9 replies to this topic

[cys]

I did finally manage to get pin 1 functioning for i/o. It does +/-6V. Adding a public const GPIO pin for PA28/DTXD in NetduinoMiniHardwareProvider.cs got it going, finally. However, I'm stuck using firmware 4.1 as my app is balking with 4.2. Since I haven't been able to get my hands on the 4.1 SDK source yet, I used the 4.2 SDK source to make the 4.1 library by removing "public static class AnalogChannels" and "public static class PWMChannels."

If you have a way of getting the 4.1 SDK source to me, please send me a pm and I'll send you my e-mail address; I only need the "SecretLabs.NETMF.Hardware.NetduinoMini" folder.

As far as processing the DTXD pin 1 signal into something useful, that was pretty easy -- three 10K resistors and one transistor. Pin 1 is now successfully controlling a solenoid (ie the processed pin 1 signal is feeding into a Darlington transistor/diode/cap setup).

[Arron Chapman]

I think that this will get you started.

[cys]

I'm still looking for the 4.1 SDK source, similar to the 4.2 SDK source available at http://www.netduino.com/downloads/. Several people have pointed me to codeplex but so far as I can ascertain that holds the firmware but not the SDK. Specifically, I'm looking for the 4.1 equivalent of the 4.2 source file with the name: "NetduinoMiniHardwareProvider.cs" excerpted below. I am continually hacking the 4.2 version to be backwards compatible so I can use Pin 1 under the 4.1 SDK. I'm thinking someone has the 4.1 version of this file. It would be cool if the 4.1 SDK source could be added to the downloads page. Thanks.

