mtstarr

Sorry, should have said the device is at 0x68, not 0x83

I still cannot get I2C to work, I did reflash with 4.2.2, it seemed to complete okay. I am running a "demo program" that should at least talk to the device.   Here is the output from .Net deployment tool, any ideas what I may have missed in the upgrades? The symptoms look similar but I do not have a scope so I cannot tell. I am plugged into SCA and SCL rather than A4 and 5. The device is a  MPU9150 at address 0x83

HalSystemInfo.halVersion: 4.2.0.0

HalSystemInfo.halVendorInfo: Netduino Plus 2 (v4.2.2.2) by Secret Labs LLC

HalSystemInfo.oemCode: 34

HalSystemInfo.modelCode: 177

HalSystemInfo.skuCode: 4102

HalSystemInfo.moduleSerialNumber: 00000000000000000000000000000000

HalSystemInfo.systemSerialNumber: 0000000000000000

ClrInfo.clrVersion: 4.2.0.0

ClrInfo.clrVendorInfo: Netduino Plus 2 (v4.2.2.2) by Secret Labs LLC

ClrInfo.targetFrameworkVersion: 4.2.0.0

SolutionReleaseInfo.solutionVersion: 4.2.2.2

SolutionReleaseInfo.solutionVendorInfo: Netduino Plus 2 (v4.2.2.2) by Secret Labs LLC

SoftwareVersion.BuildDate: Jan 26 2013

SoftwareVersion.CompilerVersion: 410894

FloatingPoint: True

SourceLevelDebugging: True

ThreadCreateEx: True

LCD.Width: 0

LCD.Height: 0

LCD.BitsPerPixel: 0

AppDomains: True

ExceptionFilters: True

IncrementalDeployment: True

SoftReboot: False

Profiling: False

ProfilingAllocations: False

ProfilingCalls: False

IsUnknown: False

Thanks again for your time.