blink a single led

[richard]

HOW CAN I VERYFY a progrmmer be good or bad?

erase "blank" the chip , verify chip is blank
reprogram chip , verify program against hex file

[MINHLE]

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 all on both breadboard and pcb
now program is reduce to a signle led to be easy to control but not run at all.
this happened some years ago but now i forgot how to fix it (nothing to fix as i remember) but now i have to find out the root of a problem

[towlerg]

have you tried reverting to the previous version of programmer firmware?

[MINHLE]

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)

[Dave]

Minhle, A rough schematic would be helpful....

[MINHLE]

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 1k ohm resistors
when simulating on isis: osc is changed to 4mhz



PORTTEST_18F26K20.doc

[richard]

I would not expect anyone who values their computer's integrity to open a "doc" file from an untrusted source.

make it a jpg,gig,png or some other safer format



ps what version of pbp are you using . that config section is way way old hat