hello Markus, not new to the problem with the xml along with mf Net 4.2? see you soon Gnomathibus,

hello, here is the screenshot just: one step BEFORE jumping to Dispose ()

Here is a screenshot of the error in debug mode step by step, if I use the NET MF 4.2, it can be is the problem? see you soon and thank you again

hello, great reactivity! I just tried the test code "multixml" but I get the following error in the debuger when I call to the function / multixml: customer connected Final byte count: 315 Request URL = multixml Start checking Requests A first chance exception of type 'System.Exception' Occurred in NeonMika.XML.dll WAS thrown exception: System.Exception

ok my result is : <Response> <value_26>0</value_26> <value_10>0</value_10> <value_5>0</value_5> </Response> but I would have <Response> <id>26</id> <value>0</value> </Response> <Response> <id>10</id> <value>0</value> </Response> <Response> <id>26</id> <value>0</value> </Response>

thank you very much for your answer it works, but with a Multidimensional Array how to?

Hello, Neon Mika.Webserver is really good if I try to send the entire contents of an array to xml, is this possible?

Thank you very much for your help Guido, but I solved my problem in the afternoon if I had not put pull-up resistor to the SDA and SCL ports on my arduino while I did not need to Max521 one, here is the wiring diagram that works impeccably well now and for me and my code snippet

using System;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.NetduinoPlus;
using NetduinoPlusTesting;


namespace Maxdac
{
    public class Maxdacdevice 
    {

        
        private I2CDevice.Configuration _slaveConfig;
        private const int TransactionTimeout = 3000; // ms
        private const byte ClockRateKHz = 100;
        public byte Address { get; private set; }
       
       
         

        public Maxdacdevice(byte address)
        {
            Address = address;
            _slaveConfig = new I2CDevice.Configuration(address, ClockRateKHz);
        
        }

        public void write(byte port, byte value)
        {
        
            I2CBus.GetInstance().Write(_slaveConfig, new byte[] { (byte)(0x07 & port), value }, TransactionTimeout);
        
        }

        public void reset()
        {
        
            I2CBus.GetInstance().Write(_slaveConfig, new byte[] { (byte)(0x10) }, TransactionTimeout);
      
        }

        public void shutDown(Boolean shutdown)
        {
            if (shutdown == true)
            {

                I2CBus.GetInstance().Write(_slaveConfig, new byte[] { (byte)(0x08), (byte)(0x00) }, TransactionTimeout);
            }
            else
            {

                I2CBus.GetInstance().Write(_slaveConfig, new byte[] { (byte)(0x00), (byte)(0x00) }, TransactionTimeout);

            }
        }


    }
}

and the progam

using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.NetduinoPlus;
using Maxdac;
using NetduinoPlusTesting;

namespace NetduinoPlusApplication5
{
    public class Program
    {
       
        public static void Main()
        {
            // write your code here
            OutputPort led = new OutputPort(Pins.ONBOARD_LED, false);

            Maxdacdevice Max1 = new Maxdacdevice(0x2A);
            Maxdacdevice Max2 = new Maxdacdevice(0x29);

            Max1.reset();
            Max2.reset();
            Thread.Sleep(500);

            //Set FULLPOWER to MAX521 Adress(0x2A) DAC04  
            Max1.write(4,255);
            //Set FULLPOWER to MAX521 Adress(0x29) DAC01
            Max2.write(1, 255);
            Thread.Sleep(5000);

            //resets all registers to off
            Max1.reset();
            Max2.reset();
            Thread.Sleep(5000);


            //shuts down the DAC into power save mode
            Max1.shutDown(true);
            Max2.shutDown(true);
            Thread.Sleep(5000);

                       
            //wakes the DAC. Any write command will also wake the DAC from power save mode
            Max1.shutDown(false);
            Max2.shutDown(false);
            Thread.Sleep(5000);

