Cerb40: MF4.3 Pins Mystery initialization

ChristianJack · October 30, 2014, 8:56am

Hello
I use for more months Cerb40 with MF4.2 and GHI SDK 2014-R1 without problem for Analog and Digital inputs, all run very well.
My MF4.2 code is here:

     m_pinADC0 = new AnalogInput(Cpu.AnalogChannel.ANALOG_3);  // Pin PC0
m_pinADC1 = new AnalogInput(Cpu.AnalogChannel.ANALOG_4);  // Pin PC1
m_pinADC2 = new AnalogInput(Cpu.AnalogChannel.ANALOG_6);  // Pin PC2
m_pinADC3 = new AnalogInput(Cpu.AnalogChannel.ANALOG_7);  // Pin PC3
m_pinIN0 = new InputPort(GHI.Hardware.FEZCerb.Pin.PA0, true, Port.ResistorMode.Disabled);  // Pin PA0
m_pinIN1 = new InputPort(GHI.Hardware.FEZCerb.Pin.PA1, true, Port.ResistorMode.Disabled);  // Pin PA1
m_pinIN2 = new InputPort(GHI.Hardware.FEZCerb.Pin.PA2, true, Port.ResistorMode.Disabled);  // Pin PA2
m_pinIN3 = new InputPort(GHI.Hardware.FEZCerb.Pin.PA3, true, Port.ResistorMode.Disabled);  // Pin PA3
m_pinIN4 = new InputPort(GHI.Hardware.FEZCerb.Pin.PB6, true, Port.ResistorMode.Disabled);  // Pin PB6
m_pinIN5 = new InputPort(GHI.Hardware.FEZCerb.Pin.PB7, true, Port.ResistorMode.Disabled);  // Pin PB7
m_pinIN6 = new InputPort(GHI.Hardware.FEZCerb.Pin.PB8, true, Port.ResistorMode.Disabled);  // Pin PB8
m_pinIN7 = new InputPort(GHI.Hardware.FEZCerb.Pin.PC12, true, Port.ResistorMode.Disabled);  // Pin PC12

Now I have migrate on MF4.3 and GHI SDK 2014-R5.
I have just adapted my code with new GHI namespaces.
Here my MF4.3 code:

m_pinADC0 = new AnalogInput(Cpu.AnalogChannel.ANALOG_3);  // Pin PC0
m_pinADC1 = new AnalogInput(Cpu.AnalogChannel.ANALOG_4);  // Pin PC1
m_pinADC2 = new AnalogInput(Cpu.AnalogChannel.ANALOG_6);  // Pin PC2
m_pinADC3 = new AnalogInput(Cpu.AnalogChannel.ANALOG_7);  // Pin PC3
// New syntax for MF4.3 and GHI SDK 2014-R5
m_pinIN0 = new InputPort(GHI.Pins.Generic.GetPin('A', 0), true, Port.ResistorMode.Disabled);  // Pin PA0
m_pinIN1 = new InputPort(GHI.Pins.Generic.GetPin('A', 1), true, Port.ResistorMode.Disabled);  // Pin PA1
m_pinIN2 = new InputPort(GHI.Pins.Generic.GetPin('A', 2), true, Port.ResistorMode.Disabled);  // Pin PA2
m_pinIN3 = new InputPort(GHI.Pins.Generic.GetPin('A', 3), true, Port.ResistorMode.Disabled);  // Pin PA3
m_pinIN4 = new InputPort(GHI.Pins.Generic.GetPin('B', 6), true, Port.ResistorMode.Disabled);  // Pin PB6
m_pinIN5 = new InputPort(GHI.Pins.Generic.GetPin('B', 7), true, Port.ResistorMode.Disabled);  // Pin PB7
m_pinIN6 = new InputPort(GHI.Pins.Generic.GetPin('B', 8), true, Port.ResistorMode.Disabled);  // Pin PB8
m_pinIN7 = new InputPort(GHI.Pins.Generic.GetPin('C',12), true, Port.ResistorMode.Disabled);  // Pin PC12

At the execution, I have an exception ‘System.InvalidOperationException’ in Microsoft.SPOT.Hardware.dll" for the lines:
m_pinADC2 = new AnalogInput(Cpu.AnalogChannel.ANALOG_6); // Pin PC2
and
m_pinIN2 = new InputPort(GHI.Pins.Generic.GetPin(‘A’, 2), true, Port.ResistorMode.Disabled); // Pin PA2
All other lines are corrects.
I do not understand why I have theses errors.
Reference : https://www.ghielectronics.com/docs/44/fez-cerb40-developer

John_Brochue · October 30, 2014, 9:41am

@ ChristianJack - I was not able to reproduce that issue. All of those inputs were created fine and I was able to read from two problem ones you mentioned. Is there any other code in your project?

