Posted on May 17, 2011 at 11:31Hi,
I have a serious problem.
I connected to EMI bus of STR912FAW44 slow device whice required at least 22 wait states at 96MHz on CS2.
When I read/Write to the device the system crushed. The only way to work is to add only 1 wait state.
It seems that it affects on internal bus of the STR912.
Below my code:
EMI_InitStruct.EMI_Bank_IDCY=0x02;
EMI_InitStruct.EMI_Bank_WSTRD=22 ;
EMI_InitStruct.EMI_Bank_WSTWR=22 ;
EMI_InitStruct.EMI_Bank_WSTROEN= 0;
EMI_InitStruct.EMI_Bank_WSTWEN= 0;
EMI_InitStruct.EMI_Bank_MemWidth= EMI_Width_Byte;
EMI_InitStruct.EMI_Bank_WriteProtection= EMI_Bank_NonWriteProtect;
EMI_InitStruct.EMI_PageModeRead_TransferLength= EMI_4Data;
EMI_InitStruct.EMI_PageModeRead_Selection= EMI_NormalMode;
EMI_Init( EMI_Bank2, &EMI_InitStruct);/*use Bank2 (CS2)*/
Anybody have an idea ?
