SounDuke Posted July 17, 2005 Report Share Posted July 17, 2005 Hi, I've got a problem.I have a core with MB64 app, I stuffed it with an LCD in a little case. The fact is that I need 8 digital inputs for navigation buttons and general purpose buttons in this tiny box which is connected to another case stuffed with a DINx4. The boxes are separated, I connected the DINx4 to the sub d port, but I would like to chain a DINx1 to the DINx4. I found schematics for a single DINx1, but I'm having problems connecting the DINx1 to the DINx4 (DINx4 doesn't work) I think the SC lines and RC lines are not properly connected, and I can't figure out from the DINx4 schematic why it doesn't work. Could anybody help? Quote Link to comment Share on other sites More sharing options...
TK. Posted July 17, 2005 Report Share Posted July 17, 2005 Hi,testing shouldn't be so difficult: SC and RC are the same signals for each module. You could disconnect the SI pin of the DINX1 module, and connect the SI pin of the DINX4 instead to the core in order to check if there is a general problem with the DINX4Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
smashtv Posted July 17, 2005 Report Share Posted July 17, 2005 Heya SounDuke!Not that this is the cause of your issue, but it reminded me to post about this:I was building a DINX1 the other day, did not install all jumpers on the pcb (just the one at the first chip) then as I wondered why it did not work, I remembered that the clock line to -all- of the shift registers is carried through the jumper closest to J2. (marked below)Not that this will present an issue for anyone, most are more careful than me with construction (thank goodness!) but it could be a troubleshooting time waster for anyone building an DINX1 with my layouts who forgets that jumper......Best!Smash Quote Link to comment Share on other sites More sharing options...
SounDuke Posted July 19, 2005 Author Report Share Posted July 19, 2005 RD2 of the pic broke down after I left the microprocessor out various times from the socket to program it on the jdm module; the multimeter did not inform me of the fake contacts (maybe something broke inside the pic) and I lost 2 days troubleshooting! With a new fresh pic everything is ok, and next time something is not working I'll have the pic-malfunction phobia :D thanks for the help Quote Link to comment Share on other sites More sharing options...
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