[chirp_users] FT-60 and CP2102

Tom Morris blueneon at gmail.com
Mon Nov 2 08:04:39 PST 2015


See this for an externally powered version which may come in handy should
the host serial interface decide to be a REAL pill about how much current
it's gonna source. :P
http://mw0gkx.co.uk/radprog/icomhw/opc478.htm

On Mon, Nov 2, 2015 at 10:57 AM, Tom Morris <blueneon at gmail.com> wrote:

> The MAX232 method is likely gonna be picky as heck unless there's a
> constant power source available. You can use the DTR line on the serial
> port but on some systems this isn't driven with enough current.
>
> That being said, this is what I've used.
>
>
> I just tossed a 2N2222 and 2N3904 in there as the PNP and NPN transistors.
> Never fails.
>
>
> http://www.kc8unj.com/opc478.gif
>
> On Mon, Nov 2, 2015 at 8:53 AM, Steve Whitehead <nv7vham at gmail.com> wrote:
>
>> Turns out it looks like most of the CP2102 USB adapters are 3.3V output.
>> Specifications for
>> TTL logic is 5V.  I have ordered a CP2102 that has both so we'll try that
>> and see what
>> happens.
>>
>> In the dim times (when we used a kerosene lamp to illuminate our computer
>> screens) a common
>> practice was to use a Max232 to convert RS232 levels to TTL for
>> programming radios when you did
>> not want to purchase a $40 cable from RT systems.  It was often hit and
>> miss if the radio would work
>> because the levels were sometimes not quite right.....
>>
>> Should have the different CP2102 this week and report back.
>>
>> >Thanks for the response Jim.  I wish it as easy as finding a short.
>> > I have three of the converted 6-in-1 cables and the behavior is the
>> same.
>> >I will keep playing with it.  I did not order the cheapest available
>> CP2102
>> >available from China and notice there are several different styles.
>> >Perhaps this one is somehow different in levels or buffering from the
>> >others.  I have read online others have had success programming the
>> >FT-60 with the CP2102 so something is different.  One thing of note is
>> >this is one of the CP2102s that John said has the TXD and RXD switched.
>>
>> >On Fri, Oct 30, 2015 at 8:25 AM, Steve Whitehead <nv7vham at gmail.com>
>> wrote:
>> >
>> > I have been using one of the 6-in-1 programming cables with the
>> counterfeit
>> > Prolific chip in it.  After reading John Miklor's article about using
>> the
>> > CP2102
>> > in place of the Prolific counterfeit I replace the chip with the CP2102
>> .
>> >
>> > The cable works perfectly with the UV-5R radios but no longer works with
>> the
>> > Yaesu FT-60.  It is the same with my MacBook Pro or if I use FT-60
>> > commander.
>> > I thought before I start spending several hours chasing this down I
>> would
>> > ask
>> > if anyone else has run into this.
>> >
>> > Thanks,
>>
>>
>> --
>> Please note new e-mail address
>>
>> nv7vham at gmail.com
>>
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>
>
>
> --
> --
> Tom Morris, KG4CYX
> Exhibit Technician and Plastic Orange Tree Arborist, Miami Children's
> Museum
> 786-228-7087
> 151.820 Megacycles
>



-- 
--
Tom Morris, KG4CYX
Exhibit Technician and Plastic Orange Tree Arborist, Miami Children's Museum
786-228-7087
151.820 Megacycles
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