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  Problem with CP2102 USB TO UART BRIDGE CONTROLLER drivers

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Author Topic:   Problem with CP2102 USB TO UART BRIDGE CONTROLLER drivers
Anil
New Member 		posted December 28, 2007 03:15 AM     Click Here to See the Profile for Anil   Click Here to Email Anil     Edit/Delete Message
Hi,
i am using CP2102 USB TO UART BRIDGE CONTROLLER in my proto broad and i am facing some problem while interfacing with the PC.
I installed the latest driver from the silabs website and when i connect my device it shows in the device manager but when i run Flash Tool application (to flash the board) it doesnt open the comport for communication and when i traced the serial communication
With Portman software i got some result and it is attached in the email.
My OS is windows XP SP2 but to my surprise when i installed same software drivers in my laptop (IBM laptop OS - windows XP SP 2) it was working, then i tried on almost 5 desktop PC and 2 Laptop(DELL) which has same configuraion and it was not working and giving same error as you can see it in attachment.

I am just wondering what could be the cause for this problem.
Need your help to solve this problem.

Thanks
Anil Patil
0.01135754 FlashTool_E2.ex IRP_MJ_CREATE Silabser0 SUCCESS Options: Open
0.00320373 FlashTool_E2.ex IOCTL_SERIAL_PURGE Silabser0 SUCCESS Purge: TXABORT RXABORT TXCLEAR RXCLEAR
0.00569387 FlashTool_E2.ex IOCTL_SERIAL_GET_PROPERTIES Silabser0 SUCCESS
0.00596034 FlashTool_E2.ex IOCTL_SERIAL_GET_PROPERTIES Silabser0 SUCCESS
0.00001493 FlashTool_E2.ex IOCTL_SERIAL_SET_QUEUE_SIZE Silabser0 * 0xC0000001 InSize: 32768 OutSize: 32768
0.00000902 FlashTool_E2.ex IRP_MJ_CLEANUP Silabser0 SUCCESS
0.00890041 FlashTool_E2.ex IRP_MJ_CLOSE Silabser0 SUCCESS
0.01282066 FlashTool_E2.ex IRP_MJ_CREATE Silabser0 SUCCESS Options: Open
0.00293715 FlashTool_E2.ex IOCTL_SERIAL_PURGE Silabser0 SUCCESS Purge: TXABORT RXABORT TXCLEAR RXCLEAR
0.00596611 FlashTool_E2.ex IOCTL_SERIAL_GET_PROPERTIES Silabser0 SUCCESS
0.00595009 FlashTool_E2.ex IOCTL_SERIAL_GET_PROPERTIES Silabser0 SUCCESS
0.00001490 FlashTool_E2.ex IOCTL_SERIAL_SET_QUEUE_SIZE Silabser0 * 0xC0000001 InSize: 32768 OutSize: 32768
0.00000933 FlashTool_E2.ex IRP_MJ_CLEANUP Silabser0 SUCCESS
0.01162254 FlashTool_E2.ex IRP_MJ_CLOSE Silabser0 SUCCESS

IP: Logged

Tsuneo
Member 		posted December 29, 2007 12:33 AM     Click Here to See the Profile for Tsuneo   Click Here to Email Tsuneo     Edit/Delete Message
It is the same bug, IOCTL_SERIAL_SET_QUEUE_SIZE, which discussed on this topic, "Problems with RealTerm and CP210x"

I sent a bug report to SiLabs on this issue.

Of my great interest, you have succeeded to run it on one of your laptop without error.
It may bring us some workaround.

Did you monitor the session with PortMon on this success case?
What are the InSize and OutSize parameters of IOCTL_SERIAL_SET_QUEUE_SIZE?

Tsuneo


0.01135754  FlashTool_E2.ex  IRP_MJ_CREATE                Silabser0  SUCCESS
                               Options: Open
0.00320373  FlashTool_E2.ex  IOCTL_SERIAL_PURGE           Silabser0  SUCCESS
                               Purge: TXABORT RXABORT TXCLEAR RXCLEAR
0.00569387  FlashTool_E2.ex  IOCTL_SERIAL_GET_PROPERTIES  Silabser0  SUCCESS
0.00596034  FlashTool_E2.ex  IOCTL_SERIAL_GET_PROPERTIES  Silabser0  SUCCESS
0.00001493  FlashTool_E2.ex  IOCTL_SERIAL_SET_QUEUE_SIZE  Silabser0  * 0xC0000001
                               InSize: 32768 OutSize: 32768

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