Digitax Force One MDT, Technical Manual

Page: 51 / 56

The information contained here are property of DIGITAX Automotive Electronics Italy, and extremely confidential. Any disclosure, copying, distribution to third
party is strictly prohibited.
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6. AITP (Light Dimmer)
This application shows how to use AITP to interact with the light dimmer. You can change display
brightness, retrieve light intensity, activate the automatic brightness regulation, etc…
Sample code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace Digitax.Sample.Dimmer
{
//simple application to interact with the light dimmer
public partial class DiimerSample : Form
{
//aitp instance
Aitp.Wrapper41. AitpCore _aitp = new Aitp.Wrapper41. AitpCore ();
byte _lightInt = 0x00;
byte _dimmer = 0x00;
byte [] _dimmTable = new byte [8];
byte _dimVal = ( byte )20;
public DiimerSample()
{
InitializeComponent();
this .C= new CancelEventHandler (DiimerSample_Closing);
//init aitp in MDT/MCU "COM4:" 19200 on ForceOne "COM3:" 38400
_aitp.AITPInit( "COM3:" , 38400);
_aitp.EvAITPDimmerValueAndTableT= new
Aitp.Wrapper41. AitpCore . delAITPActivateDimmerValueAndTableTrigger (_aitp_EvAITPDimmerValueAndTableTrigger);
_aitp.EvAITPLightIntensityT= new
Aitp.Wrapper41. AitpCore . delAITPActivateLightIntensityTrigger (_aitp_EvAITPLightIntensityTrigger);
//init light dimmer
_aitp.AITPInitLightDimmer();
tbDimVal.Text = _dimVal.ToString();
_aitp.AITPSetDimmerValue(_dimVal);
_aitp.AITPAskLightIntensity();
_aitp.AITPAskDimmerValueAndTable();
}
void _aitp_EvAITPLightIntensityTrigger( byte LightIntensity, uint lparam)
{
_lightInt = LightIntensity;
UpdForm();
}
void _aitp_EvAITPDimmerValueAndTableTrigger( byte DimmerValue, byte [] DimmerTable, uint lparam)
{
_dimmer = DimmerValue;
_dimmTable = DimmerTable;
UpdForm();
}
private delegate void delUpdForm ();
private void UpdForm()
{
if (InvokeRequired)
{
this .BeginInvoke( new delUpdForm (UpdForm));
return ;
}
//update text
tbDimmer.Text = _dimmer.ToString();
tbLight.Text = _lightInt.ToString();
StringBuilder sb = new StringBuilder ();
foreach ( byte val in _dimmTable)
{
sb.Append(val);
sb.Append(
" " );
}
tbTable.Text = sb.ToString();
}
private void btMinus_Click( object sender, EventArgs e)
{
//decrease light intesity
if (_dimVal > 1 && !cbAuto.Checked)
{
_dimVal--;
tbDimVal.Text = _dimVal.ToString();
_aitp.AITPSetDimmerValue(_dimVal);
}
}
private void btPlus_Click( object sender, EventArgs e)
{