Matrix user forums

looking to try and put ISP via ICD2 to one of my projects so i can use my pic kit2 programmer on it.
Would the attached circuit work ?
Is there anything to be aware of in the set up and using of port b in this way ?

steve

just looked at it now, cannot upload contents (looks like pic is blank) ? think i have just answered my question
micro has had it

steve

Hello benj, My circuit is admittably made on vero boards that plug together through headers, the display and switches are at the front behind is my pic and behind that again is the power supply and a relay output and the analogue inputs. This circuit has been working ok till now. This is a prototype...

thanks for that steve, i wish to check my program, as a prototype that i made has failed during a test. first thoughts where that the lcd display had failed as nonsence was displayed but replacing this made no differance. I think a have a issue with EMF but would like to see what's happened to my pr...

Morning all,

Is there way check the compiled code on the pic to my compiled flowcode program to see if they are the same ?

or is it upload in mplab and check line by line ? or is there a better way ?

Steve

found programmer pcb to be faulty, just waiting for new one then i can go again

steve

Since removing 64 bit internet explorer 8 and going back to normal internet explorer that issue seams to have gone away .

dont know if that was the issue or not but seams to work now .

steve

Hi, FIRSTLEY I HAVE TO AGREE WITH MEDELEC MAINS VOLTAGES CAN AND DO KILL !!!!!!! for speed control of a AC motor you need to alter the frequancy to it.As medelec stated your circuit will have the same effect as shorting out the mains supply. You need also to provide interlocks so that if (or when) a...

Hi David,

that update is sort of workig now, but can you point me to where the asm files are located please ?
as i have to open asmide the long way . the button (on screen1) not working

steve

thanks for that will have a go later
i am using 64 bit win 7

steve

having problems further down now :-( the "Full Listing / Ide Button" marked with a red * dosn't open the ide ? ( Unless its just a pic to show you what it looks like ) I can open IDE by naviagting to it . . See Screen 1 pic but to open to open wher is Tut 3 ? See screen2 pic if i open programs there...

having some problems opening the tutorials . please see attached pic.

if i naviagte to where the .tut files are located i can click on them and open them.
but if i use assembley for pic micro's V4 i get the error ?

steve

Just looked and the Dac1220n is now obsolete . . sorry for that

Sujested replacement .

http://uk.farnell.com/national-semicond ... dp/9486640
http://uk.rs-online.com/web/c/?sra=oss& ... rm=dac0800

steve

Hello Steve, We use 4 - 20 & 0 - 20Ma loops at work, mainly 4 - 20 for the transmitters and we set up the receiver end for 0 - 20 Ma, this been so, that we can generate an error if 4ma is not seen (ie) a broken loop . I made an eblock last year using a XTR110 & a DAC1220N Chips Both from RS and am v...

just had a quick look at my programmer pcb .

powered it up on its own ( No eblocks or chip fitted ) LED2 still flashes the 5 volts is doing what the led does.
going to have a look when i get more time this week. will let you know what i find .

Thanks for your help guys

steve

hi, martin have tried that and unplugging the jumpers and replacing them.and tried to program with my programmer not pluged i and recived usb lead not plugged in message (which i would expect or somthing simmlier) noticed today that when i hit program LED2 flashes ? (not noticed this before) looking...

evening all, can somone have a look at this please as i cannot see whats wrong :-( done a simple flowchart to test as i am having problems, and that not working now. . . getting config word 1 & 2 errors Have use this chip several times and have tried stuff that i know works and still get errors . As...

Hi benj,
thanks for that
i am using a PIC16F884 I/P mostly and have a PIC16F73-I/SP to play with as well
going to have a go later on

steve

can anybody point me in the wright direction please.

looking to try to dabble in some floating point maths. . have looked on here and there is a weath of infomation.
but not having done this before i am looking for a bit of a " Numptys guide " if anybody can help me out . .

steve

thats it works did what i wanted to do,
a lot easier to find things now dont know why i didnt try that before

steve

thanks for that will give it a go later

steve

is there a way to list / sort variables in the variable manager box ? as they dont same to be in any order and it's becomming hard to navaigate.

steve

hello, in answer to johns question, i am using a pic16f884 with 9 analougue inputs these are across ports A and B so i made so that there are 8 pots on each port that can be switched in and out of circuit with jumpers. As another pic may not have the same pins used for the inputs. in answer to marti...

saw this and thought i would add one of the boards i made. it has 16 x 1k pots for analougue inputs which are switchable in and out of circuit. 2 x 1k 10 turn pots (on on each block) for detailed testing and calibrating of the inputs all with test points to test the voltages. However with a quiescen...

or roadrunner link here

http://www.rrunner.co.uk/kits/wiring_kits.htm