This Forum is Dedicated For all The Object Oriented PIC Lovers .......... The concept behind OOPic is straight forward. Use preprogrammed multitasking Objects from a library of highly optimized Objects to do all the work of interacting with the hardware. Then write small scripts in Basic, C, or Java syntax styles to control the Objects. During operation, the Objects run continuously and simultaneously in the background while the scripts run in the foreground telling the objects what to do.

Thursday, February 21, 2008

Re: [oopic] Re: using oDDELink

The ooPIC looks like a 256 byte EEPROM to any I2C master when
connected to the network bus. You have to know how to mask bits and
twiddle things, but the source Richard mentions shows how this is done.
The SCP pages in the manual help with the bit mask work as well. Using
SCP directly to the serial port is a little easier though I think.

DLC

rtstofer wrote:
> --- In oopic@yahoogroups.com, ooPIC Tech Support <dennis.clark@...>
> wrote:
>
>> Yes,
>>
>> You can talk to the ooPIC over the DDELink (network) port and it
>>
> will
>
>> look like a 256 byte EEPROM in terms of addressing. An easier way
>>
> to do
>
>> this is to talk to it over the serial link using SCP commands, they
>>
> are
>
>> WAY easier to do than the arcane bit masking that you'll have to do
>>
> if
>
>> you use the I2C link to the ooPIC.
>>
>
> If you can get oDDELink working with the PIC as the master and the
> OOPic as the slave, your life is simplified. The PIC just stuffs
> updated values into known locations of the OOPic memory as though it
> is an EEPROM. You probably need some kind of handshaking (via a flag
> variable) so that the OOPic doesn't grab an updated Lat while the Lo
> is stale.
>
> I would try using the I2C Tools to see how it works and then write
> the same functions for the PIC.
>
> Richard
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>

--
------------------------------------------------------
Dennis Clark ooPIC Tech Support
www.oopic.com
------------------------------------------------------


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