/* Copyright (C) 2010-2012 Secret Labs LLC *  * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at *  * http://www.apache.org/licenses/LICENSE-2.0 *  * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */using System;using System.IO.Ports;using Microsoft.SPOT.Hardware;namespace SecretLabs.NETMF.Hardware.NetduinoMini{    internal class NetduinoMiniHardwareProvider : HardwareProvider    {        static NetduinoMiniHardwareProvider()        {            Microsoft.SPOT.Hardware.HardwareProvider.Register(new NetduinoMiniHardwareProvider());        }        override public void GetSerialPins(string comPort, out Cpu.Pin rxPin, out Cpu.Pin txPin, out Cpu.Pin ctsPin, out Cpu.Pin rtsPin)        {            switch (comPort)            {                case "COM1":                    rxPin = Pins.GPIO_PIN_A_0;                    txPin = Pins.GPIO_PIN_A_1;                    ctsPin = Pins.GPIO_NONE;                    rtsPin = Pins.GPIO_NONE;                    break;                case "COM2":                    rxPin = Pins.GPIO_PIN_A_27;                    txPin = Pins.GPIO_PIN_A_28;                    ctsPin = Pins.GPIO_NONE;                    rtsPin = Pins.GPIO_NONE;                    break;                default:                    throw new NotSupportedException();            }        }        override public void GetI2CPins(out Cpu.Pin scl, out Cpu.Pin sda)        {            scl = Pins.GPIO_PIN_A_11;            sda = Pins.GPIO_PIN_A_10;        }        override public void GetSpiPins(SPI.SPI_module spi_mod, out Cpu.Pin msk, out Cpu.Pin miso, out Cpu.Pin mosi)        {            switch (spi_mod)            {                case SPI.SPI_module.SPI1:                    msk = Pins.GPIO_PIN_A_18;                    miso = Pins.GPIO_PIN_A_16;                    mosi = Pins.GPIO_PIN_A_17;                    break;                default:                    throw new NotSupportedException();            }        }    }    // Specifies identifiers for hardware I/O pins.    public static class Pins    {        internal const Cpu.Pin GPIO_PIN_A_0 = (Cpu.Pin)0; // PA0/RXD0        public const Cpu.Pin GPIO_PIN_12 = GPIO_PIN_A_0; // PA0/RXD0        //        internal const Cpu.Pin GPIO_PIN_A_1 = (Cpu.Pin)1; // PA1/TXD0        public const Cpu.Pin GPIO_PIN_11 = GPIO_PIN_A_1; // PA1/TXD0        //        internal const Cpu.Pin GPIO_PIN_A_10 = (Cpu.Pin)10; // PA10/TWD        public const Cpu.Pin GPIO_PIN_9 = GPIO_PIN_A_10; // PA10/TWD        //        internal const Cpu.Pin GPIO_PIN_A_11 = (Cpu.Pin)11; // PA11/TWCK        public const Cpu.Pin GPIO_PIN_10 = GPIO_PIN_A_11; // PA11/TWCK        //        internal const Cpu.Pin GPIO_PIN_A_12 = (Cpu.Pin)12; // PA12/SPI_NPCS0        public const Cpu.Pin GPIO_PIN_13 = GPIO_PIN_A_12; // PA12/SPI_NPCS0        //        internal const Cpu.Pin GPIO_PIN_A_16 = (Cpu.Pin)16; // PA16/SPI0_MISO        public const Cpu.Pin GPIO_PIN_15 = GPIO_PIN_A_16; // PA16/SPI0_MISO        //        internal const Cpu.Pin GPIO_PIN_A_17 = (Cpu.Pin)17; // PA17/SPI0_MOSI        public const Cpu.Pin GPIO_PIN_14 = GPIO_PIN_A_17; // PA17/SPI0_MOSI        //        internal const Cpu.Pin GPIO_PIN_A_18 = (Cpu.Pin)18; // PA18/SPI0_SPCK        public const Cpu.Pin GPIO_PIN_16 = GPIO_PIN_A_18; // PA18/SPI0_SPCK        //        internal const Cpu.Pin GPIO_PIN_A_27 = (Cpu.Pin)27; // PA27/DRXD/PCK3        //        internal const Cpu.Pin GPIO_PIN_A_28 = (Cpu.Pin)28; // PA28/DTXD        //        internal const Cpu.Pin GPIO_PIN_A_29 = (Cpu.Pin)29; // PA29/FIQ/SPI1_NPCS3 (DTR)        //        internal const Cpu.Pin GPIO_PIN_B_19 = (Cpu.Pin)51; // PB19/PWM0/TCLK1        public const Cpu.Pin GPIO_PIN_17 = GPIO_PIN_B_19; // PB19/PWM0/TCLK1        //        internal const Cpu.Pin GPIO_PIN_B_20 = (Cpu.Pin)52; // PB20/PWM1/PCK0        public const Cpu.Pin GPIO_PIN_18 = GPIO_PIN_B_20; // PB20/PWM1/PCK0        //        internal const Cpu.Pin GPIO_PIN_B_21 = (Cpu.Pin)53; // PB21/PWM2/PCK1        public const Cpu.Pin GPIO_PIN_19 = GPIO_PIN_B_21; // PB21/PWM2/PCK1        //        internal const Cpu.Pin GPIO_PIN_B_22 = (Cpu.Pin)54; // PB22/PWM3/PCK2        public const Cpu.Pin GPIO_PIN_20 = GPIO_PIN_B_22; // PB22/PWM3/PCK2        //        internal const Cpu.Pin GPIO_PIN_B_27 = (Cpu.Pin)59; // PB27/TIOA2/PWM0/AD0        public const Cpu.Pin GPIO_PIN_5 = GPIO_PIN_B_27; // PB27/TIOA2/PWM0/AD0        //        internal const Cpu.Pin GPIO_PIN_B_28 = (Cpu.Pin)60; // PB28/TIOB2/PWM1/AD1        public const Cpu.Pin GPIO_PIN_6 = GPIO_PIN_B_28; // PB28/TIOB2/PWM1/AD1        //        internal const Cpu.Pin GPIO_PIN_B_29 = (Cpu.Pin)61; // PB29/PCK1/PWM2/AD2        public const Cpu.Pin GPIO_PIN_7 = GPIO_PIN_B_29; // PB29/PCK1/PWM2/AD2        //        internal const Cpu.Pin GPIO_PIN_B_30 = (Cpu.Pin)62; // PB30/PCK2/PWM3/AD3        public const Cpu.Pin GPIO_PIN_8 = GPIO_PIN_B_30; // PB30/PCK2/PWM3/AD3        //        public const Cpu.Pin GPIO_NONE = Cpu.Pin.GPIO_NONE;    }    // Specifies identifiers for analog channels.    public static class AnalogChannels    {        public const Cpu.AnalogChannel ANALOG_PIN_5 = Cpu.AnalogChannel.ANALOG_0;        public const Cpu.AnalogChannel ANALOG_PIN_6 = Cpu.AnalogChannel.ANALOG_1;        public const Cpu.AnalogChannel ANALOG_PIN_7 = Cpu.AnalogChannel.ANALOG_2;        public const Cpu.AnalogChannel ANALOG_PIN_8 = Cpu.AnalogChannel.ANALOG_3;        public const Cpu.AnalogChannel ANALOG_NONE = Cpu.AnalogChannel.ANALOG_NONE;    }    // Specifies identifiers for pwm channels.    public static class PWMChannels    {        public const Cpu.PWMChannel PWM_PIN_17 = Cpu.PWMChannel.PWM_0;        public const Cpu.PWMChannel PWM_PIN_18 = Cpu.PWMChannel.PWM_1;        public const Cpu.PWMChannel PWM_PIN_19 = Cpu.PWMChannel.PWM_2;        public const Cpu.PWMChannel PWM_PIN_20 = Cpu.PWMChannel.PWM_3;        public const Cpu.PWMChannel PWM_NONE = Cpu.PWMChannel.PWM_NONE;    }    public static class SerialPorts    {        public const string COM1 = "COM1";        public const string COM2 = "COM2";    }    public static class BaudRates    {        public const BaudRate Baud2400 = BaudRate.Baudrate2400;        public const BaudRate Baud9600 = BaudRate.Baudrate9600;        public const BaudRate Baud19200 = BaudRate.Baudrate19200;        public const BaudRate Baud38400 = BaudRate.Baudrate38400;        public const BaudRate Baud57600 = BaudRate.Baudrate57600;        public const BaudRate Baud115200 = BaudRate.Baudrate115200;    }    public static class ResistorModes    {        public const Port.ResistorMode PullUp = Port.ResistorMode.PullUp;        public const Port.ResistorMode Disabled = Port.ResistorMode.Disabled;    }    public static class InterruptModes    {        public const Port.InterruptMode InterruptEdgeLow = Port.InterruptMode.InterruptEdgeLow;        public const Port.InterruptMode InterruptEdgeHigh = Port.InterruptMode.InterruptEdgeHigh;        public const Port.InterruptMode InterruptEdgeBoth = Port.InterruptMode.InterruptEdgeBoth;        public const Port.InterruptMode InterruptEdgeLevelHigh = Port.InterruptMode.InterruptEdgeLevelHigh;        public const Port.InterruptMode InterruptEdgeLevelLow = Port.InterruptMode.InterruptEdgeLevelLow;        public const Port.InterruptMode InterruptNone = Port.InterruptMode.InterruptNone;    }    public static class SPI_Devices    {        public const Microsoft.SPOT.Hardware.SPI.SPI_module SPI1 = Microsoft.SPOT.Hardware.SPI.SPI_module.SPI1;    }}

