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HI EVERYBODY

the problem came from the computer - but i have had no idea why the program did not run at all. the chip was burned perfect by the programmer-
the code is perfect (checking by...

hello every body

finally the program runs as posted on the first post- nothing change- and just go back to another computer (complete format the system...) and run win xp- pbp version 5
tks for...

HELLO,
HERE IS THE LINK: https://youtu.be/BQnuAWE8r0c

last night i though when the breadboard becomes isolation (due to plug and unplug the chip may times)
so the zip socket on the programmer...

HELLO,
Tks for ur idea,
it is true that the breadboard is older than 1 year. but the
however, the same breadboard connection and pcb ( i design it and product it) the pic that was programmed a...

HELLO rICHARD,

Thk for ur reply,
the code displayed there is for timer, interrupt, and digital conversion.
that run well for several years.
your code is also not run at all on my breadboard.
...

tks Dave
i do not have 15k-40k resistor,however, i disable mclr in the conf: mclre_off_3h
but nothing happens, i check the resistors tomorrow,

i do not under stand configuration is old hat and
internal osc can delete post?
can you explain clearly,
tks

tks for all

now i know how to send by pdf, here is the attachment
8356
i used pbp v 2.6

i used internal osc 64mhz or 4mhz
no external capacitors on the osc pins,
the same program that is...

TKS
i attach the schematic drawing from isis.
the program is similiar to the 1 above
this is the schematic on the breadboard.
the internal osc is used 64mhz
the leds r connected through 100 or...

Thks,
yes, i did every thing to run but no way
one of the thing is the led on or off when my hand is getting closer to it (the whole surface p10 led dot matrix)

TKS FOR YOUR REPLY,
I did it maytimes but in vain,

the chip was programmed before a month a go run well on both breadboard and pcb
but the chip programmed (the same program) later has not run at...

HELLO,
HOW CAN I VERYFY a progrmmer be good or bad?
after reading the hex file from the chip,
the hex file from the compiler seems identical to that of re-reading from the chip.

in other...

tks all,
after several attempts during a month, i tried to update the programmer firmware just a day ago.

TKS for ur reply,
no way. power supply and every thing is ok
the chip was programmed a month ago is ok (on the bread board and on the circuit), just after last month, every thing is corrupted (...

tks for your rePLY,
it is not the problem of program, nor breadboard? nor programmer?- it is suddenly dead
note that is well simulated in the proteus sofware

hi,
can any friend help this situation
the program had run well for some years, now this fail even if to blink a single led on a breadboard.
i have tried several chips: 16f 676, 876,,877a,...

HI ALL
THANKS for all
the program actually runs well, but the pause time is not correct and the current supply is not adequate ( due to dirty breadboar...)

at high frequency, some of the port...

HI,,
thANKS A LOT RICHARD,

I MOVE TO USE 18F4620, THE PREVIOUS CONF. IS FINE (internal osc*4 = 32 mhz)
the program runs well @40mhz (external osc) then there are problems
i.e. data output...

HI,
thanks for your help.
i suspect st wrong,
i test the whole port b. it runs well (8 leds) - FOSC_INTIO67 (16x4mhz)
However, when attaching portb to the 74hc595 - then 1 of the port pin lost...

HI ALL,

the pic run well @ 4mhz ,HSPLL; 8, 10mhz ... problem (HSPLL).

the conf. remains unchanged

__CONFIG _CONFIG1H, _FOSC_HSPLL_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
...

Y]hello,

yes the above is work.
..
osccon = $70 or (60)
osctune = $40

for single leds
i move to drive 595 then there r problem- lost power or low speed @ out put

HELLO,
thanks for your guide,
YES i try & _DEBUG_OFF_4L

OSCCON = $72 (OR $70)
OSCTUNE = $40
PROBLEM PERSIS (slow)
i will see the inc directory of mpas
is it effected by the hc595?
i found...

THANSKS alot for your help.

yes, i try

OSCCON = $72,
OSCTUNE = $40
the problem still persises.
portb.6 lost power. but it runs faster ...

HI,
I TRY to set up to run the osc internal @64Mhz, but fail.

conf_1H: FOSC_INTIO67 (or FOSC_INTIO7) ;OTHER config's of 1H are off
OSCCON = $70 (16MHZ selected)
OSCTUNE = $40 (enable PLL)
...

thanks Norm,
i see it now, but in the program portC does not service. (PORTB.0,1,2 FOR DATA, LATCH AND CLK)
after several tests, i found that problem comes from peekcode.
direct input data to the...