MemoryMapFailedException at Blinkexample
msobeck opened this issue · 3 comments
Hello, i was testing your SampleProject "GPIO.Blink" using a RPI 3 Model B+ and the repository Version 1.3.2 and once 1.3.3 Beta from Nuget.Org.
Following Error occurs when the program reaches this line:
conPin = new GpioConnection(ProcessorPin.Gpio16.Output());
Unhandled Exception:
RaspberrySharp.IO.Interop.MemoryMapFailedException: Exception of type 'RaspberrySharp.IO.Interop.MemoryMapFailedException' was thrown.
at RaspberrySharp.IO.Interop.MemoryMap.ThrowOnError[TException] (System.IntPtr result) [0x00016] in <807f0c5432f14949b24392f867d967bd>:0
at RaspberrySharp.IO.Interop.MemoryMap.Create (System.IntPtr address, System.UInt32 size, RaspberrySharp.IO.Interop.MemoryProtection protection, RaspberrySharp.IO.Interop.MemoryFlags memoryflags, System.Int32 fileDescriptor, System.UInt32 offset) [0x00019] in <807f0c5432f14949b24392f867d967bd>:0
at RaspberrySharp.IO.GeneralPurpose.GpioConnectionDriver..ctor () [0x00051] in <807f0c5432f14949b24392f867d967bd>:0
at RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings.GetBestDriver (RaspberrySharp.IO.GeneralPurpose.GpioConnectionDriverCapabilities capabilities) [0x0000f] in <807f0c5432f14949b24392f867d967bd>:0
at RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings.get_DefaultDriver () [0x00010] in <807f0c5432f14949b24392f867d967bd>:0
at RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings..ctor () [0x00008] in <807f0c5432f14949b24392f867d967bd>:0
at RaspberrySharp.IO.GeneralPurpose.GpioConnection..ctor (RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings settings, System.Collections.Generic.IEnumerable1[T] pins) [0x0002e] in <807f0c5432f14949b24392f867d967bd>:0 at RaspberrySharp.IO.GeneralPurpose.GpioConnection..ctor (RaspberrySharp.IO.GeneralPurpose.PinConfiguration[] pins) [0x00000] in <807f0c5432f14949b24392f867d967bd>:0 at Blink.Program.Main () [0x00030] in <efb2d7af641f4c6685cfeead2cd2653c>:0 [ERROR] FATAL UNHANDLED EXCEPTION: RaspberrySharp.IO.Interop.MemoryMapFailedException: Exception of type 'RaspberrySharp.IO.Interop.MemoryMapFailedException' was thrown. at RaspberrySharp.IO.Interop.MemoryMap.ThrowOnError[TException] (System.IntPtr result) [0x00016] in <807f0c5432f14949b24392f867d967bd>:0 at RaspberrySharp.IO.Interop.MemoryMap.Create (System.IntPtr address, System.UInt32 size, RaspberrySharp.IO.Interop.MemoryProtection protection, RaspberrySharp.IO.Interop.MemoryFlags memoryflags, System.Int32 fileDescriptor, System.UInt32 offset) [0x00019] in <807f0c5432f14949b24392f867d967bd>:0 at RaspberrySharp.IO.GeneralPurpose.GpioConnectionDriver..ctor () [0x00051] in <807f0c5432f14949b24392f867d967bd>:0 at RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings.GetBestDriver (RaspberrySharp.IO.GeneralPurpose.GpioConnectionDriverCapabilities capabilities) [0x0000f] in <807f0c5432f14949b24392f867d967bd>:0 at RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings.get_DefaultDriver () [0x00010] in <807f0c5432f14949b24392f867d967bd>:0 at RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings..ctor () [0x00008] in <807f0c5432f14949b24392f867d967bd>:0 at RaspberrySharp.IO.GeneralPurpose.GpioConnection..ctor (RaspberrySharp.IO.GeneralPurpose.GpioConnectionSettings settings, System.Collections.Generic.IEnumerable1[T] pins) [0x0002e] in <807f0c5432f14949b24392f867d967bd>:0
at RaspberrySharp.IO.GeneralPurpose.GpioConnection..ctor (RaspberrySharp.IO.GeneralPurpose.PinConfiguration[] pins) [0x00000] in <807f0c5432f14949b24392f867d967bd>:0
at Blink.Program.Main () [0x00030] in :0
Any idea's how i can solve this ?
Are you running it with escalated privileges, e.g. sudo mono testapp.exe? I've found it has to be run with sudo to interact with GPIO.
Yes please. First try: sudo mono appname.exe.
Then, let us know if it works (it should).
You are right,
"sudo mono appname.exe." solved the problem!
Thank you so much for keeping the Raspberry Repository for new Models alive, this is amazing!