private void UploadFile(STDfuDevice device, string filepath, uint address)
{
ushort blockSize = device.BlockTransferSize;
byte[] hexFileBytes = File.ReadAllBytes(filepath);
// set our download address pointer
if (device.SetAddressPointer(address) == 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)
{
Console.WriteLine("write failed");
}
}
}
private async Task <bool> DfuFlash(string filepath, uint address)
{
FileInfo fi = new FileInfo(filepath);
string display = $"file: {filepath}";
if (filepath.StartsWith(Globals.FirmwareDownloadsFilePath))
{
var payload = File.ReadAllText(Path.Combine(Globals.FirmwareDownloadsFilePath, VersionCheckFile));
display = $"downloaded version: {ExtractJsonValue(payload, "version")}";
}
var query = "SELECT * FROM Win32_USBHub";
ManagementObjectSearcher device_searcher = new ManagementObjectSearcher(query);
string deviceId = string.Empty;
foreach (ManagementObject usb_device in device_searcher.Get())
{
if (usb_device.Properties["Name"].Value.ToString() == "STM Device in DFU Mode")
{
deviceId = usb_device.Properties["DeviceID"].Value.ToString();
break;
}
}
if (!string.IsNullOrEmpty(deviceId))
{
using (var device = new STDfuDevice($@"\\?\{deviceId.Replace("\\", "#")}#{{{DEVICE_INTERFACE_GUID_STDFU.ToString()}}}"))
{
try
{
await OutputMessageAsync($"Upload {fi.Name} (~2 mins)");
await Task.Run(() =>
{
device.EraseAllSectors();
UploadFile(device, filepath, address);
device.LeaveDfuMode();
});
return(true);
}
catch (Exception ex)
{
await OutputMessageAsync($"An error occurred while flashing the device: {ex.Message}");
}
finally
{
device.Dispose();
}
return(false);
}
}
else
{
if (_skipFlashToSelectDevice)
{
return(true);
}
else
{
await OutputMessageAsync("Device not found. Connect the device in bootloader mode by plugging in the device while holding down the BOOT button.");
await OutputMessageAsync("For more help, visit http://developer.wildernesslabs.co/Meadow/Meadow_Basics/Troubleshooting/VisualStudio/");
}
}
return(false);
}
private async void Flash_Device(object sender, RoutedEventArgs e)
{
OutputMessage("Preparing to update device firmware...", true);
List <FileInfo> files = new List <FileInfo>();
if (Directory.Exists(Globals.FirmwareDownloadsFilePath))
{
DirectoryInfo di = new DirectoryInfo(Globals.FirmwareDownloadsFilePath);
files = di.GetFiles().ToList();
}
if (!files.Any(x => x.Name == osFileName) || !files.Any(x => x.Name == latestJson))
{
OutputMessage("Download the latest firmware before flashing the device.");
return;
}
var query = "SELECT * FROM Win32_USBHub";
ManagementObjectSearcher device_searcher = new ManagementObjectSearcher(query);
string deviceId = string.Empty;
foreach (ManagementObject usb_device in device_searcher.Get())
{
if (usb_device.Properties["Name"].Value.ToString() == "STM Device in DFU Mode")
{
deviceId = usb_device.Properties["DeviceID"].Value.ToString();
}
}
var payload = File.ReadAllText(Path.Combine(Globals.FirmwareDownloadsFilePath, latestJson));
if (!string.IsNullOrEmpty(deviceId))
{
OutputMessage($"Deploying firmare version {GetVersionFromPayload(payload)} to device.");
var device = new STDfuDevice($@"\\?\{deviceId.Replace("\\", "#")}#{{{DEVICE_INTERFACE_GUID_STDFU.ToString()}}}");
await task.Task.Run(async() =>
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
OutputMessage("Erasing sectors");
await TaskScheduler.Default;
device.EraseAllSectors();
OutputMessage($"Starting upload, this may take a couple minutes...");
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
OutputMessage($"Uploading {osFileName}");
await TaskScheduler.Default;
UploadFile(device, Path.Combine(Globals.FirmwareDownloadsFilePath, osFileName), 0x08000000);
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
OutputMessage($"Resetting device");
await TaskScheduler.Default;
device.LeaveDfuMode();
device.Dispose();
System.Threading.Thread.Sleep(2000);
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
OutputMessage($"Complete");
});
}
else
{
OutputMessage("Device not found. Connect the device in bootloader mode by plugging in the device while holding down the BOOT button.");
OutputMessage("For more help, visit http://developer.wildernesslabs.co/Meadow/Meadow_Basics/Troubleshooting/VisualStudio/");
}
RefreshDeviceList();
}
