Can't figure out how to keep the touch calibration routine from running for the Windows Embedded Compact 7 workspace/osdesign iMX51_EVK_Mobility. For other iMX workspaces (MX28 and MX31) the platform.reg file at C:\WINCE700\platform\<platform name>\FILES can be edited and the touchc.exe launch can be commented out. This launch statement does not exist for the iMX51_EVK platform in its platform.reg file I've done a search on all WINCE700 files and not been able to find it in any other file either.
Was able to get this working myself. Found that the touch calibration utility is run as part of the welcome app. I think the welcome app is welcome.exe. Unfortunately, I did not find this filename searching all of the WINCE700 files. I expected it to be part of a Launch statement in a registry file. Anyway, I copied the following section from the IMX313DS platform's registry file (stored at C:\WINCE700\platform\IMX313DS\FILES\platform.reg) to the iMX51 EVK platform registry file (stored at C:\WINCE700\platform\IMX51_EVK\FILES\platform.reg).
"CalibrationData"="507,507 224,782 221,235 798,233 802,790"
; Welcome.exe: Disable tutorial and calibration pages because we already
; have the necessary calibration data.
; Touch calibration (0x02), Stylus (0x04), Popup menu (0x08),
; Timezone (0x10), Complete (0x20)
ENDIF ; BSP_PRECAL
Placed the above section of code in the iMX51 EVK's platform.reg file just before the following section of code:
; For double-tap default setting
ENDIF BSP_NOTOUCH !
I came up with the CalibrationData values by doing the following:
-1- Booted up OS image with the touch calibration utility on so I could calibrate the TFT Display.
-2- After ActiveSync came up, I connected to the EVK using the remote registry tool in VS 2008 (Tools --> Remote Tools --> Registry Editor).
-3- Went to the HARDWARE --> TOUCH section of the registry to see the calibration data.
-4- Copied down the data and then added it to the BSP_PRECAL section of code above.
-5- Rebuilt the OS (via a sysgen).
-6- Reloaded NK.bin onto my SD Card.
-7- Rebooted EVK. WEC7 OS image booted without the touchscreen calibration routine executing. Tested the calibration data by selecting a few items on the WEC7 desktop. This verified that my calibration data stored in platform.reg was valid.