private int PollSromStatus(uint timeOut, out string strError)
{
int hr = S_OK;
bool fTimeout = false;
int baseAddr = CPUSS_SYSREQ;
int readData;
int timeStart, timeNow;
//Poll for operation completion
timeStart = GetTickCount();
do
{
if (fTimeout)
{
strError = "Timeout of SROM polling. Lost communication with chip.";
return(E_FAIL);
}
hr = Programmer.DAP_ReadIO(baseAddr, out readData, out strError);
if (!IsSuccess(hr))
{
return(hr);
}
timeNow = GetTickCount();
fTimeout = ((timeNow - timeStart) >= timeOut);
unchecked
{
readData &= (int)(SROM_SYSREQ_BIT | SROM_PRIVILEGED_BIT);
}
} while (readData != 0x00); //this bit is reset when SROM request completed
//Check status of operation
int statusCode;
hr = Programmer.DAP_ReadIO(CPUSS_SYSARG, out statusCode, out strError);
if (!IsSuccess(hr))
{
return(hr);
}
if ((statusCode & 0xF0000000) != SROM_STATUS_SUCCEEDED)
{
strError = SROM_FormatStatus(statusCode);
return(E_FAIL);
}
return(hr);
}