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flat4power's Guepard - a VW type 1 oriented board 
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LQFP112 - Up with the play
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Joined: Mon Sep 24, 2012 8:19 am
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Location: France
ok so remove ;)

git is now up to date :)


Wed Jun 19, 2013 11:23 am
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LQFP144 - On Top Of The Game
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flat4power:
What version of KiCAD are you using?

Thank you,

Andy.

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Andy.
FreeEMS vehicle #11, 1932 Ford 5 Window Coupe with a 1996 GM 3.1L SFI V6 with DIS ignition
FreeEMS vehicle #16, 1996 Chevrolet S10 2.2L SFI I4 with DIS ignition
http://www.coolefi.com


Wed Jun 19, 2013 1:01 pm
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LQFP112 - Up with the play
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I'm using Kicad(2013-05-16 BZR 4016)

I have change my schematics for MPX4250, because I have used the wrong footprint like you say
github is now update

Image

Matthieu


Wed Jun 19, 2013 1:08 pm
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LQFP112 - Up with the play
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I realize this board this week to proceed some test.
Can you say me if I need realize some modification or can I test like that ?

Matthieu


Mon Jun 24, 2013 8:49 am
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Free English lessons ;-)

flat4power wrote:
I realize this board this week to proceed some test. < understood
flat4power wrote:
I will make this board this week to proceed with some tests. < better
flat4power wrote:
I will make this board this week to do some tests. < good
flat4power wrote:
I will make this board this week to do some testing. < best

Are you going to etch it at home yourself?


flat4power wrote:
Can you say me if I need realize some modification or can I test like that ? < understood
flat4power wrote:
Can you tell me if I need to do some modifications or if can I test like that ? < better
flat4power wrote:
Can you tell me if I need to make some changes or if can I test like that ? < good
flat4power wrote:
Can you tell me if I need to make some changes or if can I test it as it is ? < best

I don't have time to check it over, but if you hold off until Dan and/or Andy have had a poke around, that would be a good idea.

Fred.

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Mon Jun 24, 2013 12:25 pm
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LQFP112 - Up with the play
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Joined: Mon Sep 24, 2012 8:19 am
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thanks for the lesson ;)
I will try to do better next time :)
Quote:
Are you going to etch it at home yourself?

I entrust the implementation of the pcb because I do not have the resources to do
Quote:
I don't have time to check it over, but if you hold off until Dan and/or Andy have had a poke around, that would be a good idea.

Ok, I'll wait a little to have a feedback from Dan and/or Andy :)


Mon Jun 24, 2013 12:39 pm
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In that case, the correct form would be:

I will have this board made this week to do some testing.

or

I will get this board made this week to do some testing.

or

I will have this board manufactured this week to do some testing.

:-)

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Mon Jun 24, 2013 2:16 pm
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LQFP144 - On Top Of The Game
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Joined: Thu Feb 25, 2010 3:57 am
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Location: Gosport, IN USA
Matthieu,

After reviewing your PCB layout in KiCAD, I have found the following areas you will want to correct before having boards manufactured:

1. Take a look at where you feed power into your decoupling capacitors for the MCU, you need to feed the power into the polarized tantalum capacitors then route to the ceramic capacitors before finally routing to the MCU pins. Specifically power into C47, then to C2, then to the MCU pin. Same scenario for C48 and C3.
2. C4 and C44 shouldn't be in parallel, C4 should go to one pin of the MCU, the C44 to the MCU pin next to the one C4 is connected to. Here again make sure to feed power to the capacitor before routing into the MCU pin.
3. The RPM-Crank-IN+ and RPM-Crank-IN- traces in the corner under U11 are close together, try to keep them the same distance apart in the 45degree angle traces as you did before and after the 45degree angle.
4. The ground plane under the Freescale MCU should look like the suggested PCB design in the Freescale 9S12XDP512 datasheet. If you open up my Jaguar 0.4-alpha board layout in KiCAD you will see the correct shape it is to look like.

Once you get those corrected I can take another look to make sure there are no other issues.

Thank you,

Andy

_________________
Andy.
FreeEMS vehicle #11, 1932 Ford 5 Window Coupe with a 1996 GM 3.1L SFI V6 with DIS ignition
FreeEMS vehicle #16, 1996 Chevrolet S10 2.2L SFI I4 with DIS ignition
http://www.coolefi.com


Wed Jun 26, 2013 8:37 pm
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LQFP112 - Up with the play
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Joined: Mon Sep 24, 2012 8:19 am
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thanks for your feedback
I worked on changes

Github is updated

Thanks
Matthieu


Thu Jun 27, 2013 10:31 am
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LQFP112 - Up with the play
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In my schematics I have this for bluetooth communication (3.3V module)
Image
But is it possible using ADUMX201 (like on USB communication) as an level converter between MCU 5V and bluetooth 3.3V.
Image

thanks for your help


Mon Jul 01, 2013 1:23 pm
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