A Windows CE XScale-based platform cannot perform serial transactions after the platform resumes from standby (891897)

Microsoft Windows CE 5.0

SYMPTOMS

When a Microsoft Windows CE XScale-based platform resumes from standby, you cannot perform serial transactions.

This problem occurs because of a problem with the serial driver for the XScale platform in Windows CE 5.0 Platform Builder.

To resolve this problem, follow these steps:

Open the WINCE500\PUBLIC\COMMON\OAK\CSP\ARM\INTEL\PXA25X\SERIAL\PDD16550\xsc16550.cpp source file for your XScale platform in Windows CE 5.0 Platform Builder.

Locate the following function in the source file:

void CXSCReg16550::Restore()
{
    if (m_fIsBackedUp) {
        Restore();
        Write_SIR(m_SIRBackup);
    }
}

Replace the function in step 2 with the following code:

void CXSCReg16550::Restore()
{
    if (m_fIsBackedUp) {
        CReg16550::Restore();
        Write_SIR(m_SIRBackup);
    }
}

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Modification Type:

Major

Last Reviewed:

2/3/2005

Keywords:

kbpending kbBug kbtshoot KB891897 kbAudDeveloper