On the LPC54628 dev. board I am trying to combine LWIP with LVGL to create an app with graphics and Ethernet ability. I started with the LWIP demo and added the necessary code to implement the touch panel functions. The issue I am having is that the panel polling function "DEMO_ReadTouch(...)" is not being called. On the original LVLG demo the "DEMO_ReadTouch(...)" function gets called every 100 uS. The "DEMO_InitTouch(void)" function does send 3 bytes of data over the I2C lines so I know the hardware is working. Just above the "DEMO_ReadTouch(...)" function is the line /* Will be called by the library to read the touchpad */ but I don't know where the calling function is to see why it isn't firing.
Does MCUXpresso have a way to see where a function was called from?
