Lpc2000

The Keil's board doesn't support soft connect,
you need to add extra H/W logic to make it work.
Go to Keil's website, these is an app-note about that.

I also suggest that you fix the VBUS issue mentioned
on Keil's website.

After adding soft connect logic, to test unplug and 
unplug, I also suggest that you use external power 
on the board.

regards,
Philips app.



--- In lpc2000@yahoogroups.com, Herivaldo Maia <maiatec2005@...> 
wrote:
>
> Hi Tom,
>    
>   My hardware is so strange !
>    
>   In anex the schematic in pdf.
>    
>   Five times in hundred of tries, it works.
>   I could install the driver and using Hyperterminal I could 
transmit/receive by virtual com serial (COM3 was used).
>    
>   At most time the hardware is not recognize. And sometimes it 
works !.
>    
>   What is happening ?
>    
>   When the hardware is working if it´s not unplugged, it´s work 
indefinitely. But, after unplugged, it doesn´t work after re-plugged.
>    
>   thanks,
>    
>   Maia.
> 
> philips_apps <philips_apps@...> escreveu:
>   Maia,
>     I suspect that your firmware is not running. Can you 
> reprogram the flash and use a known, good HID example to
> test first?
>     Yes, it's important that, your PID and VID should match
> between these in the descriptor table of the firmware and 
> host driver INF file. The mismatch in the PID and VID area was 
> the only installtion issue people complained about long time 
> ago. Since then, I've not heard of any installation issues.
>     Uninstall the VCOM drivers, have a clean start, once you
> plug in the USB cable, the window device manager should pop out
> automatically and ask for host driver info. If not, something
> is wrong in the firmware already.
>     A very effective way to debug the firmware is, add external
> power +5V on VIN of the Keil MCB2140 board, program the flash, 
> start the debugger, set to run, unplug and replug the USB cable,
> then you can single step to debug.
>     Check the device manager, if there are some drivers installed
> under "Others" area, check what they are, uninstall them, 
> minimize the number of USB connections first, just for testing
> purposes. 
>     The two OS platforms we tested are W2K and XP. What's yours?
> 
> Regards,
> Tom
> 
> 
> --- In lpc2000@yahoogroups.com, "MAIA" <maiatec2005@> wrote:
> >
> > 
> > in PLP2KUS.INF is writen as described below
> >              ....
> > [Manufacturer]
> > %Philips%=MRI
> > 
> > [MRI]
> > %PhilipsUSBSerial%=Philips.Install,USB\VID_C251&PID_1305&MI_00
> > %PhilipsUSBSerial%=Philips.Install,USB\VID_C251&PID_1305&MI_01
> >              ...
> > 
> > in my firmware(LPC2148) is writen 
> > 0xc251 for ID (vendor), and
> > 0x1305 for ID (Product).
> > 
> > Windows shows "unknow device"
> > I try to reinstall drive PLP2KUS.INF but the message saying no 
> > information about my hardware appears.
> > 
> > I don´t know what to do.
> > 
> > 
> > Maia.
> > 
> > 
> > 
> > --- In lpc2000@yahoogroups.com, "philips_apps" <philips_apps@> 
> > wrote:
> > >
> > > Without enough description of your problem, here are a few 
> things 
> > > you can try:
> > > 
> > > (1) Try something you know is working first, e.g. USB HID 
> examples
> > > from Keil.
> > >  
> > > (2) After programming the flash, unplug the JTAG connector, 
> > > then reboot the board again.
> > > 
> > > (3) Maybe, the host driver is in a unknown state, uninstalled
> > > the host driver, reboot the board, it'll ask for the driver
> > > again. You use the steps I described in the previous msg.
> > > to reinstall.
> > > 
> > > (4) Reboot the PC.
> > > 
> > > (5) Check the board jumper setting.
> > > 
> > > Philips Apps
> > > 
> > > 
> > > --- In lpc2000@yahoogroups.com, "MAIA" <maiatec2005@> wrote:
> > > >
> > > > I did that !!
> > > > But after that, it shows a message that unrecognize my 
> Hardware.
> > > > 
> > > > --- In lpc2000@yahoogroups.com, "philips_apps" 
<philips_apps@> 
> > > > wrote:
> > > > >
> > > > > Program the flash,
> > > > > unplug and replug the USB cable,
> > > > > Window Plug-and-play device manager
> > > > > will pop out and ask for installation info.,
> > > > > choose "install from a specific location",
> > > > > goto "VCOMHostDrv/PLPU-S2K",
> > > > > click OK,
> > > > > once it look for a PLP2US.sys file,
> > > > > it's under "objchk_w2k_x86/i386" directory,
> > > > > click OK again to install the sys file.
> > > > > 
> > > > > There are two COM ports in the host driver,
> > > > > so you will be asked twice to install both
> > > > > COM ports on.
> > > > > 
> > > > > Philips App.
> > > > > 
> > > > > 
> > > > > --- In lpc2000@yahoogroups.com, "MAIA" <maiatec2005@> 
wrote:
> > > > > >
> > > > > > I´m using LPC2148 to convert USB-RS232.
> > > > > > My hardware is ok. But, I don´t know how to install PLPU-
> S2K 
> > > > > driver.
> > > > > > Could You give to me the steps to install this driver on 
> > > Windows 
> > > > > XP ?
> > > > > > Like a tutorial ?
> > > > > > 
> > > > > > Thanks,
> > > > > > 
> > > > > > Maia.
> > > > > > 
> > > > > > --- In lpc2000@yahoogroups.com, "arrek_x" <hal9900@> 
wrote:
> > > > > > >
> > > > > > > I solved the problem and driver started working - it 
was 
> an 
> > > > > > electrical 
> > > > > > > problem (Windows was not a reason ;) ). Sorry for 
taking 
> > > your 
> > > > > time.
> > > > > > > 
> > > > > > > greetings
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> 
> 
> 
> 
> 
> 
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