Kevin Braun / k64f_EthLink

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Dependents:   JRO_CR2 K64F_EthLink_HelloWorld frdm_test JRO_DDSv2

Files at this revision

API Documentation at this revision

Revision 4:9d2a4dc03170, committed 2016-05-19

Comitter:
loopsva
Date:
Thu May 19 17:20:55 2016 +0000
Parent:
3:fbd2336e1193
Commit message:
Changed from:
;
; uint32_t k64f_mdio_reg = ENET_EIR;
;
; To:
;
; uint32_t k64f_mdio_reg = ENET->EIR;

Changed in this revision

k64f_EthLink.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/k64f_EthLink.cpp	Fri Nov 07 22:05:00 2014 +0000
+++ b/k64f_EthLink.cpp	Thu May 19 17:20:55 2016 +0000
@@ -9,7 +9,7 @@
 
 //--------------------------------------------------------------------------------------------------------------------------------------//
 // Get Ethernet link status on the K64F
-
+/*
 int k64fEthLink::GetELink() {
     int mdio_timer = 0;
     uint32_t k64f_mdio_reg = ENET_EIR;
@@ -35,6 +35,69 @@
     if(k64f_mdio_reg & MDIO_MII_LINK_BITS) return(PHY_UP);
     return(PHY_DOWN);
 }
+*/
+//--------------------------------------------------------------------------------------------------------------------------------------//
+// Get Ethernet link status on the K64F
+/*
+ENET_Type miiSTR = {};
+
+int k64fEthLink::GetELink() {
+    int mdio_timer = 0;
+    uint32_t k64f_mdio_reg = miiSTR.EIR;
+    
+    //wait for MDIO interface to be ready
+    do {
+        k64f_mdio_reg = miiSTR.EIR;
+#ifdef RTOS_H
+        Thread::wait(1);
+#else   
+        wait_ms(1);
+#endif
+        mdio_timer++;
+    } while(((k64f_mdio_reg & MDIO_MII_READY_BIT) == 0) && (mdio_timer < 300));
+    if(mdio_timer > 298) {          //average is about 122mS
+        return(MDIO_TIMEOUT);       //timeout error
+    }   
+    
+    //get Basic Status Register
+    miiSTR.MMFR = MDIO_GET_LINK_REG;
+    wait_us(35);                    //20 is absolute minimum!!
+    k64f_mdio_reg = miiSTR.MMFR;      //get the phy result
+    if(k64f_mdio_reg & MDIO_MII_LINK_BITS) return(PHY_UP);
+    return(PHY_DOWN);
+}
+*/
+//--------------------------------------------------------------------------------------------------------------------------------------//
+// Get Ethernet link status on the K64F
+
+//see: mbed-dev/targets/cmsis/TARGET_K64F/MK64F12.h
+
+int k64fEthLink::GetELink() {
+    int mdio_timer = 0;
+    uint32_t k64f_mdio_reg = ENET->EIR;
+    
+    //wait for MDIO interface to be ready
+    do {
+        k64f_mdio_reg = ENET->EIR;
+#ifdef RTOS_H
+        Thread::wait(1);
+#else   
+        wait_ms(1);
+#endif
+        mdio_timer++;
+    } while(((k64f_mdio_reg & MDIO_MII_READY_BIT) == 0) && (mdio_timer < 300));
+    if(mdio_timer > 298) {          //average is about 122mS
+        return(MDIO_TIMEOUT);       //timeout error
+    }   
+    
+    //get Basic Status Register
+    ENET->MMFR = MDIO_GET_LINK_REG;
+    wait_us(35);                    //20 is absolute minimum!!
+    k64f_mdio_reg = ENET->MMFR;      //get the phy result
+    if(k64f_mdio_reg & MDIO_MII_LINK_BITS) return(PHY_UP);
+    return(PHY_DOWN);
+}
+
 #endif