Hi
we have a number of K8055/K8055-N boards that we use in several projects. After upgrading some x64 machines to Windows 8, we have noticed that the boards no longer work. Where/when could we get a Win8 driver for these boards?
The K8055 and K8055N are using HID (Human Interface Device) driver.
The driver is included in the Windows operating system.
Do you have a problem with the card detection by the PC?
When you plug the card to the PC, does the LED LD8 stay on or off after the flashes?
I have a fresh install of Windows 8, and cannot get the k8055 to show properly. LED 8 blinks two or three times, then stays on. Windows detects a device, but says it has malfunctioned and cannot be identified. Device Manager shows “Unknown Device” and has no values from the USB probe.
Is the card working in other PC?
No, it does not work on any computer. I was just mentioning that it’s a clean install of Windows 8 so you’d know that there is not any other installed software with which it could be conflicting.
On any computer LED08 flashes twice, then stays on solid. I exchanged the kit, and have the same problem. The second time I tested the components with a Fluke DVM before and after soldering. That’s how I spent an entire weekend working on this… I was assuming that I must’ve blown a chip the first time, even though I couldn’t find any failed component. The second kit also being DOA has convinced me something must be going on…
I notice that the K8055 kits have been pulled recently, but the pre-assembled K8055N are still available. Are all the DIY kits defective? Or does an entire batch just apparently have defective ICs?
Have you tried it on an XP machine or maybe on an active (powered) hub?
Note: The K8055N is the newer DIY kit with a different PIC and some changes to the PCB.
The preassembled counterparts are the VM110 and VM110N. Caution there: they don’t have the PIC in a socket but an SMD version soldered directly to the PCB (in case you intend to someday get into micro controller programming with this).
I have both kits (K8055 and K8055N) and they both worked right after assembly. I have a decent number of PC’s available here, running WinXP-32, Win7-32, Win7-64 and a lot of FreeBSD. Plus VMware virtual machines running XP and FreeBSD. Some of the systems have USB 2.0, some 3.0. I have connected both cards to all of these systems directly, through powered and passive USB hubs. I was never able to reproduce the problem you describe (I would really love to see this error myself at least ONCE).
Is there any chance that you can find a different PC or Laptop, preferably running XP, and see if you can get that USB ding-dong sound and see the device “working properly” in the Device Manager?