Forums - SP140/141 No LED, shell

8 posts / 0 new
or Register
Last post
SP140/141 No LED, shell
peterburk
Join Date: 15 Sep 14
Posts: 4
Posted: Thu, 2014-10-09 03:18
Top

Hi there,

I'm trying to connect to my SP140/141 development board (with the red Alljoyn sub-board), using USB to the J9 connector on the bottom. 

For my other board, an SP140/144 (green sub-board), I simply needed to install the FTDI drivers, choose the Serial radio button in PuTTY, and I could get an interactive shell. There was an orange status LED that turned on immediately when I plugged it in. 

The SP140/141 creates two COM ports, but connecting using PuTTY generates no response at all. Unlike the SP140/144, there are no jumpers installed by default. Putting my own jumpers into the places shown in the Quick Start Guide didn't help though. 

We ordered a replacement, but that has the same problem. 

  • • Is there supposed to be a power indication LED on the SP140/141 board?
  •  
  • • What are the required jumper settings, DIP switch swittings, and drivers for communicating to the SP140/141? I'd like to get shell access, as I have succeeded in doing with the SP140/144. 
  •  

Thank you for your assistance!

Best regards,

Peter

  • Up0
  • Down0
Re: SP140/141 No LED, shell
OranGu
Profile picture
Join Date: 10 Oct 14
Location: San Jose
Posts: 33
Posted: Fri, 2014-10-10 10:42
Top

Please folow the DIP switch setting as described in Document 80-Y6806-4 Rev A in Section 1.1

Oran 

  • Up0
  • Down0
Re: SP140/141 No LED, shell
peterburk
Join Date: 15 Sep 14
Posts: 4
Posted: Sun, 2014-10-12 23:19
Top

Done that. And I even tried installing my own personal jumpers according to document 80-Y6806-2 Rev. B, Figure 1. 

The LED on the board does not light up. PuTTY opens a new window with a blinking green cursor, but cannot get a shell prompt. 

What else do you suggest trying?

Peter

  • Up0
  • Down0
Re: SP140/141 No LED, shell
OranGu
Profile picture
Join Date: 10 Oct 14
Location: San Jose
Posts: 33
Posted: Mon, 2014-10-13 11:03
Top

Hi Peter,

it seams you probably have a wrong FW image (on the QCA4002 SPI flash)  or driver on the MCU . Can you try re-programming using flash agent tool ? 

BR,

Oran

  • Up0
  • Down0
Re: SP140/141 No LED, shell
peterburk
Join Date: 15 Sep 14
Posts: 4
Posted: Mon, 2014-10-13 18:45
Top

Unfortunately I don't have a J-Link programming cable. Can you suggest another way to reflash the firmware?

Peter

  • Up0
  • Down0
Re: SP140/141 No LED, shell
OranGu
Profile picture
Join Date: 10 Oct 14
Location: San Jose
Posts: 33
Posted: Wed, 2014-10-15 16:41
Top

There is another way to refresh the FW but you need to have an NDA with Qualcomm. 

Terms: 

---------

FW = programm running on the internal microprocessor of the QCA4002 stored on the external flash connected to the QCA4002 through SPI interface

Driver = programm running on the Freescale K22 microprocessor stored in the internal flash of the K22

 

 

  • Up0
  • Down0
Re: SP140/141 No LED, shell
peterburk
Join Date: 15 Sep 14
Posts: 4
Posted: Wed, 2014-10-15 23:13
Top

I've asked my boss for permission, and he's told me that I can sign an NDA with Qualcomm as needed. 

Please let me know how to proceed!

Peter

  • Up0
  • Down0
Re: SP140/141 No LED, shell
gerhard0
Join Date: 29 Apr 14
Posts: 3
Posted: Fri, 2014-10-17 01:34
Top

Contact us, we can get you under Qualcomm NDA:

http://www.lian-mueller.com/qca/internet-of-things/

  • Up0
  • Down0
or Register

Opinions expressed in the content posted here are the personal opinions of the original authors, and do not necessarily reflect those of Qualcomm Incorporated or its subsidiaries (“Qualcomm”). The content is provided for informational purposes only and is not meant to be an endorsement or representation by Qualcomm or any other party. This site may also provide links or references to non-Qualcomm sites and resources. Qualcomm makes no representations, warranties, or other commitments whatsoever about any non-Qualcomm sites or third-party resources that may be referenced, accessible from, or linked to this site.