0

Rs232 (https://www.adafruit.com/products/18) driver issue
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Rs232 (https://www.adafruit.com/products/18) driver issue

by akshaykirti on Mon Sep 29, 2014 12:48 pm

Hello, The drivers for the product would not install. I have tried it on two separate computers running win8 x64. The Vid seems fine but the PID is 0000. Please let me know what to do exactly.

Thanks!

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by franklin97355 on Mon Sep 29, 2014 1:23 pm

Do you have the black USB plug or the purple one? Which drivers are you trying to load and what messages are you getting when you try?

franklin97355
 
Posts: 22138
Joined: Mon Apr 21, 2008 2:33 pm
Location: Lacomb, OR.

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Mon Sep 29, 2014 1:40 pm

I have the purple one. So, I had to modify the inf files to include the pid and tell windows to forget about it's driver signing enforcements. It does seem to work now, but it would be great to get a replacement as this will not run on win8 if boot it up normally.

Unless you want me to modify the EEPROM of the ftdi chip and reflash the pid to reflect whatever the manufacturer intended. I would not prefer to do this as it 'may' render the device useless.

The transmit seems to be working with the vpp at around 14.4V. I have not checked the rx yet.

P.S I like your captcha

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Mon Sep 29, 2014 1:42 pm

Oh. I used the drives from the ftdi website using the link given on your webpage. I checked the vendor and part id as it was not installing the drivers from the folders.

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Mon Sep 29, 2014 2:02 pm

In other news the RX seems to be working fine. Till now atleast. I'm using the MAX3387E as the line driver to pull the uart up to TTL

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Tue Sep 30, 2014 11:57 am

Guys, I would still request you to send me a replacement. I would not prefer running Windows in the Unsigned driver mode. I can ship this back to you as soon as I get the replacement.

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by franklin97355 on Tue Sep 30, 2014 3:05 pm

I'm not sure why you are having so much trouble with the FTDI drivers. I was able to download and install the drivers just fine on a windows 8.1 64bit computer. After downloading I went to the file loaction and Ran as administrator and had no errors at all. You may need to uninstall the existing drivers and try again.

franklin97355
 
Posts: 22138
Joined: Mon Apr 21, 2008 2:33 pm
Location: Lacomb, OR.

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Tue Sep 30, 2014 3:19 pm

There is no problem with the drivers. The hardware device has two identifiers. The Vid and the Pid. The vendor ID for the manufacturer FTDI is 0x0403.. The PID by default is supposed to be 0x6001 and was set as 0x0000.

The OEM of this product normally sets the Vid/PID so that they can have their own drivers etc. However in this case the PID was supposed to be left to the default value but is not.

The vid/pid are set in the EEPROM of the FTDI chip. The software architecture of windows needs 'signed' drivers so that only particular hardware devices from the manufacturer can use that driver with the appropriate pid/vid. The driver WILL NOT enumerate if the pid is something other then what was defined in the inf file..

I modified the windows driver file to include the 0x0000 pid of this device and forced windows to accept the driver in what they call an 'unsigned driver mode'.

Therefore, This was a manufacturing defect of some sort in which the pid was not set right. As i said before, I can program the eeprom to the default pid but would not like to do so as it could(small possibility) kill the device. You can confirm that your pid and vid are accurate by using their FT_prog utility to read the device.

If you would like me to phone you guys up, please email me or PM me a phone number so I can better explain the situation.

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by adafruit on Fri Oct 03, 2014 8:33 am

Our team was not able to reproduce this issue, we download and installed the drivers just fine on a windows 8.1 64bit computer. After downloading we went to the file location and Ran as administrator and had no errors at all. You may need to uninstall the existing drivers and try again.

thanks,
adafruit support

adafruit
 
Posts: 12151
Joined: Thu Apr 06, 2006 4:21 pm
Location: nyc

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Fri Oct 03, 2014 9:03 am

Guys, The product came with the pid 0000. Hence I had to modify the driver files as it would not work with the original drivers.

This was a manafacturing issue in which the product shipped with the wrong pid. Our team had a deadline and therefore I got it to work. As I said again, it would have been great if could have explained this to you over a call. You could have PM'd me your number or something.

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by adafruit on Fri Oct 03, 2014 10:12 am

Thanks, we understand - we've refunded that portion of your order.

adafruit
 
Posts: 12151
Joined: Thu Apr 06, 2006 4:21 pm
Location: nyc

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Fri Oct 03, 2014 10:17 am

Thank you. I could buy another one and ship this back to you if needed. Let me know.

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by akshaykirti on Wed Oct 22, 2014 11:57 pm

Guys,

Check this out : http://hackaday.com/2014/10/22/watch-th ... ake-chips/

I hope this issue is not happening with other parts. Maybe the batch was bad? Please let me know if you need any help ascertaining the situation.

akshaykirti
 
Posts: 9
Joined: Tue Sep 23, 2014 1:57 pm

Re: Rs232 (https://www.adafruit.com/products/18) driver issu

by franklin97355 on Thu Oct 23, 2014 11:50 am

Our products are OK, things we do not make, we can't be 100% sure.

franklin97355
 
Posts: 22138
Joined: Mon Apr 21, 2008 2:33 pm
Location: Lacomb, OR.

Please be positive and constructive with your questions and comments.