public static void Upload(PageCollection pageCollection)
{
OutputPort onboardLed = new OutputPort(ShieldConfiguration.CurrentConfiguration.OnboardLedPin, true);
SPI.Configuration spiConfig = new SPI.Configuration(
ShieldConfiguration.CurrentConfiguration.SpiChipSelectPin,
false,
100,
100,
false,
true,
1000,
ShieldConfiguration.CurrentConfiguration.SpiModule
);
var spi = new SpotSpi(spiConfig);
var uploader = new Uploader(spi);
if (uploader.IsShieldInBootloaderMode())
{
var uploadStatusIndicator = new UploadStatusIndicator(
spi
);
try
{
//var securityRegisterData = uploader.SecurityRegisterRead();
//var userData = new byte[Constants.SecurityRegisterUserFieldLength];
//Array.Copy(securityRegisterData, 4, userData, 0, userData.Length);
//var userDataString = new string(System.Text.Encoding.UTF8.GetChars(userData));
//Debug.Print("Programming \"" + userDataString + "\"");
uploadStatusIndicator.Status = UploadStatusIndicator.UploadStatus.Uploading;
uploader.UploadBitstream(pageCollection);
uploadStatusIndicator.Status = UploadStatusIndicator.UploadStatus.Succeeded;
}
catch
{
// Any exception is a failed upload
uploadStatusIndicator.Status = UploadStatusIndicator.UploadStatus.Failed;
throw;
}
finally
{
onboardLed.Write(false);
}
}
else
{
// Flash the onboard LED to indicate upload failure due to
// not being in bootstrapping mode
Thread.Sleep(500);
onboardLed.Write(false);
Thread.Sleep(500);
onboardLed.Write(true);
Thread.Sleep(500);
onboardLed.Write(false);
}
}
public void UploadBitstream(PageCollection pageCollection)
{
foreach (Page page in pageCollection)
{
bool verifyFailed = false;
int verifyFailedCount = 0;
do
{
// Wait until ready
WaitUntilReady();
// Write it to the ISF
page.Data[page.Offset] = (byte)SpiCommands.PageProgramThroughBuffer1;
spi.Write(page.Data, page.Offset, Constants.SramPageBufferSize + 4);
// Wait until ready
WaitUntilReady();
// Verify it wrote
page.Data[page.Offset] = (byte)SpiCommands.PageToBuffer1Compare;
spi.Write(page.Data, page.Offset, 4);
// Wait until ready, and when it is, the compare result
// comes back in bit 6. Set is bad.
verifyFailed = ((WaitUntilReady() & Constants.StatusRegisterCompareMask) != 0);
if (verifyFailed)
{
Debug.Print("Failed to write page");
++verifyFailedCount;
if (verifyFailedCount == MaxPageWriteRetries)
{
throw new XilinxUploaderException("Failed to write page");
}
}
else
{
// Page successfully uploaded
}
} while (verifyFailed);
}
}
