Hello Vien,
Likely you will need to perform some port IO to read from your device (see Library >> Utility >> Port IO). However, you will need more information regarding how to communicate with your device in order to achieve success. If you provide additional information in your posts (what EPROM are you trying to read, how are you trying to read it, and so forth), we may be able to offer further assitance.
Sincerely,
Jeremiah
National Instruments
