STM32CubeMx can not get MAC address ?

[antonius]

Posted on July 28, 2015 at 14:39

Guys,

I tried to setup ethernet connection using STM32F107VCT6, DP83848 and STM32CubeMX, After generating the code, I can see the IP address on this function

oid MX_LWIP_Init(void)
{
IP_ADDRESS[0] = 10;
IP_ADDRESS[1] = 0;
IP_ADDRESS[2] = 0;
IP_ADDRESS[3] = 20;
NETMASK_ADDRESS[0] = 255;
NETMASK_ADDRESS[1] = 255;
NETMASK_ADDRESS[2] = 255;
NETMASK_ADDRESS[3] = 0;
GATEWAY_ADDRESS[0] = 10;
GATEWAY_ADDRESS[1] = 0;
GATEWAY_ADDRESS[2] = 0;
GATEWAY_ADDRESS[3] = 1;
/* Initilialize the LwIP stack */
lwip_init();
IP4_ADDR(&ipaddr, IP_ADDRESS[0], IP_ADDRESS[1], IP_ADDRESS[2], IP_ADDRESS[3]);
IP4_ADDR(&netmask, NETMASK_ADDRESS[0], NETMASK_ADDRESS[1] , NETMASK_ADDRESS[2], NETMASK_ADDRESS[3]);
IP4_ADDR(&gw, GATEWAY_ADDRESS[0], GATEWAY_ADDRESS[1], GATEWAY_ADDRESS[2], GATEWAY_ADDRESS[3]); 
/* add the network interface */
netif_add(&gnetif, &ipaddr, &netmask, &gw, NULL, ðernetif_init, ðernet_input);
/* Registers the default network interface */
netif_set_default(&gnetif);
if (netif_is_link_up(&gnetif))
{
/* When the netif is fully configured this function must be called */
netif_set_up(&gnetif);
}
else
{
/* When the netif link is down this function must be called */
netif_set_down(&gnetif);
} 
/* USER CODE BEGIN 3 */
HAL_UART_Transmit(&huart1, ''Finished LWIP INIT IP ADDR\n'', 52, 1000);
/* USER CODE END 3 */
}

but I can not get the IP address and MAC address... Here's the function defining MAC address....I can not get it...

static void low_level_init(struct netif *netif)
{ 
uint32_t regvalue = 0;
HAL_StatusTypeDef hal_eth_init_status;
/* Init ETH */
uint8_t MACAddr[6] ;
heth.Instance = ETH;
heth.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE;
heth.Init.Speed = ETH_SPEED_10M;
heth.Init.DuplexMode = ETH_MODE_FULLDUPLEX;
heth.Init.PhyAddress = 1;
MACAddr[0] = 0x00;
MACAddr[1] = 0x80;
MACAddr[2] = 0xE1;
MACAddr[3] = 0x00;
MACAddr[4] = 0x00;
MACAddr[5] = 0x00;
heth.Init.MACAddr = &MACAddr[0];
heth.Init.RxMode = ETH_RXPOLLING_MODE;
heth.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE;
heth.Init.MediaInterface = ETH_MEDIA_INTERFACE_RMII;
hal_eth_init_status = HAL_ETH_Init(&heth);
if (hal_eth_init_status == HAL_OK)
{
/* Set netif link flag */ 
netif->flags |= NETIF_FLAG_LINK_UP;
}
/* Initialize Tx Descriptors list: Chain Mode */
HAL_ETH_DMATxDescListInit(&heth, DMATxDscrTab, &Tx_Buff[0][0], ETH_TXBUFNB);
/* Initialize Rx Descriptors list: Chain Mode */
HAL_ETH_DMARxDescListInit(&heth, DMARxDscrTab, &Rx_Buff[0][0], ETH_RXBUFNB);
#if LWIP_ARP || LWIP_ETHERNET 
/* set MAC hardware address length */
netif->hwaddr_len = ETHARP_HWADDR_LEN;
/* set MAC hardware address */
netif->hwaddr[0] = heth.Init.MACAddr[0];
netif->hwaddr[1] = heth.Init.MACAddr[1];
netif->hwaddr[2] = heth.Init.MACAddr[2];
netif->hwaddr[3] = heth.Init.MACAddr[3];
netif->hwaddr[4] = heth.Init.MACAddr[4];
netif->hwaddr[5] = heth.Init.MACAddr[5];
/* maximum transfer unit */
netif->mtu = 1500;
/* Accept broadcast address and ARP traffic */
/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
#if LWIP_ARP
netif->flags |= NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;
# else 
netif->flags |= NETIF_FLAG_BROADCAST;
#endif /* LWIP_ARP */
/* Enable MAC and DMA transmission and reception */
HAL_ETH_Start(&heth);
/**** Configure PHY to generate an interrupt when Eth Link state changes ****/
/* Read Register Configuration */
HAL_ETH_ReadPHYRegister(&heth, PHY_MICR, ®value);
regvalue |= (PHY_MICR_INT_EN | PHY_MICR_INT_OE);
/* Enable Interrupts */
HAL_ETH_WritePHYRegister(&heth, PHY_MICR, regvalue );
/* Read Register Configuration */
HAL_ETH_ReadPHYRegister(&heth, PHY_MISR, ®value);
regvalue |= PHY_MISR_LINK_INT_EN;
/* Enable Interrupt on change of link status */
HAL_ETH_WritePHYRegister(&heth, PHY_MISR, regvalue); 
#endif /* LWIP_ARP || LWIP_ETHERNET */
}

How can I fix it ? Thanks

[Nickname5522_O]

Posted on July 28, 2015 at 17:51

Hi h.rick,

Do the issue described here is in relation with your post indicated in this link [DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/STM32%20LwIP&currentviews=106]Post ? And did you check the last answer provided by  STM32Cube-T? -Shahrzad-

[Tesla DeLorean]

Posted on July 28, 2015 at 17:54

I can not get it...

Ok, but what does that mean? The MAC address is a unique 48-bit value you supply to the Ethernet Controller so it can be identified as a specific node on the network.A DHCP server can assign you a locally unique IP address based on your MAC address, or you can assign yourself a static IP address, based on your understanding of your network. An IP address is needed on a TCP/IP network, supporting UDP and TCP packets, which a layered on top of the Ethernet packet protocol that needs MAC addresses.You need to stop opening new threads on ostensibly the same topic, and get yourself some working hardware to experiment with.