Mathias Karlgren matkarlg

## config.md

      
        
          
            
              
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                matkarlg
                / config.md
            
            
              Last active
              January 24, 2021 18:43
            
              
                XPT2046/ADS7846 Touchscreen Android AOSP Raspberry PI RPi
              
          
        
      
        
  
      
    CONFIG_TOUCHSCREEN_ADS7846=y in kernel config
Compile overlay and add: (maybe different per tablet, goodtft/LCD-show)
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900
Add ADS7846_Touchscreen.idc to /system/usr/idc/
ADS7846_Touchscreen.idc: