">If required you can run the Atmel Studio 6.1 Jungo driver install again and revert to Atmel Studio drivers with the avrispmkII."
How can this be done exactly? I've re-run the Atmel Studio installer, selected repair mode (the only other option was de-install, there was no option for installing only drivers) but that did not fix it.
The reason I ask is this: the Visual Micro programming via AVRISP mkII now works fine, but it seems to work only for chips that have previously been programmed: on a new empty AVR the programming appears to work, but the AVR runs extremely slow afterwards (*). Tried another empty AVR, but same result. On 2 other chips that have already been used before all still works fine. So I'm guessing some fuse bits may be wrong in the empty chips? And for setting those I need the Jungo driver so the "Device Programming" toolbar button can be used, is this not correct? Any insights into this problem would be appreciated...
(*) Judging by LED blink rate, it seems to be about 10x slower. Also the 16MHz xtal has no signal, I guess an internal oscillator is used instead.
All 4 chips mentioned are ATmega328P.
I also tried the procedure at
http://support.atmel.com/bin/customer.exe?=&action=viewKbEntry&id=1343 It produced: C:\Program Files (x86)\Atmel\AVR Jungo USB\usb64>wdreg.exe -log atmelusb.log -inf windrvr6.inf install
WDREG utility v11.00. Build Feb 27 2012 14:45:04
Processing HWID *WINDRVR6
Installing a signed driver package for *WINDRVR6
LOG ok: 1, ENTER: DriverPackageInstallA
LOG ok: 1, ENTER: DriverPackageInstallW
LOG ok: 1, Looking for Model Section [DeviceList.NTamd64]...
LOG ok: 1, Installing INF file 'C:\Program Files (x86)\Atmel\AVR Jungo USB\usb64\windrvr6.inf' (Plug and Play).
LOG ok: 1, Looking for Model Section [DeviceList.NTamd64]...
LOG ok: 1, Installing devices with Id "*WINDRVR6" using INF "C:\Windows\System32\DriverStore\FileRepository\windrvr6.inf
_amd64_neutral_c8d97cf517cd4518\windrvr6.inf".
LOG ok: 1, ENTER UpdateDriverForPlugAndPlayDevices...
LOG ok: 0, RETURN UpdateDriverForPlugAndPlayDevices.
LOG ok: 1, Installation was successful.
LOG ok: 0, Install completed
LOG ok: 1, RETURN: DriverPackageInstallW (0x0)
LOG ok: 1, RETURN: DriverPackageInstallA (0x0)
difx_install_preinstall_inf: err 0, last event 0, last error 0. SUCCESS
install: completed successfully
But still (even after re-boot of PC) pressing "Apply" in the "Device Programming" window of AtmelStudio produces:
"Unable to connect to tool AVRISP mkII"
details:
Timestamp: 2014-01-07 12:38:16.047
Severity: ERROR
ComponentId: 20100
StatusCode: 1
ModuleName: TCF (TCF command: Tool:connect failed.)
In the windows Device Manager the Jungo WinDriver also reports "This device is working properly".
Meanwhile F5 still works fine:
"Uploading to I/O board using 'avrispmkii'
Done uploading"