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Thread: ILI9341 and XPT2046 for Teensy Touchscreen 320x240 display

  1. #126
    Junior Member
    Join Date
    Jan 2019
    Posts
    4
    First off, thank you for following up. You're correct there is no evidence of any physical damage but I've been in electronics long enough to know ICs don't show damage often. Anyway, Wiring follows the documentation at PJRC site. VCC red, GND blk, CS TCS yel, RESET brn, DC org, SDI T_DIN grn, SCK pur, T_CLK grey, LED red, SDO T_DO blu, T_IRG org


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    I hope you see my error.

  2. #127
    Junior Member
    Join Date
    Jan 2019
    Posts
    4
    OK - Guess no one found an error. I discovered that the touch does work correctly after all but just not for Teensy 3.6. Soon as I put it on a Teensy 3.2 all example sketches starting working with problems. I am not sure why this is so but on person told me the CS pin pulse is so fast and short on the 3.6 he had to add a 47p cap to the pin to slow it down enough to work. I did not try this but it might offer why the 3.6 does not work while the 3.2 does.

    So I offer my findings and will stop banging my head against the wall with the 3.6! If someone has a code fix for the Teensy or other ideas to make it work I'd love to hear them.

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