[chirp_users] chirp_users Digest, Vol 69, Issue 20

[Mark Lewis GW7KDU]

Hi Bob,

Thanks for that advice. I had started to think that I was going to try that as I'd seen a number of photos of the CP2102 with the RX and TX pins jumpered together and I read this PDF file too.

http://www.mods-ham.com/03_Home-brew/Homebrew-Mods/USB-Programmier-Interface/USB-Programmier-Interface.pdf

I should have the various bits and pieces here by the weekend if the Ebay traders do their stuff and I'll give it a go. 

73

Mark

Mark Lewis GW7KDU


> On 30 Sep 2014, at 01:03, Bob Fk <vk2byf at gmail.com> wrote:
> 
> Yes you need a ground reference connection. Join the Data TX and RX together onto the data pin and it works.
> 
> I made my own cable for the VX-5 and it works.
> 
> Regards Bob VK2BYF
> 
>> On 30 September 2014 05:00, <chirp_users-request at intrepid.danplanet.com> wrote:
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>> Today's Topics:
>> 
>>    1. Re: Homebrew cable for Baofeng UV-5R/Yaesu VX-7R based on
>>       CP2102 UART (YT9TP Pedja)
>> 
>> 
>> ---------- Forwarded message ----------
>> From: YT9TP Pedja <yt9tp at uzice.net>
>> To: Discussion of CHIRP <chirp_users at intrepid.danplanet.com>
>> Cc: 
>> Date: Sun, 28 Sep 2014 21:08:24 +0200
>> Subject: Re: [chirp_users] Homebrew cable for Baofeng UV-5R/Yaesu VX-7R based on CP2102 UART
>>> On 28.9.2014 13:16, Mark Lewis GW7KDU wrote:
>>> I found this pin out for the VX-7R
>>> http://www.kc8unj.com/pinout.jpg
>>> This seems to be similar to the Baofeng UV-3R (as shown on the Miklor
>>> page) but is a Ground connection required?
>> 
>> It seems like VX-7R uses one pin for data and it is bidirectional. If that is the case then you should add some more components to convert bidirectional single pin to standard RX/TX serial connection.
>> 
>> 
>> 
>> 
>> 
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> 
> 
> -- 
> The miracle of life is that it exists despite everything it's got going against it.
> Bob 
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