Fixed bug that EthernetInterface doesn't detect change of connection status on ARCH_MAX board.

ARCH_MAX board uses 0x01 as PHY address, different from other NUCLEO STM32 boards. To faciliate change of PHY address of customized boards, a configuration entry eth-phyaddr was added and can be overriden as needed in mbed_app.json by adding "stm32-emac.eth-phyaddr": X. Macro ETH_ARCH_PHY_ADDRESS was also renamed to ETH_PHY_ADDRESS, because it is not only used by ARCH_MAX board but also other boards.

Author: Zhiyonh Li

features/netsocket/emac-drivers/TARGET_STM/mbed_lib.json

@@ -2,7 +2,8 @@
     "name": "stm32-emac",
     "config": {
         "eth-rxbufnb": 4,
-        "eth-txbufnb": 4
+        "eth-txbufnb": 4,
+        "eth-phyaddr": 0
     },
     "target_overrides": {
         "NUCLEO_F207ZG": {

features/netsocket/emac-drivers/TARGET_STM/stm32xx_emac.cpp

@@ -43,7 +43,7 @@
 #define THREAD_PRIORITY         (osPriorityHigh)
 
 #define PHY_TASK_PERIOD_MS      200
-#define ETH_ARCH_PHY_ADDRESS    (0x00)
+#define ETH_PHY_ADDRESS         MBED_CONF_STM32_EMAC_ETH_PHYADDR
 
 #define STM_HWADDR_SIZE         (6)
 #define STM_ETH_MTU_SIZE        1500
@@ -282,7 +282,7 @@ bool STM32_EMAC::low_level_init_successful()
     EthHandle.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE;
     EthHandle.Init.Speed = ETH_SPEED_100M;
     EthHandle.Init.DuplexMode = ETH_MODE_FULLDUPLEX;
-    EthHandle.Init.PhyAddress = ETH_ARCH_PHY_ADDRESS;
+    EthHandle.Init.PhyAddress = ETH_PHY_ADDRESS;
 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
     MACAddr[0] = MBED_MAC_ADDR_0;
     MACAddr[1] = MBED_MAC_ADDR_1;