I m using FT6236 capacitive touch screen controller with I2C3 inside STM32F407. All required Connections have been checked thoroughly. I have referred the reference code from all possible links available from internet. It was found that all available code online doesn't work correctly. It can only plot only few points but even those points are incorrect. Please! help me to debug the code since this code is giving incorrect answers from registers of FT6236.