I have a GHI Spider main board, using VC# 2010 I connected:
usbClient = new GTM.GHIElectronics.UsbClientDP(1);
extender = new GTM.GHIElectronics.Extender(6);
display = new GTM.GHIElectronics.Display_T35(14, 13, 12, 10);
button = new GTM.GHIElectronics.Button(11);
SPI 2 is on socket 6, as mosi, miso, and sck.
Also, IO18, IO20, IO22, and IO10 are on socket 6.
In the SPI initialization, I specify Cpu.Pin.GPIO_Pin10. I assume this is IO10?
Typing Cpu.Pin. allows me to see the completions fo GPIO_Pin0 through GPIO_Pin15.
How do I access any of the other pins?
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 Gadgeteer.Networking;
using GT = Gadgeteer;
using GTM = Gadgeteer.Modules;
using Gadgeteer.Modules.GHIElectronics;
// for SPI
//using GHIElectronics.NETMF.Hardware;
using Microsoft.SPOT.Hardware;
namespace mySPI
{
public partial class Program
{
SPI.Configuration MyConfig = new SPI.Configuration(Cpu.Pin.GPIO_Pin1,
false, 0, 0, false, true, 1000, SPI.SPI_module.SPI1);
// This method is run when the mainboard is powered up or reset.
void ProgramStarted()
{
/*******************************************************************************************
Modules added in the Program.gadgeteer designer view are used by typing
their name followed by a period, e.g. button. or camera.
Many modules generate useful events. Type +=<tab><tab> to add a handler to an event, e.g.:
button.ButtonPressed +=<tab><tab>
If you want to do something periodically, use a GT.Timer and handle its Tick event, e.g.:
GT.Timer timer = new GT.Timer(1000); // every second (1000ms)
timer.Tick +=<tab><tab>
timer.Start();
*******************************************************************************************/
SPI MySPI = new SPI(MyConfig);
byte[] tx_data = new byte[10];
byte[] rx_data = new byte[10];
MySPI.WriteRead(tx_data, rx_data);
// Use Debug.Print to show messages in Visual Studio's "Output" window during debugging.
Debug.Print("Program Started");
}
}
}
Take a look at the music module drivers. It uses SPI.
I have SPI2 working with the extender board.
The GHI spider has 76 I/O pins.
I can see 16 pins using Cpu.Pin.GPIO_Pinxx where xx is 0 thru 15
Suppose I want to use 4 SPI devices, all connected to SPI2, socket 6. To do this, I
need to have IO18, IO20, IO22, and IO10 as CS pins.
How do I specify IO20 or IO22?
If you are using spider then you would get the pins through gadgeteer core. Many examples are in code.
If not using gadgeteer then see EMX DLL with pins
In case anyone is watching this
I am using sopcket 6 for SPI.
I have multiple devices connected.
I have 4 chip selects available. These are socket 6, pins 3, 4, 5, and, 6,
IO18, IO20, IO22, and IO10.
EMX.Pin.IO18, EMX.Pin.IO20, EMX.Pin.IO22, EMX.Pin.IO10, respectively.
You can use Cpu.Pin.GPIO_Pin10 for the last one.
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 Gadgeteer.Networking;
using GT = Gadgeteer;
using GTM = Gadgeteer.Modules;
using Gadgeteer.Modules.GHIElectronics;
using GHIElectronics.NETMF.Hardware;
// for SPI
//using GHIElectronics.NETMF.Hardware;
using Microsoft.SPOT.Hardware;
namespace mySPI
{
public partial class Program
{
// This method is run when the mainboard is powered up or reset.
void ProgramStarted()
{
/*******************************************************************************************
Modules added in the Program.gadgeteer designer view are used by typing
their name followed by a period, e.g. button. or camera.
Many modules generate useful events. Type +=<tab><tab> to add a handler to an event, e.g.:
button.ButtonPressed +=<tab><tab>
If you want to do something periodically, use a GT.Timer and handle its Tick event, e.g.:
GT.Timer timer = new GT.Timer(1000); // every second (1000ms)
timer.Tick +=<tab><tab>
timer.Start();
*******************************************************************************************/
button.ButtonPressed += new GTM.GHIElectronics.Button.ButtonEventHandler(button_ButtonPressed);
SPI.Configuration MyConfig = new SPI.Configuration(EMX.Pin.IO18,//Cpu.Pin.GPIO_Pin10, // CS pin
false, // CS active state
0, // CS setup time
0, // CS hold time
false, // SCK idle state
true, // SCK edge
4000, // clock rate. KHz
SPI.SPI_module.SPI2); // which spi module to use
SPI MySPI = new SPI(MyConfig);
byte[] tx_data = new byte[10];
byte[] rx_data = new byte[10];
for (byte idx=0; idx<10; idx++) tx_data[idx] = idx;
while (true)
{
MySPI.WriteRead(tx_data, rx_data);
Thread.Sleep(10);
}
// Use Debug.Print to show messages in Visual Studio's "Output" window during debugging.
//Debug.Print("Program Started");
}
void button_ButtonPressed(GTM.GHIElectronics.Button sender, GTM.GHIElectronics.Button.ButtonState state)
{
button.ToggleLED();
}
}
}