Re: port addresses > I was wondering if anyone has some kind of table or list to show > the address of all the ports and what each bit is for on each port. > Iam asking this because I was looking through some modified sonar code > as below and wondered how people know what address to write to and > what value to send to that address to enable and set-up the hardware. >  > In the code below there are lots of pokes and bit_set's to various > addresses. Where do I find out more about these addresses and what values > to send to them. >    If you haven't already done so, pick up a copy of the motorola chip guides (not sure which version of chip is used in the Handyboard 'A9 version? or E2?  Either way, these "Pink books" are absolutely essential to learning the addressing of the 68HC11.  Try motorola's website for more info.  I don't have the URL handy, sorry.   I'm sure there is probably a Handyboard users manual somewhere too that will give you more details on what controls what.  Check out the Handyboard site for more details.   Good luck,   Jim Munro