Dario Greggio <adpm.to@inwind.it> writes:

> Csanyi Pal ha scritto:
>>> Tomarrow I start to programme with this programmer a PIC
>18F4550. I shall put this PIC on to solderless prototyping board of
>the PIC Programmer For Parallel Port and connecting Vdd, Vss, Vpp,
>PGD and PGC wires to it's approppriate pins.
>>
>> Just one question more about this Programmer For LPT Port.
>> Another mistake is that that in place of 18F4550 I must program
>> 18F2550. Can I use this programmer to program the 18F2550 too with
>> a firmware?
>
> yes, you can- they only differ in output ports.

Now I'm trying to program the PIC 18F2550 with Pikdev.

When I hit F6 the 'Builtin PiKdev programmer - PiKdev' window pop up.

Current settings is 'p18f2550' with the approppriate firmware .hex
file.

I can detect the PIC 18F2550 here.

The field of
'Program memory (16 bits words)'
shows the values 'FFFF':
from address 00000000 to 00007FF0

and the field of
'Data memory (packed 8 bits words)'
shows the values 'FFFF':
from address 00F00000 to 00F00050

When I hit 'Ctrl+P' to program the PIC the status line shows OK at the
and.

When I Verify or Read the PIC it's OK again.

But the fields don't changes values so I have a feeling that the PIC
18F2550 isn't programmed at all.

Am I make a mistake here and if, what?

Any advices will be appreciated!

--
Regards, Paul Chany
http://csanyi-pal.info

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