Force Touch calibration after first boot.

Is there any way to force touch screen calibration only the first boot
after flash?

Thank you,
Errol

Use USB keyboard.

Sorry, i wasn't clear. I want to automate calibration. The end user must be
forced to do calibration after flash. I can't tell my end user that he must
plug in a mouse to calibrate first.

Thank you,
Errol

I made following mecanism : 

I written an application that is launched when Windows CE starts up.
This application reads a key in registry.

If the key is not present, it deduces that it is the first start of the
board after the flash.
In this case, I force calibration (call of the TouchCalibrate() function).
After that, the application creates the key in registry.

If the key is present, then it's not the first start after flash.

domdom

This was what i had in mind also. Maybe it should be built into the touch
driver? :-)

Thank you,
Errol

Yes, it could be done into the touch driver... ;o)
I just adapted to the mini2440 the solution I described in my previous
post.
You just have to create a subproject (console application, I called it
TouchCalibrateAtFirstStart), copy the following source code in the main
source.
Don't forget to add following lines in .reg file of the subproject : 
[HKEY_LOCAL_MACHINE\Init]
  "Depend80"=hex:14,00,1E,00
  "Launch80"="\\windows\\TouchCalibrateAtFirstStart.exe"
domodom



// TouchCalibrateAtFirstStart.cpp : Defines the entry point for the console
application.
//

// This application launch touch calibration if the registry has been
erased.
// To detect the deletion of the registry, the application seeks a key in
registry. 
// If the key is not found, he deduces that the registry has been cleared
and launch touch calibration.
// Once the calibration sequence, the key is created in the registry.
// If the key is found, it search a subkey and verify its value. If subkey
is not found or value is different of '1', 
// touch calibration is launched

#include "stdafx.h"
#include <windows.h>
#include <pwinuser.h>

#define FIRST_START_KEY        L"SOFTWARE\\Domodom\\FirstStart"
#define FIRST_START_SUBKEY_NAME    L"Active"


// This function is called at each first start after flash (when registry
has been erased)
void fct1erDemarrage(HKEY myKey) {
  long retour;
  DWORD dwValue = 0;
  DWORD dwSize = sizeof(dwValue);

  TouchCalibrate() ;
  // ajout de la clé
  retour = RegCreateKeyEx(HKEY_LOCAL_MACHINE, FIRST_START_KEY, 
    0, NULL, 0, 0, NULL, &myKey, NULL);
  if (retour == ERROR_SUCCESS ) {
    dwValue = 1;
    retour = RegSetValueEx(myKey, FIRST_START_SUBKEY_NAME, 0, REG_DWORD,
(BYTE*)&dwValue,  sizeof(dwSize));
  }
}




int _tmain(int argc, TCHAR *argv[], TCHAR *envp[])
{
  boolean ret;
  long retour;
  HKEY myKey;     
  DWORD dwValue = 0;
  DWORD dwSize = sizeof(dwValue);

  // S'agit-t-il d'un premier démarrage après un effacement de la registry
??
  retour = RegOpenKeyEx(HKEY_LOCAL_MACHINE, FIRST_START_KEY, 0, 0, &myKey);
  if (retour != ERROR_SUCCESS) { 
    // key not found -> it's the first start after flash
    fct1erDemarrage(myKey);
  } else {
    WCHAR valueName[500];
    DWORD sizeValueName, type, sizeData, index;
    BYTE data[1000];
    sizeValueName = 500;
    sizeData = 500;
    // we found the key, we verify the value of FIRST_START_SUBKEY_NAME
subkey
    ret = 0;
    index = 0;
    while(ret == 0) {
      if (ret == 0) {
        ret = RegEnumValue(myKey, index, valueName, &sizeValueName, NULL,
&type, data, &sizeData); 
        if (ret == 0) {
          if (type == REG_DWORD) {  // if subkey type is DWORD
            if (!wcscmp(FIRST_START_SUBKEY_NAME, valueName)) {  // if subkey
name
== FIRST_START_SUBKEY_NAME
              // subkey found, we must verify its value
              if (data[0] != 1) {
                // value != 1 -> first start
                fct1erDemarrage(myKey);
              } else {
                break;  // value == 1 -> not the first start
              }
            }
          }
        } else {
          // subkey not found -> first start
          fct1erDemarrage(myKey);
          break;
        }
        sizeValueName = 1000;
        sizeData = 1000;
        index++;
      }    
    }
  }

  return 0;
}

Hi, domdom or anyone

Thank for your guid, I following your source code but I don't know the
function "TouchCalibrate()" for use in fct1erDemarrage function.

Can you give the detail or guid about TouchCalibrate() function me?
,it essential for me to try out this your example.


Thank you for advance.

TouchCalibrate() is a Windows CE function, you can find its definition in
C:\WINCE600\PUBLIC\COMMON\OAK\INC\pwinuser.h.
You need to link your application with coreddl.lib.
domdom

Lol. I included this code in the Touch Driver, calling it from the
TSP_PowerON() function. From debug output i can see that it gets called,
but i guess the system isn't booted far enough to display the
TouchCalibrate screen... :(

Now playing with nboot. will come back to this...

Thanks,
Errol

Good idea !
Maybe you could create a thread that waits 1 or 2 seconds before to execute
my code, then ends itself ?
I'm not sure, but I wonder if TSP_PowerON() is not called by power
management...
But in DdsiTouchPanelEnable() that seems to be called just 1 time at the
beginning, you could create the thread I just described...
I don't have time to test for the moment, I need to finish my SPI driver...
domdom

Will look into it. But i first want to get power management working.

Having trouble with the power button driver...

Here is the integrated touch driver + auto calibration. No more mouse
needed to start calibration. :-)

1. Replace your touch driver with this one. 
2. Delete the default calibration data in the BSP.

The calibration data is in:
Solution 'Mini2440'
\Mini2440
\C:/WINCE600
\PLATFORM
\Mini2440
\Parameter Files
\platform.reg

In the registry explorer go to HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\TOUCH
and delete "CallibrationData". This data is for the 3.5" screen, i
assume...

Thanks,
Errol

Sorry, that drive was still a bit messy. Cleaned up now...

Thanks,
Errol

Well done !!
Thanks you
domdom

Works here also great.
Thanks for sharing!

Hello.

I am an student from Spain and i need calibrate the touch screen at first
start. I have the friendly arm with the screen A70 and I am doing 

I follow the topic, but i do not the steps, because the Visual Studio works
more than 2 hours and continued compiling the OS, and normally, the visual
studio does the compiling in 15 minutes. 

First, i replace the original file "s3c2440a_touch.ccp"  for the second 
file "s3c2440a_touch.ccp" (21.29KB).

And second, i delete all the line that "CallibrationData".... in the file
"platform.reg".

So I can not compiling the OS.

Could anyone helps me?

Thanks