supra

hello, We are upgrading to 4.3 but now we get a error bitwise shifting in Visual Basic to get the time from a NTP time server. This is old code and always worked in 4.2

 

 

 

Dim lIntPart As Long = 0 Dim lFractPart As Long = 0

For i As Integer = 0 To 3 lIntPart = (lIntPart << 8) Or ntpData(bOffsetTransmitTime + i) Next   For i As Integer = 4 To 7 lFractPart = (lFractPart << 8) Or ntpData(bOffsetTransmitTime + i) Next  

 

Error 1 Type 'System.Nullable(Of )' is not defined. (The error is under the << 8)

 

Does anyone knows why and also there is a buildin function in the SDK 4.3 for calling the time server.

How can we call this function?  

Public Shared Function GetNetworkTime() As DateTime	Dim ep As New IPEndPoint(Dns.GetHostEntry("time-a.nist.gov").AddressList(0), 123)	Dim s As New Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp)	s.Connect(ep)	Dim ntpData As Byte() = New Byte(47) {}	' RFC 2030	ntpData(0) = &H1b	For i As Integer = 1 To 47		ntpData(i) = 0	Next	s.Send(ntpData)	s.Receive(ntpData)	Dim offsetTransmitTime As Byte = 40	Dim intpart As ULong = 0	Dim fractpart As ULong = 0	For i As Integer = 0 To 3		intpart = 256 * intpart + ntpData(offsetTransmitTime + i)	Next	For i As Integer = 4 To 7		fractpart = 256 * fractpart + ntpData(offsetTransmitTime + i)	Next	Dim milliseconds As ULong = (intpart * 1000 + (fractpart * 1000) / &H100000000L)	s.Close()	Dim timeSpan__1 As TimeSpan = TimeSpan.FromTicks(CLng(milliseconds) * TimeSpan.TicksPerMillisecond)	Dim dateTime As New DateTime(1900, 1, 1)	dateTime += timeSpan__1	Dim offsetAmount As TimeSpan = TimeZone.CurrentTimeZone.GetUtcOffset(dateTime)	Dim networkDateTime As DateTime = (dateTime + offsetAmount)	Debug.Print(networkDateTime.ToString())	Return networkDateTimeEnd Function

 

Supra.

I havent seen a dedicated "for sale" area of the forums (if it exists, I apologize for being too clumsy to find it)

But if anyone is interested, I have the following essentially new items on ebay at the moment (or for sale) for significantly below regular price

Nwazet LCD Touch Screen Module (I have 2, Only selling 1)
Netduino Plus (I have a Go! and decided to use that)
Parallax Propeller Board of Education (8-core super dev board in a BOE form factor)

I will also note that I am including random goodies with each thing.

If posts of this kind are frowned upon, or need to be moved elsewhere, please let me know.

-Mike

Yeah! I was considering going to sell mine too. Everything for $2 including Go and Nwazet LCD and ShieldBase and some other accessories too

I just got my NP2! thanks for making such an awesome update!

I'm not able to get the I2C to work with my ADXL345 connected to the new SC/SD connectors?

I'm running the following code:

Byte[] _data = new byte[1] { 0 };

I2CDevice adxl345 = new I2CDevice(new I2CDevice.Configuration(0x53, 400));
I2CDevice.I2CWriteTransaction write = I2CDevice.CreateWriteTransaction(new Byte[] { 0x00 });
I2CDevice.I2CReadTransaction read = I2CDevice.CreateReadTransaction(_data);
I2CDevice.I2CTransaction[] actions = new I2CDevice.I2CTransaction[] { write, read };
adxl345.Execute(actions, 1000);
Debug.Print(_data[0].ToString());

I'm running the same code on my NP1 connecting to A4/A5 pins and the device is working but not on the NP2.

HELP PLEASE!

tutorial

Mylink

Shipping to Canada for $2.50......Done and Done!

First time arrived 2 days and last time arrived 15 days. I paid for Can$2.50

There is one big problem is Nwazet LCD

@stefan
it is ok with this?
InterruptPort button = new InterruptPort(Pins.Button,false, Port.ResistorMode.Disabled, Port.InterruptMode.InterruptEdgeBoth);

Supra, and ruin the nice shiny black acrylic plates?! I guess if you wanted to you could add your own Dymo labels after the fact. To each his own I guess

Steve

HHHMMMnnn That cost me around US$250 + $$$$(Dymo labels) total around $US300

Since I got Shield base 1 mnth ago, but haven't play around yet. On breadboard, I have common cathode connected to Power GND and 330 ohms with anode's led connected to digital i/o pin 4 of shield base.
My question, how do i write code to shield base digital i/o pin 4?

Output leds = new output(pins_gpio_pin_5,false)

<== I'm not sure if this write to shield base

Shield Base connected to sck5 of NGo..

Thank.

How did u connected 8x8 dotmatrix to GoBus? Can i do 8x32

Did u try this link?
what_to do


Mine is working already and had no pb .

U better c him(gutworks)

Hi supra,


Download the application in Stefan's link and run it on your Netduino Go.
http://forums.netdui...e-v4201-beta-1/

This will update your Shield Base to 4.2.0.1.

Chris

That is not the link I'm looking for.

But i found the link i'm looking

@stefan

That is wrong forum u posted on link

@Chris:

I can't find it on netduino go forums that shown u how to upgrading shield base. I lost it 2 days ago.

I just got my shield base 3 days ago.

@chris

Y do u want to build RS232? We already have USB 3.0 on market.
Mostly pc, laptop and ipad doesn't comes with RS232.

@ChrisU said , With Shield Base, we also introduced the GoBus Virtual I/O concept. With GoBus 1.5, we're performance-optimizing that same Virtual I/O and bringing it to all GoBus modules.

So i ordered last tuesday. My item will be arriving today. Do i have to get new shield base v1 .5?

Btw, I was reading gobus protocol specification. Thank