[hpsdr] Mercury Problem

[Stephen West-Fisher]

I've already done the visual inspection and things look good to me. That
doesn't mean they look good to the electrons :-)

--
Stephen West-Fisher
N4IK


-----Original Message-----
From: Joe Martin K5SO [mailto:k5so at valornet.com] 
Sent: Sunday, January 27, 2013 7:32 PM
To: Stephen West-Fisher
Cc: hpsdr at lists.openhpsdr.org
Subject: Re: [hpsdr] Mercury Problem

Hi Stephen, 

As with any hardware troubleshooting effort the first step in sorting out a
trouble on a freshly built board is to verify by measurement with a
voltmeter that all of the supply voltages on the board are present and
correct.  If they are, then a very careful examination of the pins on the
chips (especially the FPGA) using a magnifying glass is in order; it's SO
easy to create shorted pins when soldering the components on the board,
especially on the FPGA. 

If you have already completed these steps then you can begin a detailed
troubleshooting of the board functionality.  

73,  Joe K5SO

On Jan 27, 2013, at 5:19 PM, Joe Martin K5SO wrote:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi Stephen,
> 
> As you probably know, the diagnostic LEDs on Mercury are arranged as
follows; these will have the following "normal" powered-up indication before
any PC program is run; that is, after a fresh power up of the Mercury board
before any PC program is run: 
> 
> D3 = DONE_LED = ON
> D4 = DEBUG_LED7 = OFF
> D5 = DEBUG_LED6 = OFF
> D6 = DEBUG_LED5 = ON
> D7 = DEBUG_LED4 = ON
> D8 = DEBUG _LED3 = FLASHING
> D9 = DEBUG_LED2 = FLASHING
> D10 = DEBUG_LED1 = OFF
> D11 = DEBUG_LED0 = OFF
> 
> If your clock is bad (or, for example, if jumper JP9 is missing or there
is no jumper on CLKSEL) then only D3 = DONE_LED will be ON; all the others I
mentioned will be OFF. 
> 
> 73,  Joe K5SO
> 
> On Jan 27, 2013, at 3:53 PM, Stephen West-Fisher wrote:
> 
>> ***** High Performance Software Defined Radio Discussion List *****
>> 
>> Now that I have the ADC oriented correctly, it's time to move on.
>> According to the LEDs, the code is loaded but not running - would 
>> that point me in the direction of a bad clock?
>> 
>> --
>> Stephen West-Fisher
>> N4IK
>> -----Original Message-----
>> From: hpsdr-bounces at lists.openhpsdr.org 
>> [mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Stephen 
>> West-Fisher
>> Sent: Saturday, January 26, 2013 4:23 PM
>> To: hpsdr at lists.openhpsdr.org
>> Subject: Re: [hpsdr] Mercury Problem
>> 
>> ***** High Performance Software Defined Radio Discussion List *****
>> 
>> I have found that the ADC is 90 degrees off, mine has marks on two 
>> corners but under a magnifying glass it's obvious I picked the wrong 
>> one. I didn't even see the other.
>> 
>> --
>> Stephen West-Fisher
>> N4IK
>> -----Original Message-----
>> From: hpsdr-bounces at lists.openhpsdr.org 
>> [mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Stephen 
>> West-Fisher
>> Sent: Saturday, January 26, 2013 3:11 PM
>> To: hpsdr at lists.openhpsdr.org
>> Subject: [hpsdr] Mercury Problem
>> 
>> ***** High Performance Software Defined Radio Discussion List *****
>> 
>> I've just finished building Mercury, and while I didn't expect it to 
>> work right off I don't know where to start the troubleshooting.
>> 
>> I loaded V3.2 firmware with no errors.
>> I uninstalled my old PowerSDR and installed 2Rx v2.2.9 even though I 
>> have only the one Mercury.
>> When I hit the power button with Mercury selected in setup PowerSDR 
>> locks up. If I de-select Mercury it runs fine.
>> 
>> I recall some discussion recently about software/firmware version 
>> issues but I cannot find it searching the list or on the openhpsdr 
>> site. Could someone point me to some current documentation about it?
>> 
>> While I didn't really expect the board to work first time, I did not 
>> expect it to lock up PoswerSDR, just to not work. Could this be from 
>> a hardware issue? If so, where should I start looking for errors on the
board?
>> 
>> Thanks,
>> 
>> --
>> Stephen West-Fisher
>> N4IK
>> 
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