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Shield Base Firmware (beta 3)


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#1 Chris Walker

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Posted 24 September 2012 - 10:35 PM

Version: Beta 3 (based on 4.2.0.1 NETMF firmware)

This update requires a Netduino Go running v4.2.0.1+ firmware.

In April, we launched the Shield Base to introduce GoBus Virtual I/O. With the release of the GoBus 1.5 specification, we've updated the Shield Base to GoBus 1.5.

This firmware uses the GoBus 1.5 UART transport, so it temporarily requires use of 4 GoPorts (1-4 or 5-8). We will remove this restriction later this season by moving to the fast GoBus 1.5 SPI transport.

This firmware includes the following updates:
1. GoBus 1.5 transport: error-correction with CRCs, frame acknowledgements, retries, etc.
2. InterruptPort support (pins D2-D13, although A0-A5 can be used by advanced users)
3. New ShieldBase.PWMChannels and ShieldBase.AnalogInputs enumerations (matching Netduino 4.2)

This firmware also includes the previous updates:
1. PWM no longer stops working 'randomly'
2. PWM scale now works properly

Known issues:
1. Pins D0/D1 are occupied by the NETMF debug channel. We'll free these up in an upcoming update.

NOTE: if you are using your Shield Base (with upgraded STM32F2 chip) as a standalone NETMF board, you'll want to continue using the production 4.2.0.0 NETMF firmware.

To upgrade your Shield Base:
1. Plug your Shield Base into GoPort 5 of your Netduino Go.
2. Deploy the attached updater app, and watch your Output window.
3. When prompted, press the Netduino Go's onboard button to start the flashing process.
4. While flashing your Shield Base, socket 5's LED will flash and the Output window will provide status.
5. When the Shield Base is completely updated, the white power LED will flash.

After the upgrade, simply deploy a new app to your Netduino Go mainboard. If you have trouble communicating with the shield base, power cycle your Netduino Go.

Please post in this thread if you have any troubles.

Thank you for beta testing the Shield Base,

Chris

P.S. We've discovered a quirk in the NETMF STM32 flash drivers which seems to intermittently affect deployment of really large apps like this one. If you run into troubles deploying this app (or another app immediately after this one), you can re-flash your mainboard. We're looking into it, and hope to contribute back any bug fixes to the NETMF core.

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#2 Chris Walker

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Posted 24 September 2012 - 10:42 PM

P.S. To update your current project using Shield Base: 1. Remove the NetduinoGo.ShieldBase.dll assembly reference from your current project. 2. Add the attached NetduinoGo.ShieldBase.dll assembly as a reference to your project. This update should be fully backwards compatible with your existing code. Chris P.P.S. Once Shield Base leaves beta, we'll include it in the official Netduino SDK. This assembly update procedure is only required during the beta.

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#3 Matt Isenhower

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Posted 24 September 2012 - 11:06 PM

If you have a Saleae Logic analyzer and want to analyze the protocol now being used on the Shield Base, be sure to grab the new GoBus 1.5 Protocol Analyzer Plugin too! :)
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Follow me on Twitter: @mattisenhower

#4 Chris Walker

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Posted 24 September 2012 - 11:17 PM

If you have a Saleae Logic analyzer and want to analyze the protocol now being used on the Shield Base, be sure to grab the new GoBus 1.5 Protocol Analyzer Plugin too! :)

I'd like to second that thought :) This is a pretty sweet analyzer that Matt has put together. Really cool.

I love this community. Thanks again Matt!

Chris

#5 Lunddahl

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Posted 25 September 2012 - 09:55 PM

To update your current project using Shield Base:

1. Remove the NetduinoGo.ShieldBase.dll assembly reference from your current project.
2. Add the attached NetduinoGo.ShieldBase.dll assembly as a reference to your project.


I copied the files into "C:\Program Files (x86)\Secret Labs\Netduino SDK\Assemblies\v4.2" overwriting what was there, now i seem to remember that Visual Studio copies the files referenced to "\ProjectFolder\bin\Debug", so i deleted that directory before rebuilding.

But no luck, i had to remove the reference to NetduinoGo.ShieldBase.dll and add it again.

After that, my ShieldBase.BlinkLed is deploying and running fine.

:-)

- Ulrik Lunddahl

#6 neslekkim

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Posted 25 September 2012 - 10:08 PM

If you do rebuild, or clean on the project, visualstudio should remove the files that was copied into the debug folder, so you should not need to muck around on your own there. I guess that run alone, did not detect that those referenced files was changed, and did not copy them again, that should normally work, but sometimes it kicks you in the nu**

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#7 jens

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Posted 04 October 2012 - 04:47 PM

I am having somewhat of a problem with my shield base after the update. I have a simple code flashing the power led on the Go when I push the button, which runs fine. But whenever I add:

private static NetduinoGo.ShieldBase GoShield = new NetduinoGo.ShieldBase(GoSockets.Socket5);

to the code I get a System.Exception in GoBusSerialTransport.dll. The shield base is on socket 5 and before upgrading, the shield base initialized without any problems. It seems the Go does connect to the shield, as the blue LED lights up, but it crashes shortly after. I am running the 4.2.0.1 firmware and the shield base flash completed successfully. The debugger output should be attached.

Any hints would be greatly appreciated.

Jens

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#8 neslekkim

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Posted 05 October 2012 - 02:44 PM

what happens if you do

private static NetduinoGo.ShieldBase sb;

public static void Main(){
  sb = new NetduinoGo.ShieldBase(GoSockets.Socket5);



}

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#9 QuantumPhysGuy

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Posted 05 October 2012 - 03:19 PM

I am having somewhat of a problem with my shield base after the update. I have a simple code flashing the power led on the Go when I push the button, which runs fine. But whenever I add:

private static NetduinoGo.ShieldBase GoShield = new NetduinoGo.ShieldBase(GoSockets.Socket5);

to the code I get a System.Exception in GoBusSerialTransport.dll. The shield base is on socket 5 and before upgrading, the shield base initialized without any problems. It seems the Go does connect to the shield, as the blue LED lights up, but it crashes shortly after. I am running the 4.2.0.1 firmware and the shield base flash completed successfully. The debugger output should be attached.

Any hints would be greatly appreciated.

Jens


I had a similar issue - make sure you are using the new ShieldBase.dll library.

#10 neslekkim

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Posted 05 October 2012 - 03:35 PM

what is the version for that dll?, in his log, this is written: Assembly: NetduinoGo.ShieldBase (0.2.0.0)

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#11 Chris Walker

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Posted 05 October 2012 - 04:02 PM

The latest NetduinoGo.ShieldBase.dll version is (0.2.0.0). Static constructors in NETMF can be initialized in a different order than we're used to on the desktop. I second neslekkim's recommendation about instantiating the object in code (so you know when it will be instantiated). Chris

#12 jens

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Posted 05 October 2012 - 05:41 PM

Neslekkim's suggestion worked, thanks for the help. Funny, haven't had that problem before, and the code seemed to work before the update. Anyway, problem solved, thank you for the quick reply.




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