[chirp_users] ft897

Larry Howell larry.howell.47 at gmail.com
Mon Jul 23 14:54:38 PDT 2018


I think the device manager only looks at the USB "manufacture ID" value of
the chip in the product, while the driver looks for a particular serial
number sequence or something similar.  The chip manufacturers, like FTDI
and Prolific, are just trying to protect their IP (intellectual property)
so the cloners don't rip them off.  I was an embedded systems and software
engineer for 40 years, retiring last year.  There is a software tool that
FTDI used to have on their website that could be used to check if the
product was using a genuine FTDI or clone chip.  I've had the Linux version
of the tool for many years, so haven't had a reason to see if it's still
available.

Larry AC8YE

On Mon, Jul 23, 2018 at 5:19 PM, randy true <w4rttrandy at outlook.com> wrote:

> If device manager says it is an FTDI chip, is it genuineb but maybe older?
>
> Is this what a genuine chips shows as?
>
> I assume something like an RT cable is the best?
>
>
> Randy W4RTT
>
>
> ------------------------------
> *From:* chirp_users-bounces at intrepid.danplanet.com <
> chirp_users-bounces at intrepid.danplanet.com> on behalf of Larry Howell <
> larry.howell.47 at gmail.com>
> *Sent:* Monday, July 23, 2018 9:57 AM
>
> *To:* Discussion of CHIRP
> *Subject:* Re: [chirp_users] ft897
>
> Randy,
>
> A similar situation also exists with cable using FTDI USB-to-serial
> chips.  This is another case of a cable manufacturer using a clone
> (counterfeit) chip instead of a genuine FTDI chip, and FTDI drivers for
> several years have not worked with the clone chips.  I don't know if an
> older FTDI driver can be found that will use the clone chip, but other
> Chirp users may be able to guide you.  As soon as I receive a new cable I
> check it to be sure it used a genuine FTDI chip.  If it's a clone chip, I
> return the cable to the vendor.
>
> Larry AC8YE
>
> On Sun, Jul 22, 2018 at 11:33 PM, randy true <w4rttrandy at outlook.com>
> wrote:
>
> Device manager says FTDI.
>
>
> Randy W4RTT
>
>
> ------------------------------
> *From:* chirp_users-bounces at intrepid.danplanet.com <
> chirp_users-bounces at intrepid.danplanet.com> on behalf of Larry Howell <
> larry.howell.47 at gmail.com>
> *Sent:* Sunday, July 22, 2018 11:03 PM
> *To:* Discussion of CHIRP
> *Subject:* Re: [chirp_users] ft897
>
> When and why Microsoft chooses to do things is a great mystery.  If Device
> Manager shows your cable to be a Prolific cable, try rolling your driver
> back to 3.2.0.0. Info found at www.miklor.com.
> Miklor Radio Information Site - Miklor <http://www.miklor.com/>
> www.miklor.com
> outdoors hunting camping SHTF GMRS radio communications antenna battery
> electronics scanners digital computer software hardware laptop iPad iPhone
> eBay music radio
>
>
> Larry AC8YE
>
> On Sun, Jul 22, 2018 at 10:22 PM, randy true <w4rttrandy at outlook.com>
> wrote:
>
> The OS is Win 7 with updates enabled, but I have been using Chirp for over
> a year with no hassles. What should the correct driver be?
>
>
> Randy W4RTT
>
>
> ------------------------------
> *From:* chirp_users-bounces at intrepid.danplanet.com <
> chirp_users-bounces at intrepid.danplanet.com> on behalf of Larry Howell <
> larry.howell.47 at gmail.com>
> *Sent:* Sunday, July 22, 2018 7:01 PM
> *To:* Discussion of CHIRP
> *Subject:* Re: [chirp_users] ft897
>
> Hi Randy,
>
> You didn't say which OS your computer runs, so I''l assume it's Windows.
> If you have it set to install updates automatically, or the OS is Windows
> 10, then Microsoft has probably replaced the driver with a different one
> that doesn't like the cable.  This typically occurs with cables that use
> the Prolific USB-serial chips.  Many cheap cable use clone chips that newer
> drivers detect and will ignore because they aren't Prolific chips.
>
> Larry AC8YE
>
> On Sun, Jul 22, 2018 at 6:27 PM, randy true <w4rttrandy at outlook.com>
> wrote:
>
> Chirp has suddenly stopped communicating with my 897.
>
> I have checked all com port settings in the program/computer/and radio All
> are OK.
>
> The 897 will still work with other programs on the same com port.
>
> Rebooted, no jot.
>
> Should I try and reset the radio?
>
>
> Randy W4RTT
>
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