Hi James Thanks for you advices Now the chip is not hot but It seem that the result is still the same there is still a lot of false trigger, have you experience this before? i have tried with dip switch and it seems ok but when when link up with another SX such problem occur? ----- Original Message ----- From: "James Newton. Admin 3" To: "PSL" Sent: Thursday, July 18, 2002 6:39 AM Subject: RE: [SX]: Interrupts for SX > I've reviewed the code several times and I honestly don't see any problems > other than the pins that are being set as inputs. IF the pins set for input > are not connected to anything, they could easily be oscillating rapidly when > the interrupt routine sends data via the TX routine. > > Try this: Change each unconnected pin from an input to an output. Check the > wiring of the connected pins for shorts (if they are outputs) or opens (if > they are inputs) with the chip removed. > > Also, the hardware you are using to transmit data from the SX to the PC via > the TX routine could be overloading the SX io pin. > > Try this: Disable interrupts, but change your endless loop so that it > constantly transmits some character. See if the chip heats then. > > Please let me know if that helps. > > By the way, what are you using about debugging. > > --- > James Newton, Host of sxlist.com > 1-619-652-0593 VM 1-208-279-8767 FAX > mailto:jamesnewton@sxlist.com > SX FAQ: http://www.sxlist.com > > > > -----Original Message----- > From: PSL [mailto:psln@starhub.net.sg] > Sent: Tuesday, July 09, 2002 05:37 > To: jamesnewton@piclist.com > Subject: Re: [SX]: Interrupts for SX > Importance: Low > > > Hi James > > Hope you can help me on this i really been struck for a few day on this > > > > I am using the ISR to capture data on a 4 bit bus line(P0-P3) the timing > diagram. i think more of less the program is correct as i do get the correct > results once in the while. > the attach File.txt is the SX with the ISR the data line is connect to this > other SX > > Can you please enlighten me if i have make any mistake in setting up the > Interrupts ? it seem that normally for the first few trigger every thing is > ok but later the chip tend to > get warm and error start to occur. > Hope you can help me on this i'm really have no idea how to solve this > > Thanks > > Regards > > > ----- Original Message ----- > From: "James Newton. Admin 3" > To: > Sent: Tuesday, July 09, 2002 1:07 AM > Subject: Re: [SX]: Interrupts for SX > > > > source= http://www.piclist.com/postbot.asp?id=piclist\2002\07\06\064656a > > > > It would be better if you would comment and post the code you have written > > and let us take a look at it. > > > > > > --- > > James Newton: PICList.com webmaster, former Admin #3 > > mailto:jamesnewton@piclist.com 1-619-652-0593 phone > > http://www.piclist.com/member/JMN-EFP-786 > > PIC/PICList FAQ: http://www.piclist.com > > > > -- > > http://www.piclist.com hint: The PICList is archived three different > > ways. See http://www.piclist.com/#archives for details. > > > > > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu