Using the develop board to program external eeprom

Hardware questions and issues with the FV-1

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jovesdies
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Joined: Wed Feb 25, 2009 3:55 am

Using the develop board to program external eeprom

Post by jovesdies »

Hi, is it possible to connect the develop board with external eeprom (24lc32A) that is soldered in an existing module? Must I connect the sda and scl of develop board to the scl and sda of external eeprom only?
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frank
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Post by frank »

This would depend on the module the external eeprom is in. The 24lc32a can have a write protect pin set so you cannot write to it without changing the state of that pin. If it is not set then in theory you could write to it as it is a purely s/w controlled write at that time. If it is an OCT SKRM module then yes, we do not use the write protect pin so it is just s/w controlled writes, if someone else made the module then you will need to examine the circuit to determine if possible. To write you will need at least sda, scl and gnd.
Frank Thomson
Experimental Noize
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