Re: [VSCP] Question about demo_vscp_node_can128

[Ake H. G. P. A. <ak...@gr...>]

Congratz. That is a good feeling. Impressed by your work and by 
documenting your road ahead you help others who have the same questions. 
Thanks for that!

/Ake

Jean-Marc Beaune skrev 2014-07-23 00:42:
> I think I found my head around the DM logic.
> Good news, I can now control two leds connected to one node, with two 
> switches connected to another node, using the VSCP framework!
>
> My demo code for AT90CAN32 is pushed to the git repo (merged to 
> master) and documented in the wiki 
> <http://www.vscp.org/wiki/doku.php/howto/vscp_over_canbus_for_dummies_atmel>
>
> Thank you all for your support, now that I have two VSCP nodes for 
> testing, I need to go ahead with the installation of some nodes in 
> production in my house.
>
> I think I will understand even better when I start to play with vscpworks.
>
> I'll probably come back with some more questions!
>
> Thank you very much!
>
>
> On Tue, Jul 22, 2014 at 8:18 PM, Andreas Merkle <we...@bl... 
> <mailto:we...@bl...>> wrote:
>
>     Maybe a more abstract view helps ...
>     A decision matrix row is nothing else than a single if-clause.
>
>     If you want to trigger action 1 with event A and trigger action 2 with
>     event B, you will
>     configure two decision matrix rows.
>     The first one handles event A and executes the action 1. The
>     second one
>     handles event B and
>     executes the action 2.
>
>     Note, the demo source code is just out of the box limited to 2 dm
>     rows,
>     therefore only two if-clauses are possible.
>
>
>
>     Am 22.07.2014 10:11, schrieb Ake Hedman, Grodans Paradis AB:
>     > Jean-Marc Beaune skrev 2014-07-22 10:05:
>     >> What I understand is, if he decision matrix filter is passed, both
>     >> doActionCtrlLed() and doActionHelloWorld() are executed, it's
>     not one
>     >> or the other.
>     >>
>     >> Do I get it right?
>     > No just one of them. Look at
>     >
>     > if ( !( ( class_filter ^ vscp_imsg.class ) & class_mask ) &&
>     >                       !( ( type_filter ^ vscp_imsg.type ) &
>     type_mask )) {
>     >
>     >                   // OK Trigger this action
>     >                   switch ( readEEPROM( VSCP_EEPROM_END +
>     REG_DM_START + (
>     > 8 * i ) + VSCP_DM_POS_ACTION  ) ) {
>     >
>     >                       case ACTION_CTRL_LED:    // Enable relays
>     > in arg. bitarry
>     >                           doActionCtrlLed( dmflags, readEEPROM(
>     > VSCP_EEPROM_END + REG_DM_START + ( 8 * i ) +
>     VSCP_DM_POS_ACTIONPARAM  ) );
>     >                           break;
>     >
>     >                       case ACTION_HELLO_WORLD:     // Disable relays
>     > in arg. bitarry
>     > doActionHelloWorld(dmflags,  readEEPROM(
>     > VSCP_EEPROM_END + REG_DM_START + ( 8 * i ) +
>     VSCP_DM_POS_ACTIONPARAM  ) );
>     >                           break;
>     >
>     >
>     >                   } // case
>     >               } // Filter/mask
>     >
>     >
>     > First the filter mask is checked and if it is OK you go to the
>     trigger
>     > that executes the action set up in the eeprom (=configured in
>     the dm).
>     > The switch statement compares each "case" and execute the code
>     from the
>     > one that is the same as in the switch statement.
>     >
>     > Cheers
>     > /Ake
>     >
>
>
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>
>
> -- 
> Jean-Marc
>
>
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-- 
Be Hungry - Stay Foolish!
Åke Hedman, Grodans Paradis AB
Brattbergavägen 17, 82050 LOS, SWEDEN
Phone: +46 (0)840011835 CellPhone: +46 (0)730-533146
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