Paul Chang Posted July 17, 2019 Share Posted July 17, 2019 Dear Sir, I took my NB and tried to read the JTAG-SMT2-NC module via USB, but I always had the error "usb device descriptor failure code" Is there any way to solve this problem? Best Regards Paul Link to comment Share on other sites More sharing options...
JColvin Posted July 18, 2019 Share Posted July 18, 2019 Hi @Paul Chang, There are a couple of issues that this could be. The easiest things to check would be to use a different microUSB cable and/or a different USB port on your computer. Otherwise, the next step would be to check that you have the latest version of the FTDI driver. For a Windows OS, this can be done by going into the Device Manager, opening up the Universal Serial Bus controllers section, right-clicking the USB Serial Converter and going to the driver tab. The latest driver version is 2.12.28.0 for Windows and can be found on the FTDI website here: https://www.ftdichip.com/Drivers/D2XX.htm. If that is updated, uninstalling and then reinstalling the driver would be a good option to try next. Thanks, JColvin Link to comment Share on other sites More sharing options...
Neil22 Posted August 6, 2019 Share Posted August 6, 2019 I have tried the FTDI driver but it still doesn’t work. Neither for uninstall / reinstall driver. I also have some experiment that point out the issue caused by this JTAG-SMT2 module: 1. Get one pcs FT232H Development Module and rework it to our M/B, it works well, no matter read it from external PC or our M/B PCH. 2. Remove EEPROM of on FT232H Development Module, the external PC can recognize FT232 chip without any problem. 3. Tried to measure 3.3V, 2.5V power, 12MHz x’tal and Reset signal, all looks good. 4. Remove the 3.3V power that provide from our M/B to FT232H Development Module, we can reproduce the same symptom on T232H Development Module. Currently all of those check result are indicate there is something wrong on JTAG-SMT2 module. Please help on this. Thanks, Neil Link to comment Share on other sites More sharing options...
JColvin Posted August 6, 2019 Share Posted August 6, 2019 Hi @Neil22, Is this FT232H you are referencing a separate module or is the JTAG SMT2 that you are referring to? If not, what does your OS report the JTAG SMT2 to be in the Device Manager and can the Digilent Adept software see the JTAG SMT2? Thanks, JColvin Link to comment Share on other sites More sharing options...
Neil22 Posted August 7, 2019 Share Posted August 7, 2019 Hi @JColvin The Digilent Adept software can’t see the JTAG SMT2 module. (please see attached "Digilent Adapter show") The OS shows "Usb device description component failed" (please see attached "OS USB shows") Thanks, Neil Link to comment Share on other sites More sharing options...
jpeyron Posted August 8, 2019 Share Posted August 8, 2019 Hi @Neil22, Please provide your circuit for connecting the JTAG-SMT2. best regards, Jon Link to comment Share on other sites More sharing options...
Neil22 Posted August 12, 2019 Share Posted August 12, 2019 Hi @jpeyron I've sent you a PM for the connection. Thanks, Neil Link to comment Share on other sites More sharing options...
jpeyron Posted August 12, 2019 Share Posted August 12, 2019 Hi @Neil22, I have reached out to one of our design engineers to see if they have any additional input about this thread. best regards, Jon Link to comment Share on other sites More sharing options...
jpeyron Posted August 12, 2019 Share Posted August 12, 2019 Hi @Neil22, I have PM'd you with the design engineers response. best regards, Jon Link to comment Share on other sites More sharing options...
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Paul Chang
Dear Sir,
I took my NB and tried to read the JTAG-SMT2-NC module via USB, but I always had the error "usb device descriptor failure code"
Is there any way to solve this problem?
Best Regards
Paul
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