Reading from External Hex Address...

[aratti]

You can use three push-buttons. Two for up & down to select the address you want to send out. once you have the wanted address on the LCD then you press the send button. This command SEROUT your address code and immediatly you SERIN to listen the answer that you will direct to the LCD after your maths manipulations.

I have no idea of how many codes you need to handle, but if they are too many and will not fit in the internal eeprom, than you have the chance to use an external memory chip via I2C.

Al.

[sbouda]

Thanks for that - that gave me an idea on where to start and how to go about it. Ill have a crack at the SEROUT and SERIN and see what i can come up with.

Ill be limiting the list of addresses to about 10, to the ones that i actually want and if they dont fit or i need more, I will work around some form of external memory.

Right, ill go and see what i can do. Will post back soon.

[skimask]

Do you have the specifications of Nissan's Consult protocol?
It's not just plain 'serial' data, it's a lot more complicated than that, a lot more complicated than even ISO9141-2.

[sbouda]

The only thing i could find on the protocol was this PDF which explains it. http://www.plmsdevelopments.com/imag...ds_Issue_6.pdf


Edit: After a bit of searching, i found a few posts by oldcarguy85 about a similar thing that he has done so im looking into it.