uJDM Programmer problem

[mostafadn]

ujdm programmer

Hi all,
I made the uJDM Programmer.
**broken link removed**
But as it said I can test my programmer using the Enable Clock option.
It said that if it's being checked then the LED would flash ON/OFF but it doesn't do this.
I've to mention that my PIC is 16F84A.
Also I need a simple project [assembly and schematic] inorder to test my PIC without using the programmer board.

Help me please.

Thanks.

 

[VVV]

programmer for ujdm

To test the PIC, you need to program it, and to porgram it, you need a programmer.... See where I am getting? You need to build a programmer anyway.

You need make sure the programmer works OK first. If it does not do what it is supposed to, then I would check very carefully the construction, there must be an error somewhere.

Also, this programmer does not use a power supply and it relies on the voltages provided by the serial port to put the PIC into programming mode. The PIC needs 13V on the /MCLR line to enter programming mode. Quite often the PIC will refuse to program, because it does not see 13V on its /MCLR pin with respect to Vss.
I would just build another programmer.

 

[mostafadn]

winpic800 detected unknown

So,what?
winpic800 detected it as an UNKNOWN device.
What should I do exactly?

Thanks.

 

[hassenman]

ujdm

ok , in order to test your pic u need to program it first so u can definetly not test it without the programmer board .
so first of all , u need to get ur programmer running corrctly :
-check the wiring of ur circuit , we usually don't want to check the circuit , but its worth doing it before looking out.
-how long is the cable you're using to connect your programmer to the serial port. ur programmer won't work if the cable is long , make shorter.
-if u checked the last 2 points , then check now the voltages as VVV told u .
-check also the software configuration in winpic800 or ic-prog , sometimes people use even the wrong com port , but i don't think this is a problem for u .

if it didn't work , ask again .i can help u.

i attached here a circuit , from the bigonoff book , its very simple .
i attached also the asm source file and an hex of that file .

all was tested by me and it worked for me with a 16f84A.

 

[sphinxvnn]

jdm winpic detected unknown

PIC-PG1 - ICSP SERIAL PORT DONGLE PROGRAMMER
https://www.olimex.com/dev/pic-pg1.html

 

[mostafadn]

ujdm problem

Thanks but there's nothing in prog files.rar.

Thanks alot.

 

[hassenman]

ujdm not working

sorry mostafadn , i upload prog files.rar again .

Added after 2 minutes:

sorry mostafadn , i upload prog files.rar again .
if your programmer didn't work , try using this new jdm programmer : people said it fixed many problems :

 

[mostafadn]

winpic detected -> unknown

THANKS A MILLION.
It finally worked.
I disassembled the kit and assembled it on the fly.
then It worked [simply].
I'll show you it's picture as soon as I take it.
It's very messy.