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Reading Problem from ADC

Question asked by arora.sameer on Jul 29, 2014
Latest reply on Jul 29, 2014 by Clive One
Hello, 
       I am reading from an external ADC in parallel interface(16 bits). I dont know what is wrong, only my port PE0 and PE1 are talking to the controller at 1V and rest all others taking at 3V. when I remove the connection from the ADC the ADC outputs as 3V signal, but when I connect to controller it goes back to 1V.

here is how I have configured

GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;           
     GPIO_InitStruct.GPIO_Speed = GPIO_Speed_100MHz;      
     GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;      
     GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;      
     GPIO_Init(GPIOE, &GPIO_InitStruct); 

Thanks

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