[Chris Walker]

Hi cys, Just FYI: I am now aware of any changes to the HardwareProvider for Netduino Mini between .NET MF 4.1 and .NET MF 4.2 other than version # of the assembly itself. Chris

[cys]

Thanks, Chris. I did have to remove the "[color=rgb(0,0,136);]public[/color] [color=rgb(0,0,136);]static[/color] [color=rgb(0,0,136);]class[/color] [color=rgb(102,0,102);]PWMChannels" [/color]and the[color=rgb(102,0,102);] "[/color][color=rgb(0,0,136);]public[/color] [color=rgb(0,0,136);]static[/color] [color=rgb(0,0,136);]class[/color] [color=rgb(102,0,102);]AnalogChannels" [/color]to get the 4.2 file to build under 4.1. I'm working a bit in the dark, and am currently having issues with getting serial up and going with a bluesmirf. Just trying to close up possible loose ends.  I guess I'll just have to embrace moving over to 4.2, but there's a lot going on with my project and so far the transition to 4.2 hasn't happened easily.

 

Chris

[hanzibal]

Interesting.... Getting +/-6V could be useful in some cases. Any idea of how much it can source? I would guess about half as much as any other regular pin since those are 3V3.

[cys]

Interesting.... Getting +/-6V could be useful in some cases. Any idea of how much it can source? I would guess about half as much as any other regular pin since those are 3V3.

 

No idea, really. I use it to control a transistor that in turn controls a solenoid.

[cys]

I finally found the 4.1 sdk source somewhere.

[hanzibal]

Sounds like you got it from a secret place ;-)

[cys]

Correct .