int main(void)
{
// Set clock to 168MHz
CLOCK_SetClockTo168MHz();
// Delay initialization
DELAY_Init();
// Enable clock for GPIOD
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
// Initialize PD13 and PD15 as output for orange and blue LED
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_15;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_Init(GPIOD, &GPIO_InitStruct);
// External interrupt initialization
EXTI0_Init();
while (1)
{
// Toggle blue LED (PD15) every 5s
GPIO_ToggleBits(GPIOD, GPIO_Pin_15);
DELAY_Ms(5000);
}
}
/*
* -----------------------------------------------------------------------------
* Function Name: MAC_SystemSleep
* Purpose:
* Params:
* Returns:
* Note:
* ----------------------------------------------------------------------------
*/
void MAC_SystemSleep(void)
{
U8_T XDATA temp;
/* disable mac receive */
mac_ReadReg(MAC_MEDIUM_STATUS_MODE_REG, &temp, 1);
temp &= 0xfb;
mac_WriteReg(MAC_MEDIUM_STATUS_MODE_REG, &temp, 1);
DELAY_Ms(500);
PCON = SWB_;
PCON |= STOP_;
DELAY_Ms(500);
/* enable mac receive */
mac_ReadReg(MAC_MEDIUM_STATUS_MODE_REG, &temp, 1);
temp |= 4;
mac_WriteReg(MAC_MEDIUM_STATUS_MODE_REG, &temp, 1);
} /* End of MAC_SystemSleep() */
/*
* ----------------------------------------------------------------------------
* Function Name: MAC_LinkSpeedChk
* Purpose:
* Params: none
* Returns: 100: Ethernet is link to 100M
* 10 : Ethernet is link to 10M
* 0 : not link
* Note:
* ----------------------------------------------------------------------------
*/
U8_T MAC_LinkSpeedChk(void)
{
mac_ReadReg(MAC_WAKEUP_LINK_INT_STATUS_REG, &mac_InterruptStatus, 1);
if (mac_InterruptStatus & STATUS_PRIMARY_IS_LINK_UP)
{
if (PBDP->MacInfo.LinkSpeed == 0)
{
if (PBDP->MacInfo.NetworkType != MAC_FORCE_ENBEDDED_PHY_10_HALF)
{
mac_GetMediaType();
}
else
{
PBDP->MacInfo.FullDuplex = 0;
PBDP->MacInfo.LinkSpeed = 10;
PBDP->MacInfo.MediumLinkType = MEDIUM_ENABLE_RECEIVE;
mac_WriteReg(MAC_MEDIUM_STATUS_MODE_REG, &PBDP->MacInfo.MediumLinkType, 1);
}
/* start operation */
mac_StartOperate();
DELAY_Ms(0x30);
}
}
else
{
if (PBDP->MacInfo.LinkSpeed)
{
PBDP->MacInfo.LinkSpeed = 0;
/* disable receive */
PBDP->MacInfo.MediumLinkType &= ~MEDIUM_ENABLE_RECEIVE;
mac_WriteReg(MAC_MEDIUM_STATUS_MODE_REG, &PBDP->MacInfo.MediumLinkType, 1);
STOE_WaitHwReleaseRcvBuf();
/* stop operation and reset Ethernet MAC packet buffer */
mac_StopOperate();
if (PBDP->MacInfo.NetworkType != MAC_FORCE_ENBEDDED_PHY_10_HALF)
{
PHY_WatchDog();
}
}
}
return PBDP->MacInfo.LinkSpeed;
} /* End of MAC_LinkSpeedChk */
/*
* ----------------------------------------------------------------------------
* Function Name: MAC_Init
* Purpose: initial all registers and variables of MAC.
* Params: network_type -0: auto- negotiation
* -1: fixed 100 full speed.
* -2: fixed 100 half speed.
* -3: fixed 10 full speed.
* -4: fixed 10 half speed.
