Thread: [Usbpicprog-technical] My proposition for schematic , and Hello

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usbpicprog-technical

[Usbpicprog-technical] My proposition for schematic , and Hello

From: Piotr S. (S. <sq...@wp...> - 2009-05-12 19:20:31

Attachments: test.png

Hello.
I want help you.
I do some changes that add some posible fatures:
- VPP regulated.
- VDD regulated.
- Power check (we can know what V is in programed board and chesk self 
valtages)
- Calibrating internal rc.
I don't route all connections because this can be made for pcb or elements 
optimise.
I want know your opinions.

Piotr Skóslki (SQLek) <sq...@wp...>

Re: [Usbpicprog-technical] My proposition for schematic , and Hello

From: Frans S. <fra...@gm...> - 2009-05-13 08:39:09

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Dear Piotr,<br>
<br>
Your version with switching regulators looks very nice, but the problem
is that it is incompatible with the old hardware so I will need to
write 2 versions of the software. I have also designed a new version of
the hardware (0.3) please check out the svn. It doesn't have the
switching regulators, but it does support lower voltages.<br>
What do you mean with "calibrating internal RC"?<br>
<br>
Cheers,<br>
<br>
Frans<br>
<br>
<br>
<br>
<br>
<br>
Piotr Sk&oacute;lski (SQLek) <a class="moz-txt-link-rfc2396E" href="mailto:sq...@wp...">&lt;sq...@wp...&gt;</a> wrote:
<blockquote cite="mid:200...@wp..." type="cite">
  <pre wrap="">Hello.
I want help you.
I do some changes that add some posible fatures:
- VPP regulated.
- VDD regulated.
- Power check (we can know what V is in programed board and chesk self 
valtages)
- Calibrating internal rc.
I don't route all connections because this can be made for pcb or elements 
optimise.
I want know your opinions.

Piotr Sk&oacute;slki (SQLek) <a class="moz-txt-link-rfc2396E" href="mailto:sq...@wp...">&lt;sq...@wp...&gt;</a>
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Re: [Usbpicprog-technical] My proposition for schematic , and Hello

From: Piotr S. (S. <sq...@wp...> - 2009-05-13 18:17:24

On Wednesday 13 of May 2009 10:38:51 Frans Schreuder wrote:
>  Dear Piotr,
>
>  Your version with switching regulators looks very nice, but the problem is
> that it is incompatible with the old hardware so I will need to write 2
> versions of the software.

If this is a problem we always can do branch , or fork.
I can do this for mostly backward compatybilyty but PWM must be free.

> I have also designed a new version of the
> hardware (0.3) please check out the svn. It doesn't have the switching
> regulators, but it does support lower voltages. 

I check this too and try do compatybile connections.

> What do you mean with
> "calibrating internal RC"?

We have osc-out with 1/4 interenal RC and we can calibrate internal oscilator 
of procesor.

>
>  Cheers,
>
>  Frans

Very THX for opinions . I become more work :D

PS Sorry for my ugly english.