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    T-Display S3: 8MB PSRAM

    Technical Discussion
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    • H
      h5n1xp last edited by

      The T-Display S3 technical information page states the board has 8MB of PSRAM, does anyone know how to address this?

      I want to set up a frambuffer for more complex graphics work.

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      • H
        h5n1xp last edited by

        Ok, Reading through the ESP32-S3R8 datasheet (Page 11), it seems the PSRAM is internal to the chip and is on GPIO 32~37... If I get time tomorrow I will experiment.

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        • H
          h5n1xp last edited by

          Found that the arduinoexpressif32 framework has some psram functions builtin:

          if psramFound() == true, then you can call ps_malloc(), ps_calloc(), and ps_realloc()... but apparently no ps_free(), ps_size(), or ps_avail()

          So it's possible and quite easy to allocate the psram of the T-Display S3, but annoyingly not find out how much there is, or to be able to free it if you don't need it anymore.

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