18F4XX and 16F877A programming with ICPROG&PROPIC2

[nebisman]

16f877a programming

I'm trying to program the 18FXXX and 16F877A MCU, with propic2 hardware and ICPROG ver 1.05A. Sometimes (but only few times) it programs them.

For other microcontrollers the software works fine, but with them don't work.

Is there any trick for do it?
Do anybody test this software with these PICS?
is it really supported with PROPIC2?

please help me.

nebisman

 

[neuralc]

icprog not programming 16f877a

Hi,

I never tried 16F877A and 18FXXX, but I'm actualy using 16F870 and 16F873A (PROPIC2 + ICPROG 1.05A) and it works well always.

If you whant I can check the configuration...

NeuralC

 

[nebisman]

FIXED PROBLEM

Software ICPROG for propic2 hardware presents error for programming these series of microcontrollers.

The solution is to use the JDM programmer, with this the programming there is no problem.

Thanks friends for your help.

nebisman

 

[Fragrance]

Try out These hardware may be help

Hi friends

I think some thing ronge with setting please see the attach file and try out these hardware

regards
Fragrance

 

[Kripton2035]

some times ago, someone said you must choose oscillator HS (high speed) for the programmation to work on these chips. if you choose XT, it fails...
give it a try !

 

[sick_man]

i would advice choosing also a different oscillator

the other thing is you may need to shorted the lead or add some screening
perhaps as it is intermittent
you havent been carefull enough to set the voltages

try to set up the unit again
making sure that a good ground between the pc case

try three things

1} enable spp standard port in bios
2} use a short cable lengh
3} use a 17V ac supply {at least } 18 is best
4} choose a 2200 uf cap as the main resoviour and 220 as the cap that smooths the vcc supply from the 8v regulator
5} mount the programer on a bit of single sided pcb not etched
then ground this to the gnd rail on the programmer
to add screening so mount it less than 20 mm from the bottom with the pcb foil under so it cant ever short
add some stand offs so you can push it in safe {adds stability}
6} dont twist up cables and keep it away from monitors and other emf
7} plug the transformer for the unit into a socket bar with a filter on it
perhaps your mains is dirty

the fact that it programs sometimes and not others is a sign of electrical problems

find by writing down what settings works "sometimes" and in adding these tweaks youll get a nice working unit

i am sure

happy hunting 8)