[nos-bbs] KISS help... more

[Michel Beaudry VE2BCW]

Hi Jerome,

4.6 is too low
I had 4.72v and the pi was not stable.
I replaced the power supply and now have 4.9v between tp1 and tp2
Much more stable now.

good luck

Michel
ve2bcw



On 19/01/13 02:40 AM, jerome schatten wrote:
> Michel... if you have a way of accurately measuring the voltage between,
> tp1 and tp2, I'd like to know what you get. I've just tried a good
> external supply, and I see ~0.4 v drop from the supply to the test
> points at ~400+ ma. Most of that drop is probably across the micro USB
> connector and the fuse. So at the test points I've got ~4.6v. That
> doesn't seem unreasonable to me with a 5v source.
>
> Best,
> jerome
>
> On Fri, 2013-01-18 at 14:30 -0500, Michel Beaudry VE2BCW wrote:
>> Hi Jerome,
>>
>> I have been running jnos2.0j on my Raspberry at ve2bcw.ampr.org for
>> about a week.
>> It works fine and it's not dropping any packets.
>> I compiled jnos on the pi and only changed the attach line in my
>> autoexec.nos
>> I am using a USB to serial converter and a older Kantronics all mode TNC.
>>
>> 73,
>> Michel
>> ve2bcw
>>
>> sysop de ve2uqh.ampr.org
>>
>>
>>
>>
>> On 17/01/13 12:55 AM, jerome schatten wrote:
>>> Hi... Running jnos2.0j on a Raspberry Pi. Everything works except my
>>> radio drop RX data is somewhat garbled on RX. Garbled = dropped or wrong
>>> characters and Bad Header messages....
>>>
>>> Using a Prolific 2303 usb -serial converter. It works fine in native tnc
>>> mode (KAM-XL) with minicom... no decode errors at all. But in kiss mode
>>> the RX data is full of errors. From what I can tell, TX seems OK, as I
>>> can connect to other stations instantly and disconnect instantly and
>>> commands seem to be understood.
>>>
>>> I've used the same hardware (but with jnos2i) on another computer and
>>> both RX/TX work flawlessly in kiss mode. The model USB converter is
>>> known to work with the RPi. I've also tried another converter, a Belkin
>>> with exactly the same results.
>>>
>>> There seems to be precious few parameters that one can play with in Kiss
>>> mode. At the Jnos prompt, 'param vhf2' returns RTS 0; speed 9600.
>>>
>>> My sense of this is that the converter is working OK, else it wouldn't
>>> work in native mode. As well the TNC and the same converter work fine on
>>> another computer, so it appears the hardware is OK.
>>>
>>> I've kind of ruled out the converter dropping the supply voltage on the
>>> Pi down to unreasonable levels, as the Pi/tnc/converter combo work in
>>> native mode without missing a beat.
>>>
>>> I am at a loss as what else to try. I can, with a good deal of trouble,
>>> swap out the KAM for an old 1270, or compile a different version of jnos
>>> 2i instead of 2j,  but I thought I would check with the group before
>>> that going off in these directions. What am I missing here?
>>>
>>> Thanks for any suggestions...
>>> jerome - ve7ass
>>>
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>>>
>>
>>
>>
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