LPC3250 re-calibrate TS

(This message was transferred over from our old forum)
Posted August 14, 2015
By Todd DeBoer
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On 6/16/11 Alfonso asked, “I have received the LPC3250 LCD Touch Screen Development Kit, and the first time the callibration touchscreen function starts, but I calibrated it badly. The problem is that now I don’t know how to recall this function. I suppose that the system wrote the eeprom like the units is calibrated and for this reason this function now is disabled.”
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(Follow up post)

Answered:

There should be 2 ways to fix this.

First, you should be able to hold down on the screen when the app is about to boot (when it shows the uEZ title screen after the general LPC3250 booting screen).

Second, you can delete the files in /mnt/jffs2 to reset the calibration information. Then just restart.