Hi Richard,
PICprog connection for PIC16F526 needs 5 pins: Vdd, Vss, MCLR, ICSPCLK,
ICSPDAT. You can also do programming out of Your device (ZIF socket - if
You have one - connected to PICkit), so You don't necessarily need ISCP
pins in Your design. But is is quite convenient to instantly download
code when debugging without need to again and again move IC out and in...
Regarding SDCC for PIC I can't provide any help. I use SDCC for another
processors... For PIC I use (in my job) MPlabX.
BR,
Hynek
Dne 1.2.2017 13:48, Richard Gray napsal(a):
Hi Guys,
I need a bit of guidance, and I'm certain you guys will have some
experience to point me in the right direction.
I have a little problem at home which I am confident that I can solve
with a PIC16 chip. I /could/ solve the problem using discrete logic,
but the component count would be problematic because I have to work in
a physically quite small space. The chip I have in mind is a PIC16F526
in it's DIL 14-pin configuration.
I seem to think that the PICKIT 3 is the thing I need, but on my
actual circuit board I think I need a row of header pins (6 or maybe
8) connected somehow to permit in-circuit serial programming? On my
last PIC project, now many years ago, I had a PICstart programmer with
a ZIF socket that was driven from an RS232 port on a PC, and
in-circuit programming wasn't an issue; but it looks like that is now
obsolete. I have found similar programmers (such as one from Dataman);
but they're frighteningly expensive.
I will probably use SDCC for my project, and although fairly simple
I'd rather not write the code in assembler!
Can anybody offer me a bit of guidance as to the bits and pieces of
hardware that I need to buy?
Many thanks!
Richard.
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