling it in wiznet.h.

Fork of WIZnet_Library by WIZnet

Diff: WIZnetInterface/WIZnet/W5500.cpp

Revision:
9:f390679a0468
Parent:
6:ca8405b9564d
diff -r cb8808b47e69 -r f390679a0468 WIZnetInterface/WIZnet/W5500.cpp
--- a/WIZnetInterface/WIZnet/W5500.cpp	Sun May 31 10:25:40 2015 +0000
+++ b/WIZnetInterface/WIZnet/W5500.cpp	Mon Jun 04 14:31:13 2018 +0000
@@ -45,20 +45,28 @@
 WIZnet_Chip* WIZnet_Chip::inst;
 
 WIZnet_Chip::WIZnet_Chip(PinName mosi, PinName miso, PinName sclk, PinName _cs, PinName _reset):
-    cs(_cs), reset_pin(_reset)
+    cs(_cs)
 {
     spi = new SPI(mosi, miso, sclk);
     cs = 1;
-    reset_pin = 1;
+    if(_reset != NC){
+        reset_pin = new DigitalOut(_reset);
+        *reset_pin = 1;
+    }else
+        reset_pin = NULL;
     inst = this;
 }
 
 WIZnet_Chip::WIZnet_Chip(SPI* spi, PinName _cs, PinName _reset):
-    cs(_cs), reset_pin(_reset)
+    cs(_cs)
 {
     this->spi = spi;
     cs = 1;
-    reset_pin = 1;
+    if(_reset != NC){
+        reset_pin = new DigitalOut(_reset);
+        *reset_pin = 1;
+    }else
+        reset_pin = NULL;
     inst = this;
 }
 
@@ -149,12 +157,13 @@
 // Reset the chip & set the buffer
 void WIZnet_Chip::reset()
 {
-    reset_pin = 1;
-    reset_pin = 0;
-    wait_us(500); // 500us (w5500)
-    reset_pin = 1;
-    wait_ms(400); // 400ms (w5500)
-
+    if(reset_pin != NULL){
+        *reset_pin = 1;
+        *reset_pin = 0;
+        wait_us(500); // 500us (w5500)
+        *reset_pin = 1;
+        wait_ms(400); // 400ms (w5500)
+    }
 #if defined(USE_WIZ550IO_MAC)
     reg_rd_mac(SHAR, mac); // read the MAC address inside the module
 #endif