[tyntop]

Hi,
Me again, with another query, I have been looking at the Datalogger as I am interested in this, because I cant always leave my Pc on. So this would be good for me, I am assuming that when it is sorted, that when your pc is turned on and you have cumulus up and running, you can download the data stored to the cumulus programme.

I am there fore wondering why there are a few different IC part numbers listed in the different RX board part lists,

I have the v4.03 RX board and I have noticed that the IC listed for that board : AT45DB011D-SSH-B only has 1mb memory capacity.

The IC on the parts list I have for the v4.02 RX board is a : AT45DB161D which has a 16mb memory capacity.

I have also been looking around and found an IC : AT45DB041E-SSHN-B which has a 4mb capacity.

I am just wondering if there is a specific reason for the use of the 1mb IC on the v4.03 RX board or can a chip of the same family with a higher capacity be used ?

Regards
Tyntop.

[werk_ag]

Hi tyntop

This is a good question. The answer certainly will clarify many others about this matter.
The only chip that can be used either in the RX v4.02 either in the RX v4.03 boards, is the 1mbit AT45DB011D-SSH-B. Any other chip will not work.

The main reason for using that specific 1mbit chip and not any other with a larger capacity, even of the same family, is for compatibility. The logger will behave like a Davis data logger, and a larger capacity chip is not supported.

Certainly you have an very outdated RX v.4.02 parts list, in which there is a reference for other IC, but is also stated "Not required, not used". At that time, I also thought that doing some cheat to fool the Davis protocol, a 4mbit chip could be used, but I was wrong.