Posted on June 02, 2014 at 00:05
Still, you really should be old enough to do this by yourself, and I learn nothing from the exercise.
Make sure your board is jumpered correctly, and that the software you are building has the right configurations. That the network setting for the MAC and IP addresses are appropriate for what you are attaching it too. If this is not a new board you might want to check the clocks look right and nothing has been modified.
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/user_manual/DM00025pdf
pg 17?
STM32F2x7_ETH_LwIP_V1.1.0\Project\Standalone\httpserver\EWARM\Project.eww
STM32F2x7_ETH_LwIP_V1.1.0\Project\Standalone\httpserver\inc\main.h
/* MII and RMII mode selection, for STM322xG-EVAL Board(MB786) RevB ***********/
//#define RMII_MODE // User have to provide the 50 MHz clock by soldering a 50 MHz
// oscillator (ref SM7745HEV-0M or equivalent) on the U3
// footprint located under CN3 and also removing jumper on JP5.
// This oscillator is not provided with the board.
// For more details, please refer to STM3220G-EVAL evaluation
// board User manual (UM1057).
#define MII_MODE
/* Uncomment the define below to clock the PHY from external 25MHz crystal (only for MII mode) */
#ifdef MII_MODE
#define PHY_CLOCK_MCO
#endif
/* STM322xG-EVAL jumpers setting
+==========================================================================================+
+ Jumper | MII mode configuration | RMII mode configuration +
+==========================================================================================+
+ JP5 | 2-3 provide 25MHz clock by MCO(PA8) | Not fitted +
+ | 1-2 provide 25MHz clock by ext. Crystal | +
+ -----------------------------------------------------------------------------------------+
+ JP6 | 2-3 | 1-2 +
+ -----------------------------------------------------------------------------------------+
+ JP8 | Open | Close +
+==========================================================================================+
*/