           //Set HALFPOWER to MAX521 Adress(0x2A) DAC04  
            Max1.write(4, 127);
           //Set HALFPOWER to MAX521 Adress(0x2A) DAC01  
            Max2.write(1, 127);
            Thread.Sleep(5000);

            

            while (true)
            {
                led.Write(true);
                Thread.Sleep(250);
                led.Write(false);
                Thread.Sleep(250);
            }


        }

    }
}

I had already tried but unfortunately it does not work, I have the following error message: throw new Exception ("Could not write to device.");

thank you very much for the interest in my problem Guido, effectively addresses are possible for the MAX521 0x28, 0x29, 0x2A, 0x2B


I in my promgram instantiates as:

using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.NetduinoPlus;
using Maxdac;
using NetduinoPlusTesting;

namespace NetduinoPlusApplication5
{
    public class Program
    {
       
        public static void Main()
        {
            // write your code here
            OutputPort led = new OutputPort(Pins.ONBOARD_LED, false);

            Maxdacdevice Max = new Maxdacdevice(0x2A);
                    
            
            Max.write();

            while (true)
            {
                led.Write(true);
                Thread.Sleep(250);
                led.Write(false);
                Thread.Sleep(250);
            }


        }

    }
}

The first write statement writes zero to DAC7. Is this right?
What should the second write statement do?

I2CBus.GetInstance().Write(_slaveConfig, new byte[] { 0x07 , 0x00 }, TransactionTimeout);
I2CBus.GetInstance().Write(_slaveConfig, new byte[] { 0xFF }, TransactionTimeout);

As I said in my topic I used the existing Arduino library that works fine as an example for me is a 0x07 B00000111 "Bitwise"? , 0x00 DAC0 and 0xFF has a full power

here the example of the library in Arduino Cpp:

maxdac::maxdac(byte address) //address should be 7 bits
{
  Wire.begin();
  _address = address;
}

void maxdac::write(int port, int value) //port is 0-7 for MAX521 and 0-3 for MAX520
{
  Wire.beginTransmission(_address); //tell the device we are ready to begin transmitting
  Wire.send((B00000111 & port)); //use some BitWise "&" to combine the command to write to a port with the port you wish to write to
  Wire.send(value); //send the actual value to the port
  Wire.endTransmission(); //stop communication
}

thank you again !

Hello,

I want to use a MAX521 in I2C with my Netduino, I use the class I2CBus found on the forum, but I am having dificulties with the function to write a value to a regitre

here is my code:

using Microsoft.SPOT.Hardware;
using SecretLabs.NETMF.Hardware;
using SecretLabs.NETMF.Hardware.NetduinoPlus;
using NetduinoPlusTesting;


namespace Maxdac
{
    public class Maxdacdevice 
    {

        
        private I2CDevice.Configuration _slaveConfig;
        private const int TransactionTimeout = 3000; // ms
        private const byte ClockRateKHz = 100;
        public byte Address { get; private set; }
        
        
         

        public Maxdacdevice(byte address)
        {
            Address = address;
            _slaveConfig = new I2CDevice.Configuration(address, ClockRateKHz);
         
        }
        
       
        public void write()
        {

         //Send command write Full Power DAC0

            I2CBus.GetInstance().Write(_slaveConfig, new byte[] { 0x07 , 0x00 }, TransactionTimeout);
            I2CBus.GetInstance().Write(_slaveConfig, new byte[] { 0xFF }, TransactionTimeout);

        }

       


    }
}

in fact I try to do a translation of an existing library for Arduino, but since I'm a beginner it was not easy for me
The link from the site of the library MAX520 / 1 for Arduino
and the to linkthe documentation of the IC

Sorry for my poor English I use Google to translate if someone could help me it would be super cool!

thank you for the answer, my project is to control multiple DC controlled dimmer via ethernet, I need for that much that I shall convert PWM output to 0-10v with LM358

hello, I seek to extend the number PWM output, is this possible?