Changeset 10674 for firmware/FSC/src/w5100_spi_interface.c

Timestamp:

05/12/11 10:15:41 (14 years ago)

Author:

neise

Message:

ethernet with user interface test

File:

• firmware/FSC/src/w5100_spi_interface.c (modified) (1 diff)

firmware/FSC/src/w5100_spi_interface.c

@@ -9 +9 @@
 
 //-----------------------------------------------------------------------------
+// INTERFACE CONTROL VARS
+
+bool w5100_needs_reset = true;
+bool w5100_needs_init = true;
+bool w5100_ready = false;
+
+U08 w5100_caretaker() {
+U08 socket_status;
+        if (w5100_needs_reset)
+                w5100_reset();
+                
+        socket_status = w5100_sock_status();
+        
+        if (socket_status == SR_SOCK_ESTABLISHED) {
+                w5100_ready = true;
+                // everything is fine... 
+                return 0;
+        }
+        else if(socket_status < SR_SOCK_ESTABLISHED) {
+        // it might be LISTENING ... or not even OPEN
+                if (socket_status == SR_SOCK_CLOSED) {
+                        w5100_init();
+                }
+                if (socket_status == SR_SOCK_INIT) {
+                        w5100_init();
+                }
+                if (socket_status == SR_SOCK_LISTEN) {
+                        
+                }
+        }       
+        else { // all other socket states need a reset
+                w5100_needs_reset = true;
+        }
+w5100_ready = false;
+return 1;
+}
+
+void w5100_reset() {
+        PORTB &= ~(1<<PB2); //#reset = LOW --> W5100 is in reset ... 
+        _delay_ms(50); //reset
+        
+        PORTB |= 1<<PB2; //#reset = HIGH --> W5100 is active
+        _delay_ms(5);           // give it 5ms to accomodate.
+        w5100_needs_reset = false;
+}
+
 
 void w5100_write( U16 addr, U08 data)