* Returns:
* Note:
* ----------------------------------------------------------------------------
*/
void MAC_Init(U8_T network_type)
{
U8_T XDATA temp[3];
/* read MAC address*/
mac_ReadReg(MAC_ADDR_REG, PNetStation->CurrStaAddr, MAC_ADDRESS_LEN);
/* use embedded phy */
temp[0] = (PHY_SELECT_EMBEDDED | PHY_INTERNAL_PHY_OPERA_STATE | BIT1);
mac_WriteReg(MAC_PHY_CTL_REG, temp, 1);
/* phy power up */
PHY_PowerUp();
/* reset embedded phy */
temp[0] = (PHY_SELECT_EMBEDDED | BIT1);
mac_WriteReg(MAC_PHY_CTL_REG, temp, 1);
DELAY_Ms(2);
/* set embedded phy to operating mode */
temp[0] = (PHY_SELECT_EMBEDDED | PHY_INTERNAL_PHY_OPERA_STATE | BIT1);
mac_WriteReg(MAC_PHY_CTL_REG, temp, 1);
/* stop & reset MAC operation */
mac_StopOperate();
if (network_type != FORCE_EMBEDDED_PHY_10_HALF)
{
/* phy initialize. */
PHY_Init(network_type);
}
PBDP->MacInfo.MediumLinkType = MEDIUM_ENABLE_TX_FLOWCTRL;
PBDP->MacInfo.FullDuplex = 1;
switch (network_type)
{
default:
case AUTO_NEGOTIATION:
PBDP->MacInfo.NetworkType = MAC_AUTO_NEGOTIATION;
PBDP->MacInfo.MediumLinkType|=(MEDIUM_FULL_DUPLEX_MODE | MEDIUM_MII_100M_MODE |
MEDIUM_ENABLE_RX_FLOWCTRL);
break;
case FIXED_100_FULL:
PBDP->MacInfo.NetworkType = (MAC_LINK_100M_SPEED | MAC_LINK_FULL_DUPLEX);
PBDP->MacInfo.MediumLinkType|=(MEDIUM_FULL_DUPLEX_MODE | MEDIUM_MII_100M_MODE |
MEDIUM_ENABLE_RX_FLOWCTRL);
break;
case FIXED_100_HALF:
PBDP->MacInfo.NetworkType = MAC_LINK_100M_SPEED;
PBDP->MacInfo.MediumLinkType |= MEDIUM_MII_100M_MODE;
break;
case FIXED_10_FULL:
PBDP->MacInfo.NetworkType = (MAC_LINK_10M_SPEED | MAC_LINK_FULL_DUPLEX);
PBDP->MacInfo.MediumLinkType |= (MEDIUM_FULL_DUPLEX_MODE |
MEDIUM_ENABLE_RX_FLOWCTRL);
break;
case FIXED_10_HALF:
PBDP->MacInfo.NetworkType = MAC_LINK_10M_SPEED;
break;
case FORCE_EMBEDDED_PHY_10_HALF:
PBDP->MacInfo.NetworkType = MAC_FORCE_ENBEDDED_PHY_10_HALF;
PBDP->MacInfo.MediumLinkType = 0;
break;
}
/* set medium status */
mac_WriteReg(MAC_MEDIUM_STATUS_MODE_REG, &PBDP->MacInfo.MediumLinkType, 1);
/* set IPG */
temp[0] = 0x2b;
temp[1] = 0x16;
temp[2] = 0x95;
mac_WriteReg(MAC_IPG_CTL_REG, temp, 3);
/* set RX filter. */
temp[0] = BIT6;
mac_WriteReg(MAC_RX_CTL_REG, temp, 1);
MAC_SetRxFilter(MAC_RCV_BROADCAST);
PBDP->MacInfo.LinkSpeed = 0; // Ethernet not linkup.
/* decide interrupt mask */
#if (MAC_GET_INTSTATUS_MODE == MAC_INTERRUPT_MODE)
PBDP->MacInfo.InterruptMask = PRIMARY_LINK_CHANGE_ENABLE;
#endif
} /* End of MAC_Init() */
