private void EraseDeploymentSectors(string devicePath, Firmware upgradeFirmware)
{
STDfuDevice device = new STDfuDevice(devicePath);
// TODO: make sure we are in DFU mode; if we are in app mode (runtime) then we need to detach and re-enumerate.
// get our total deployment sectors count
List <uint> allSectorBaseAddresses = new List <uint>();
foreach (Firmware.FirmwareRegion region in upgradeFirmware.FirmwareRegions)
{
if (region.Name.ToUpper() == "DEPLOYMENT")
{
allSectorBaseAddresses.AddRange(region.SectorBaseAddresses);
}
}
// erase each sector
for (int iSector = 0; iSector < allSectorBaseAddresses.Count; iSector++)
{
if (!device.EraseSector(allSectorBaseAddresses[iSector]))
{
throw new Exception("Could not erase sector.");
}
_updateWorker.ReportProgress((int)((((double)iSector + 1) / (double)allSectorBaseAddresses.Count) * 100));
}
//// step 4: restart board
//device.SetAddressPointer(0x08000001); // NOTE: for thumb2 instructinos, we added 1 to the "base address". Otherwise our board will not restart properly.
//// leave DFU mode.
//device.LeaveDfuMode();
}
private void EraseAndUploadDevice(string devicePath, Firmware upgradeFirmware, double startProgressPercent, double operationTotalProgressPercent)
{
double localProgressPercent = 0.0;
STDfuDevice device = new STDfuDevice(devicePath);
// TODO: make sure we are in DFU mode; if we are in app mode (runtime) then we need to detach and re-enumerate.
// get our total sectors and block counts
List <uint> allSectorBaseAddresses = new List <uint>();
uint totalBlockCount = 0;
foreach (Firmware.FirmwareRegion region in upgradeFirmware.FirmwareRegions)
{
allSectorBaseAddresses.AddRange(region.SectorBaseAddresses);
if (region.Filename != null)
{
System.IO.StreamReader streamReader = new System.IO.StreamReader(upgradeFirmware.FolderPath + "\\" + region.Filename);
string hexFileString = streamReader.ReadToEnd();
streamReader.Dispose();
byte[] hexFileBytes = SrecHexEncoding.GetBytes(hexFileString, region.BaseAddress);
totalBlockCount += (uint)Math.Ceiling((double)hexFileBytes.Length / (double)device.BlockTransferSize);
}
}
// erase each sector
for (int iSector = 0; iSector < allSectorBaseAddresses.Count; iSector++)
{
if (!device.EraseSector(allSectorBaseAddresses[iSector]))
{
throw new Exception("Could not erase sector.");
}
localProgressPercent = (((double)iSector + 1) / (double)allSectorBaseAddresses.Count) * 0.5;
_updateWorker.ReportProgress(CalculateWorkerProgress(localProgressPercent, startProgressPercent, operationTotalProgressPercent));
}
// do "read unprotect"
//Debug.Print("Unprotecting all sectors, erasing...");
//Debug.Print("operation " + (stdfuDeviceReadUnprotect() ? "SUCCESS" : "FAILED"));
//// do mass erase
//Debug.Print("erasing all sectors...");
//Debug.Print("operation " + (device.EraseAllSectors() ? "SUCCESS" : "FAILED"));
//localProgressPercent = 0.3;
// now flash the board!
ushort blockSize = device.BlockTransferSize;
ushort completedBlocks = 0;
foreach (Firmware.FirmwareRegion region in upgradeFirmware.FirmwareRegions)
{
if (region.Filename != null)
{
System.IO.StreamReader streamReader = new System.IO.StreamReader(upgradeFirmware.FolderPath + "\\" + region.Filename);
string hexFileString = streamReader.ReadToEnd();
streamReader.Dispose();
byte[] hexFileBytes = SrecHexEncoding.GetBytes(hexFileString, region.BaseAddress);
// set our download address pointer
if (device.SetAddressPointer(region.BaseAddress) == false)
{
throw new Exception("Could not set base address for flash operation.");
}
// write blocks to the board and verify; we must have already erased our sectors before this point
for (ushort index = 0; index <= (hexFileBytes.Length / blockSize); index++)
{
// write block to the board
byte[] buffer = new byte[Math.Min(hexFileBytes.Length - (index * blockSize), blockSize)];
Array.Copy(hexFileBytes, index * blockSize, buffer, 0, buffer.Length);
bool success = device.WriteMemoryBlock(index, buffer);
if (!success)
{
throw new Exception("Write failed.");
}
// verify written block
byte[] verifyBuffer = new byte[buffer.Length];
success = device.ReadMemoryBlock(index, verifyBuffer);
if (!success || !buffer.SequenceEqual(verifyBuffer))
{
throw new Exception("Verify failed.");
}
completedBlocks++;
localProgressPercent = 0.5 + (((double)(completedBlocks + 1) / (double)totalBlockCount) * 0.5);
_updateWorker.ReportProgress(CalculateWorkerProgress(localProgressPercent, startProgressPercent, operationTotalProgressPercent));
}
}
}
// step 4: restart board
device.SetAddressPointer(0x08000001); // NOTE: for thumb2 instructinos, we added 1 to the "base address". Otherwise our board will not restart properly.
// leave DFU mode.
device.LeaveDfuMode();
}
