Kevin Braun
Provides a real-time Ethernet link status for the K64F, since the K64F lacks such a function.
Dependencies: EthernetInterface k64f_EthLink mbed-rtos mbed
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K64F_EthLink_HelloWorld
by 
Kevin Braun
Demo program for k64f_EthLink library.
IMPORTANT NOTE: The latest mbed builds (mbed 120, mbed-rtos 115, EthernetInterface 54) broke a few things in the K64F, including the k64f_EthLink - generates MDIO Timeout errors.
I recommend staying with the following mbed library versions until issues with the K64F are resolved.
mbed = 119 mbed-rtos = 111 EthernetInterface = 52
Diff: main.cpp
- Revision:
- 0:66507f292910
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Sep 30 21:41:06 2014 +0000
@@ -0,0 +1,44 @@
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "k64f_EthLink.h"
+
+EthernetInterface eth;
+k64fEthLink link;
+Serial pc(USBTX, USBRX);
+
+//--------------------------------------------------------------------------------------------------------------------------------------//
+// Check for a valid Ethernet Link, print ONLY on status change and keep count of link "downs"
+
+bool EthPhyUpT = false;
+int EthUpDownCnt = 0;
+
+int TestEthLink() {
+ int EthLinkStat = link.GetELink();
+ if((!(EthLinkStat)) && (EthPhyUpT == false)) {
+ pc.printf("Eth Link UP\r\n");
+ EthPhyUpT = true;
+ } else if(((EthLinkStat)) && (EthPhyUpT == true)){
+ EthUpDownCnt++;
+ pc.printf("Eth Link DOWN, count: %d\r\n", EthUpDownCnt);
+ EthPhyUpT = false;
+ }
+ if(EthLinkStat == MDIO_TIMEOUT) return(MDIO_TIMEOUT);
+ if(EthPhyUpT == true) return(PHY_UP);
+ return(PHY_DOWN);
+}
+
+//--------------------------------------------------------------------------------------------------------------------------------------//
+
+int main() {
+ pc.baud(230400);
+ pc.printf("\r\n\r\nBasic Ethernet Link Up / Down test for K64F\r\n");
+ int EthInitStatus = eth.init();
+
+ /* Finish up initialization here!!! */
+
+ while(1) {
+ Thread::wait(500);
+ int i = TestEthLink();
+ if(i == MDIO_TIMEOUT) pc.printf("MDIO Timeout!!!\r\n");
+ }
+}