Dieter Graef / F7_Ethernet

Ethernet for Nucleo and Disco board STM32F746 works with gcc and arm. IAC is untested

Dependents:   STM32F746_iothub_client_sample_mqtt DISCO-F746NG_Ethernet Nucleo_F746ZG_Ethernet thethingsiO-DISCO_F746NG-mqtt ... more

Files at this revision

API Documentation at this revision

Revision 1:28ba13dd96f7, committed 2016-06-23

Comitter:
DieterGraef
Date:
Thu Jun 23 09:04:23 2016 +0000
Parent:
0:d26c1b55cfca
Commit message:
corrected MAC issue. The MAC is now 02:00:00:xx:xx:xx where xx is the sum over the unique device register

Changed in this revision

lwip-eth/arch/TARGET_STM/stm32f7_emac.c Show annotated file Show diff for this revision Revisions of this file 
diff -r d26c1b55cfca -r 28ba13dd96f7 lwip-eth/arch/TARGET_STM/stm32f7_emac.c
--- a/lwip-eth/arch/TARGET_STM/stm32f7_emac.c	Sun Jun 19 16:23:40 2016 +0000
+++ b/lwip-eth/arch/TARGET_STM/stm32f7_emac.c	Thu Jun 23 09:04:23 2016 +0000
@@ -26,12 +26,7 @@
 //#define EMAC_TRANSMIT_WAIT
 #define EMAC_T_WAIT 200
 
-#define MAC_ADDR_0   MBED_MAC_ADDR_0
-#define MAC_ADDR_1   MBED_MAC_ADDR_1
-#define MAC_ADDR_2   MBED_MAC_ADDR_2
-#define MAC_ADDR_3   MBED_MAC_ADDR_3
-#define MAC_ADDR_4   MBED_MAC_ADDR_4
-#define MAC_ADDR_5   MBED_MAC_ADDR_5
+
 
  /* LAN8742A PHY Address*/
 #define LAN8742A_PHY_ADDRESS            0x00U
@@ -48,6 +43,7 @@
 
 __ALIGN_BEGIN uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE]  __ALIGN_END; /* Ethernet Transmit Buffer */
 
+uint8_t macaddress[6];
 
 ETH_HandleTypeDef heth;
 uint32_t phy_status = 0;
@@ -255,10 +251,26 @@
  */
 static void stm32f7_low_level_init(struct netif *netif)
 {
-    uint8_t macaddress[6]= { MAC_ADDR_0, MAC_ADDR_1, MAC_ADDR_2, MAC_ADDR_3, MAC_ADDR_4, MAC_ADDR_5 };
-
+ 
     HAL_StatusTypeDef hal_eth_init_status;
-
+    uint8_t* sernoaddr=(uint8_t*)0x1FF0F420;
+    uint32_t serno =0;
+    uint32_t i;
+    uint8_t sernoid;
+    // sum over the Unique device ID register 96bits
+    for(i=0;i<12;i++)
+    {
+        serno=serno+sernoaddr[i];
+    }
+    macaddress[0]=2;
+    macaddress[1]=0;
+    macaddress[2]=0;
+    sernoid=(serno>>16)&0xff;
+    macaddress[3]=sernoid;
+    sernoid=(serno>>8)&0xff;
+    macaddress[4]=sernoid;
+    sernoid=(serno)&0xff;
+    macaddress[5]=sernoid;
     /* Init ETH */
 
      heth.Instance = ETH;
@@ -608,17 +620,36 @@
  */
 err_t eth_arch_enetif_init(struct netif *netif)
 {
+    uint8_t* sernoaddr=0x1FF0F420;
+    uint32_t serno =0;
+    uint32_t i;
+    uint8_t sernoid;
+    // sum over the Unique device ID register 96bits
+    for(i=0;i<12;i++)
+    {
+        serno=serno+sernoaddr[i];
+    }
+    macaddress[0]=2;
+    macaddress[1]=0;
+    macaddress[2]=0;
+    sernoid=(serno>>16)&0xff;
+    macaddress[3]=sernoid;
+    sernoid=(serno>>8)&0xff;
+    macaddress[4]=sernoid;
+    sernoid=(serno)&0xff;
+    macaddress[5]=sernoid;
+
     /* set MAC hardware address */
     netif->hwaddr_len = ETHARP_HWADDR_LEN;
 
 
   /* set netif MAC hardware address */
-    netif->hwaddr[0] = MAC_ADDR_0;
-    netif->hwaddr[1] = MAC_ADDR_1;
-    netif->hwaddr[2] = MAC_ADDR_2;
-    netif->hwaddr[3] = MAC_ADDR_3;
-    netif->hwaddr[4] = MAC_ADDR_4;
-    netif->hwaddr[5] = MAC_ADDR_5;
+    netif->hwaddr[0] = macaddress[0];
+    netif->hwaddr[1] = macaddress[1];
+    netif->hwaddr[2] = macaddress[2];
+    netif->hwaddr[3] = macaddress[3];
+    netif->hwaddr[4] = macaddress[4];
+    netif->hwaddr[5] = macaddress[5];
 
     /* maximum transfer unit */
     netif->mtu = 1500;