ChristianJack · October 30, 2014, 10:24am

@ John - Here my initialization code, there is no special code - I will update another Cerb40 and try with it.

using System;
using System.Collections;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Presentation;
using Microsoft.SPOT.Presentation.Controls;
using Microsoft.SPOT.Presentation.Media;
using Microsoft.SPOT.Touch;
using System.IO.Ports;
using System.Text;
using Gadgeteer.Networking;
using GT = Gadgeteer;
using GTM = Gadgeteer.Modules;
using Microsoft.SPOT.Hardware;
using GHI.Pins;

namespace Cerb40Scope
{
    public partial class Program
    {
        /// <summary>Serial port to communicate with the PC</summary>
        private SerialPort m_serialPort;

        /// <summary>Analogic inputs ports</summary>
        private AnalogInput m_pinADC0;  
        private AnalogInput m_pinADC1;
        private AnalogInput m_pinADC2;
        private AnalogInput m_pinADC3;

        /// <summary>Digital inputs ports</summary>
        private InputPort m_pinIN0;
        private InputPort m_pinIN1;
        private InputPort m_pinIN2;
        private InputPort m_pinIN3;
        private InputPort m_pinIN4;
        private InputPort m_pinIN5;
        private InputPort m_pinIN6;
        private InputPort m_pinIN7;

        // This method is run when the mainboard is powered up or reset.   
        void ProgramStarted()
        {
            m_pinADC0 = new AnalogInput(Cpu.AnalogChannel.ANALOG_3);  // Pin PC0
            m_pinADC1 = new AnalogInput(Cpu.AnalogChannel.ANALOG_4);  // Pin PC1
            m_pinADC2 = new AnalogInput(Cpu.AnalogChannel.ANALOG_6);  // Pin PC2  problem
            m_pinADC3 = new AnalogInput(Cpu.AnalogChannel.ANALOG_7);  // Pin PC3
  
            // New syntax for MF4.3 SDK 2014-R4
            m_pinIN0 = new InputPort(GHI.Pins.Generic.GetPin('A', 0), true, Port.ResistorMode.Disabled);  // Pin PA0
            m_pinIN1 = new InputPort(GHI.Pins.Generic.GetPin('A', 1), true, Port.ResistorMode.Disabled);  // Pin PA1
            m_pinIN2 = new InputPort(GHI.Pins.Generic.GetPin('A', 2), true, Port.ResistorMode.Disabled);  // Pin PA2 problem
            m_pinIN3 = new InputPort(GHI.Pins.Generic.GetPin('A', 3), true, Port.ResistorMode.Disabled);  // Pin PA3
            m_pinIN4 = new InputPort(GHI.Pins.Generic.GetPin('B', 6), true, Port.ResistorMode.Disabled);  // Pin PB6
            m_pinIN5 = new InputPort(GHI.Pins.Generic.GetPin('B', 7), true, Port.ResistorMode.Disabled);  // Pin PB7
            m_pinIN6 = new InputPort(GHI.Pins.Generic.GetPin('B', 8), true, Port.ResistorMode.Disabled);  // Pin PB8
            m_pinIN7 = new InputPort(GHI.Pins.Generic.GetPin('C',12), true, Port.ResistorMode.Disabled);  // Pin PC12
            // Remark : PB5 is high by default

            m_serialPort = new SerialPort("COM3", 57600);
            m_serialPort.DataReceived += new SerialDataReceivedEventHandler(On_Serial_DataReceived);
            m_serialPort.Open();
        }

John_Brochue · October 30, 2014, 10:37am

@ ChristianJack - It looks like you are using Gadgeteer. What mainboard are you using? The Cerb40 is not a Gadgeteer mainboard.

ChristianJack · October 30, 2014, 10:38am

@ John - I have updated a second Cerb40 to GHI SDK 2014-R5 (Loader and Firmware).
I have the same problem on the initialization of PC2 pin as Analog input and PA2 pin as digital input.

Une exception non gérée du type ‘System.InvalidOperationException’ s’est produite dans Microsoft.SPOT.Hardware.dll

John_Brochue · October 30, 2014, 10:42am

@ ChristianJack - Do you have anything connected to any pins on the Cerb40? I’ve tried a second one and still have not been able to reproduce the issue.

ChristianJack · October 30, 2014, 11:01am

@ John - I have no connection on the Cerb40.
I have made a breakboard to update the Cerb40 with only the supply (regulator 3,3v from external supply 9v), reset button and loader switch.

I have used this breakboard previously to update more times the Cerb40.

I use a new computer with Windows7 SP1 and VS2012 Premium French. MF4.3 and SDK 2014-R5.
Previously I use XP computer with VS2010 Premium French, MF4.2 and SDK 2014-R1.
I have opened my running MF4.2 project under VS2012 and updated to MF4.3 (change GHI namespaces and reference to MF4.3) and run debug to test.

My Cerb40 are version 1 not 2.

ChristianJack · October 30, 2014, 11:31am

@ John - I have make a new project MF4.3 from scratch on VS2012, add references and my lines of code. I have the same initialization errors for PC2 and PA2.

I have downgraded one of my Cerb40 to MF4.2 and SDK 2014-R1
Loader : 4.2.6.1
Firmware : 4.2.6.2

With my Cerb40 on my breakboard, I have launched my MF4.2 software.
All the pins initialization are corrects, no initialization errors for pins PC2 and PA2. I retrieve the previous state.

The problem comes with the migration to MF4.3

John_Brochue · October 31, 2014, 8:41am

@ ChristianJack - I am also using a Cerb40, not Cerb40 II. I tried again and it still worked. Can you try this in a non Gadgeteer project? The Cerb40 is not a Gadgeteer mainboard.

ChristianJack · October 31, 2014, 9:47am

@ John - I made a new MF4.3 project (Not a Gadgeteer project) and now the pins initialization are OK.

Last year, with MF4.2, I have made 3 Gadgeteer projects for the Cerb40 and all my programs run very well.
It was by chance and luck
Thank you very much John for yor help.

John_Brochue · October 31, 2014, 10:30am

@ ChristianJack - Happy to help, glad you got it working.