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Posts: 3
Registered: ‎04-06-2017
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EFM32GG STK3700: Schematic error on expansion port

Hi, hopefully this helps someone in the future.

 

after struggling far too long, I found out that there is an error in the schematic pinout of the expansion port for the Starter Kit EFM32GG-STK3700.

 

Pins 15 and 17 on the expansion are labeled incorrectly in the schematic. It says that pin 15 is PD7 and pin 17 is PC6.

https://www.silabs.com/documents/public/schematic-files/EFM32GG_BRD2200A_A03_schematic.pdf (page 2)

 

I was very surprised and frustrated when my continuity meter told me that the PCB was different from the schematic...

 

The board user guide is correct. pin 15 is PC6 and pin 17 is PD7.

http://www.silabs.com/documents/public/user-guides/efm32gg-stk3700-ug.pdf (page 16)

Posts: 1,871
Registered: ‎10-14-2014

Re: EFM32GG STK3700: Schematic error on expansion port

Thanks a lot for bring this out to our attention.

I created an internal ticket to address this and hope we could fix it in the later document new version release.

Thanks again!

WeiguoLu
Posts: 3
Registered: ‎04-06-2017

Re: EFM32GG STK3700: Schematic error on expansion port

Thanks delu for creating a ticket!

The same error also exists in the schematics for Leopard Gecko BRD2201A and Wonder Gecko BRD2400A, theese files:

  • BRD2201A_A02_schematic.pdf
  • BRD2400A_A00_schematic.pdf

The error is that the netlist naming on the EXP port is wrong:

MCU_PD7 -> EXP_HEADER14 -> PC6
MCU_PC6 -> EXP_HEADER12 -> PD7


As it seems to be a copy-paste error, I would recommend you to extend the ticket to check more schematics as well.

 

Posts: 1,871
Registered: ‎10-14-2014

Re: EFM32GG STK3700: Schematic error on expansion port

Thanks,

I will further check Wonder Gecko STK.

WeiguoLu
Posts: 1,871
Registered: ‎10-14-2014

Re: EFM32GG STK3700: Schematic error on expansion port

@LarsH

I confirmed there also there is problem for the wonder gecko STK.

I created an internal ticket for this.

Thanks again for bring this out to our attention.

 

WeiguoLu
Posts: 2,890
Registered: ‎02-07-2002

Re: EFM32GG STK3700: Schematic error on expansion port


LarsH wrote:

The same error also exists in the schematics for Leopard Gecko BRD2201A [...] 


What about the Leopard Gecko?

Posts: 3
Registered: ‎04-06-2017

Re: EFM32GG STK3700: Schematic error on expansion port


vanmierlo wrote:

LarsH wrote:

The same error also exists in the schematics for Leopard Gecko BRD2201A [...] 


What about the Leopard Gecko?


The Expansion Port is labeled wrong in the schematic.

leopard.png


Posts: 2,890
Registered: ‎02-07-2002

Re: EFM32GG STK3700: Schematic error on expansion port

Sorry @LarsH, I was not addressing you. I understood the first time that you considered it to suffer the same problem. But @delu never confirmed it and thus it is probably not in his internal ticket.

Posts: 1,871
Registered: ‎10-14-2014

Re: EFM32GG STK3700: Schematic error on expansion port

@vanmierlo @LarsH

We confirmed these errors. we are working to push the corrected document to Simplicity Studio and our website.

WeiguoLu
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Posts: 534
Registered: ‎10-12-2004

Re: EFM32GG STK3700: Schematic error on expansion port

Hi all,

 

I've queued the updated schematics on the website, so they should show up in less than a day, and I've attached them here.  I've also scheduled them to be updated in Simplicity Studio.

 

~Tabi

Tabitha Parker
MCU Applications and Support Manager
Silicon Laboratories