Re: Re: BL2100 Expansion headers (LCD) to add extra IOs

Hi Dave.
 
I would like to add more than digital IO.  Any success with analog inputs?
 
Thanks.
 
Stan  



On Wednesday, November 6, 2013 3:47 AM, "[email protected]" <[email protected]> wrote:
  
  
The answer is yes.  I have several designs that do just this.

Only limitation is the missing R/W line, so I have some ports as outputs and others as inputs.

Let me know if you want schematics.

Dave

>I was wondering one thing.  We are thinking about making a small board to add on extra IOs and using it with the expansion headers on the BL2100.  I can see from the dwg that there is PE7, A0-A3, and DB0-Db7.  So it seems like I can not use this using AuxIO because the IO bus PA0-7 is not available at the header.
>
>Just curious if anyone has ever tried to add IOs (analog and digital) to this by adding a board and trying to use the PE7 and also the DB0-DB7 available. 
>
>Aux IO is not difficult to program but without it, it seems it will be much slower.  Dont know, I have not done much ASM so I do not know how fast doing 8 bit readings would be.
>
>Just wanted to see if anyone out there has any experience trying to do this.
>
>Thanks
>
>Stan the man...
>
>------------------------------------
>
>