topic Re: CodeRed IDE Linux version disconnects FTDI USB-Serial in LPCXpresso IDE

CodeRed IDE Linux version disconnects FTDI USB-Serial

lpcware — Thu, 16 Jun 2016 02:11:06 GMT

Content originally posted in LPCWare by suikan on Wed Mar 16 02:41:38 MST 2011
Hi

I have trouble of USB-Serial Interface when I start the debug with LPCXpresso.

[LIST]
[*]OS : Ubuntu Linux 10.04
[*]Platform : AMD Athlon Neo MV-40 / VMware Workstation 7.0
[*]IDE : CodeRed 3.8.2 [Build 129]
[*]Target : LPCXpresso 1769
[/LIST]
Whenever I launch the debug session with LPC-Link, the USB-Serial interface is disconnected. For example, the /dev/ttyUSB0 is disappeared from system.

I checked my stock of USB-Serial interface. Following is the result when I launch the debug session with LPC-Link.

[LIST]
[*]FT232R : Disconnected
[*]FT2232 : Disconnected
[*]CP2102 : Connection kept
[*]PL2303 : Connection kept
[/LIST]
So, I think CodeRed IDE's debug session disconnect only FTDI chip dependent module.

I appreciate if somebody knows workaround.

Regards
Suikan

Re: CodeRed IDE Linux version disconnects FTDI USB-Serial

lpcware — Thu, 16 Jun 2016 02:11:07 GMT

Content originally posted in LPCWare by CodeRedSupport on Wed Mar 16 03:48:42 MST 2011
We use a new version of the FTDI driver. It is possible that your existing software is using an older version of the driver. Please try updating the drivers for your FTDI devices.

Re: CodeRed IDE Linux version disconnects FTDI USB-Serial

lpcware — Thu, 16 Jun 2016 02:11:07 GMT

Content originally posted in LPCWare by suikan on Thu Mar 17 08:00:29 MST 2011
Hi

I am using FTDI 0.17 which is prebuild in Ubuntu 10.04.

Today, I have uninstalled that version and installed libftdi 0.18 ( newest version ). But still I have same trouble.

What is your linux environment?

Re: CodeRed IDE Linux version disconnects FTDI USB-Serial

lpcware — Thu, 16 Jun 2016 02:11:08 GMT

Content originally posted in LPCWare by CodeRedSupport on Thu Mar 17 08:11:59 MST 2011

Quote: suikan
Hi

I am using FTDI 0.17 which is prebuild in Ubuntu 10.04.

Today, I have uninstalled that version and installed libftdi 0.18 ( newest version ). But still I have same trouble.

What is your linux environment?

Ubuntu 10.04.

We don't use libftdi, we use libftd2xx.so.0.4.16, which is supplied with the product.

Re: CodeRed IDE Linux version disconnects FTDI USB-Serial

lpcware — Thu, 16 Jun 2016 02:11:09 GMT

Content originally posted in LPCWare by CodeRedSupport on Thu Mar 17 09:11:18 MST 2011

Quote: suikan
Whenever I launch the debug session with LPC-Link, the USB-Serial interface is disconnected. For example, the /dev/ttyUSB0 is disappeared from system.

OK, we have now managed to replicate this Linux specific issue and will investigate.

Regards,
CodeRedSupport.

Re: CodeRed IDE Linux version disconnects FTDI USB-Serial

lpcware — Thu, 16 Jun 2016 02:11:09 GMT

Content originally posted in LPCWare by suikan on Fri Mar 18 00:47:41 MST 2011

Quote: CodeRedSupport
OK, we have now managed to replicate this Linux specific issue and will investigate.

Thanks,

I have confirmed the libftd2xx 1.0.4 can solve this problem. But it is hard to install this driver for usual Ubuntu user. Becaue the libftdi is standard driver of off-the-shelf Ubuntu 10.04, I appreciate if you solve this problem with libftdi.

Re: CodeRed IDE Linux version disconnects FTDI USB-Serial

lpcware — Thu, 16 Jun 2016 02:11:10 GMT

Content originally posted in LPCWare by CodeRedSupport on Fri Mar 18 00:57:34 MST 2011
Thanks for investigating this and finding a fix that works.

This appears to be a bug in the FTDI drivers and thus the only solution will be to update the libftd2xx driver. We do not use libftdi and so it is not possible to have a workaround in our tools for a bug in their drivers. Sorry.