[hpsdr] [apache-labs] bug in keying circuit/firmware

[Joe Martin K5SO]

All, 

I have not experienced the effect described below but I’ll take a look at the internal timing solution for the Angelia code (which has passed the Quartus timing wizard’s various timing tests  at different simulated temperatures and conditions, etc) nevertheless.  Perhaps I can make the design more robust with regard to timing margins, and if so, I’ll issue a new firmware version for Angelia.  I did such a procedure with the Orion code a few weeks ago (even though there were no complaints of which I was aware with the earlier version).  

Perhaps doing so with the Angelia firmware will make a difference for some radios; we’ll see.  I’ll advise when/if a new firmware version for Angelia is ready for testing.

73,  Joe K5SO

On Jul 24, 2014, at 8:13 AM, Gary Sitton wrote:

> Greg, et al:
> 
>    Does 3.7 include the new CW keyer option for bug emulation?
> I have not been able to use CW on my ANA 100-D since I bought 
> it last year because of the "no bug" feature.  After a call by me
> and others for this albeit dated feature to return, it was eventually 
> and gratefully implemented when the CW keying was moved into 
> the FPGA firmware code where it properly belongs.
> 
>    I heard that earlier firmware release bugs (software kind) turned
> out to be internal soft coded FPGA micro-timing issues, i.e. things
> like FPGA register settling times, etc.  One should remember that
> each individual FPGA has its own distribution of timing requirements 
> and also depend on temperature, supply voltage, etc.  Possibly then 
> only some of the ANAN's with atypical timing behaviors exhibit 
> this "dead-keyer" bug.
> 
> 73,
> Gary K5AMH 
> 
> 
> On 7/24/2014 05:09, 'kc8iir at yahoo.com' kc8iir at yahoo.com [apache-labs] wrote:
>> The 3.7 firmware does not fail.
>> 
>> It is a problem on 3.9.
>> 
>> Greg kc8iir
>> 
>> Sent from Yahoo Mail on Android
>> 
>> 
>> From: Gary Sitton gasitton at comcast.net [apache-labs] <apache-labs at yahoogroups.com>; 
>> To: <apache-labs at yahoogroups.com>; 
>> Subject: Re: [apache-labs] bug in keying circuit/firmware 
>> Sent: Thu, Jul 24, 2014 2:08:52 AM 
>> 
>>  
>> 
>> Greg:
>> 
>>     Tonight on 20 M CW, my 100-D stopped keying after
>> about 5 minutes.  I had to power down and then up
>> my 100-D to get it working again.  Say, this is serious!
>> Is anyone listening? I know CW is a bit passe, but really.
>> 
>> 73,
>> Gary K5AMH
>>  
>> On 7/20/2014 20:13, kc8iir at yahoo.com [apache-labs] wrote:
>>>  
>>> I operated 30 minutes on 3.7 with no fail. something changes from 3.7 to 3.9
>>> 
>>> 
>>> 
>>> Greg
>> 
>> _
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