[ARM] STM32 interfacing with magjacks ?

[bianchi77]

How can I connect MagJacks to STM32F107 ?
Guys,

How can I connect MagJacks to STM32F107 ?

I saw from STM32F107 code :

01./* ETHERNET pins configuration */
02.  /* AF Output Push Pull:
03.  - ETH_MII_MDIO / ETH_RMII_MDIO: PA2
04.  - ETH_MII_MDC / ETH_RMII_MDC: PC1
05.  - ETH_MII_TXD2: PC2
06.  - ETH_MII_TX_EN / ETH_RMII_TX_EN: PB11
07.  - ETH_MII_TXD0 / ETH_RMII_TXD0: PB12
08.  - ETH_MII_TXD1 / ETH_RMII_TXD1: PB13
09.  - ETH_MII_PPS_OUT / ETH_RMII_PPS_OUT: PB5
10.  - ETH_MII_TXD3: PB8 */
11. 
12.  /* Configure PA2 as alternate function push-pull */
13.  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
14.  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
15.  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
16.  GPIO_Init(GPIOA, &GPIO_InitStructure);
17. 
18.  /* Configure PC1, PC2 and PC3 as alternate function push-pull */
19.  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2;
20.  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
21.  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
22.  GPIO_Init(GPIOC, &GPIO_InitStructure);
23. 
24.  /* Configure PB5, PB8, PB11, PB12 and PB13 as alternate function push-pull */
25.  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_8 | GPIO_Pin_11 |
26.                                GPIO_Pin_12 | GPIO_Pin_13;
27.  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
28.  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
29.  GPIO_Init(GPIOB, &GPIO_InitStructure);
30. 
31.  /**************************************************************/
32.  /*               For Remapped Ethernet pins                   */
33.  /*************************************************************/
34.  /* Input (Reset Value):
35.  - ETH_MII_CRS CRS: PA0
36.  - ETH_MII_RX_CLK / ETH_RMII_REF_CLK: PA1
37.  - ETH_MII_COL: PA3
38.  - ETH_MII_RX_DV / ETH_RMII_CRS_DV: PD8
39.  - ETH_MII_TX_CLK: PC3
40.  - ETH_MII_RXD0 / ETH_RMII_RXD0: PD9
41.  - ETH_MII_RXD1 / ETH_RMII_RXD1: PD10
42.  - ETH_MII_RXD2: PD11
43.  - ETH_MII_RXD3: PD12
44.  - ETH_MII_RX_ER: PB10 */
45. 
46.  /* ETHERNET pins remapp in STM3210C-EVAL board: RX_DV and RxD[3:0] */
47.  GPIO_PinRemapConfig(GPIO_Remap_ETH, ENABLE);

Thanks

 

[FvM]

As explained in the reference manual and datasheet, STM32 connects to ethernet trhough an extern PHY chip.

 

[bianchi77]

any popular and cheap chip or module for external PHY ? thanks

 

[FvM]

E.g. SMSC LAN8720

A few ARM processors from TI have an integrated PHY, but none from ST as far as I'm aware of.

 

[bianchi77]

Are there any integrated PHY on Atmel products ?
thanks

 

[FvM]

I don't think so.

 

[bianchi77]

do you know any popular modules for it ? I tried to find it, but couldn't find....