topic Re: LPC_Link not releasing USB on Terminate in LPCXpresso IDE

LPC_Link not releasing USB on Terminate

lpcware — Thu, 16 Jun 2016 02:55:15 GMT

Content originally posted in LPCWare by caprock on Mon Feb 14 17:55:23 MST 2011
xpresso_3.6, LPC_Link, Win7, LPC1343 on EA-Baseboard Rev A, Acer Laptop
xpresso_3.6, LPC_Link, WinXP/SP3, LPC1343 on EA-Baseboard Rev A, Dell B110
USB/LPC_Link connected from 1343 to PC
USB/Console connected from USBX3 t PC; TeraTerm console

:confused:
Hello,
I am restarting with xpresso after several months, and have upgraded the Code Red installations from 3.2 and 3.3 to 3.6 as indicated. This version seems to operate a bit different from what I recalled - but then again, it's been almost a year..

[B]On WinXP System (original install)[/B]
A debug session can be started successfully, but the Termination process seems to always fail to disconnect the LPC_Link, so the next debug launch fails with:
"Connected to emulator or board: NXP LXP 1300"
"2 emulators/boards found (1 connected)"

"Device is connected already Other VIDPID=00000000(Connected)"
"LPC-Link Probe v1.0 (id=T1S6RGRIA) [-wire=winUSB]"

The board seems to work again after a complete power cycle [B]and[/B] the disconnect of the TeraTerm (if left connected, we fail at 57% and Task manager shows hanging on the TeraTerm). If we do both Disconnect TeraTerm and the power cycle it mostly does the link load; re-connect TeraTerm; then Resume (F8).

btw: per post of 1/28/2011, I updated the ftd2xx.dll to the newer 7/9/2010 - this system only.

[B]On Win7 System[/B]
A debug session can be started successfully, but the Termination process seems to not always disconnect the LPC_Link, so the next debug launch fails with:
"Connected to emulator or board: NXP LXP 1300"
"2 emulators/boards found (1 connected)"

"Device is connected already Other VIDPID=00000000(Connected)"
"LPC-Link Probe v1.0 (id=T1S6RGRIA) [-wire=HID]"

The board seems to work again after a complete power cycle: remove both USBs; connect Console; connect LPC_Link

[B]Confusion[/B]
This behavior leads to much confusion, leading me to change systems as well as several days researching issues on this forum. I noticed that the default installation seems different for v3.6 from previous in that HID is checked and was not in the earlier release.

I'm certain that this is due to some settings, but at a loss to understand just where to look. Any assistance would be most welcome!

Re: LPC_Link not releasing USB on Terminate

lpcware — Thu, 16 Jun 2016 02:55:15 GMT

Content originally posted in LPCWare by Ex-Zero on Mon Feb 14 18:43:12 MST 2011
Can you select

"LPC-Link Probe v1.0 (id=T1S6RGRIA) [-wire=winUSB]"

and start debugging ?

Re: LPC_Link not releasing USB on Terminate

lpcware — Thu, 16 Jun 2016 02:55:16 GMT

Content originally posted in LPCWare by caprock on Mon Feb 14 18:54:43 MST 2011
On WinXP system that is the setting.
Perhaps I don't understand the question. How can I just select the probe?

Currently I am using the 'Bug' and/or the 'Debug' from Quick menu.

Re: LPC_Link not releasing USB on Terminate

lpcware — Thu, 16 Jun 2016 02:55:17 GMT

Content originally posted in LPCWare by Ex-Zero on Mon Feb 14 19:16:58 MST 2011
Sorry, wasn't accurate enough :)

After starting a debug session (in Quickstart Panel) sometimes a window shows this error

"Device is connected already Other VIDPID=00000000(Connected)"
"LPC-Link Probe v1.0 (id=T1S6RGRIA) [-wire=winUSB]"

There you can select

"LPC-Link Probe v1.0 (id=T1S6RGRIA) [-wire=winUSB]"

and a debug session is started.

Re: LPC_Link not releasing USB on Terminate

lpcware — Thu, 16 Jun 2016 02:55:17 GMT

Content originally posted in LPCWare by caprock on Tue Feb 15 09:51:13 MST 2011
Zero,

YES this seems to work. :)

When the message appeared:
"Device is connected already Other VIDPID=00000000(Connected)"
"LPC-Link Probe v1.0 (id=T1S6RGRIA) [-wire=winUSB]"

I double-clicked the LPC_Link Probe line and it did the connect!
Thank you for that explanation.