ST7796S and ESP32-S3-DevKitC-1-N-8R2 seems to cap my sprite maximum size?

[zachtos]

Using This screen from other issue . With the ESP32-S3-DevKitC-1-N-8R2 I have the LCD working, but I can not make a sprite that is full screen. No matter what size sprite I make, it will cap out at around 60% of the 320x480 pixel screen via SPI interface. I do not have the touch chip or SD card wired up, just the LCD pins. I can see the PSRAM enabled, and have the sprite.setAttribute(PSRAM_ENABLE, true);

I CAN see the entire screen when running a demo example with non sprite pushes, but the library seems to be force capping the size of my sprites, EVEN with PSRAM enabled. What am I doing wrong?!

PlatformIO w/ Visual Studio 1.88 Espressif 32 v6.6.0 bodmer/TFT_eSPI@^2.5.43 board = esp32-s3-devkitc-1 build_flags = -D ARDUINO_USB_CDC_ON_BOOT=1 -DBOARD_HAS_PSRAM //////// Total heap: 394892 Free heap: 370344 Total PSRAM: 2095087 Free PSRAM: 1941483 ///////////// in user setup.h I have #define ST7796_DRIVER in user select.h i have #include <User_Setups/Setup36_RPi_touch_ST7796.h>
in user_setup_ID36 I have to remove #define RPI_DISPLAY_TYPE or the screen will not boot

define TFT_MISO 37

define TFT_MOSI 35

define TFT_SCLK 36

define TFT_CS 10 // Chip select control pin

define TFT_DC 7 // Data Command control pin

define TFT_RST 6 // Reset pin (could connect to RST pin)

define TOUCH_CS 2 // Chip select pin (T_CS) of touch screen

tft.setRotation(1); //i've tried 0-3, not the issue It works but it's some kind of sprite issue. I have worked with smaller screens without PSRAM no problems. I love this library, but I'm currently stumped.

//from read user setup example TFT_eSPI ver = 2.5.43 Processor = ESP32 Frequency = 240MHz Transactions = Yes Interface = SPI Display driver = 7796 Display width = 320 Display height = 480

MOSI = GPIO 35 MISO = GPIO 37 SCK = GPIO 36 TFT_CS = GPIO 10 TFT_DC = GPIO 7 TFT_RST = GPIO 6 TOUCH_CS = GPIO 2

Font GLCD loaded Font 2 loaded Font 4 loaded Font 6 loaded Font 7 loaded Font 8 loaded Smooth font enabled

Display SPI frequency = 40.00 Touch SPI frequency = 2.50

[zachtos]

Solved my own issue. I guess I don't quite understand why, but when I set rotation to 1 for landscape, the Height and Width dimensions are now flipped for sprite creation. It's strange, I have to pretend it's oriented portrait when using pushSprite and create sprite. Is that supposed to be that confusing? Why not flip them when you set rotation for consistency?

[techniks]

Hmmm.. I thought for sure you would not be able to use gpio 35,36,37 when PSRAM is activated. I see that you are using these lines for MISO, MOSI, SCK and it works. Can you please verify that is the case. That opens additional possibilities for me! Thanks

[zachtos]

Hmmm.. I thought for sure you would not be able to use gpio 35,36,37 when PSRAM is activated. I see that you are using these lines for MISO, MOSI, SCK and it works. Can you please verify that is the case. That opens additional possibilities for me! Thanks There are two models of ESP32S3 with PSRAM. The ones with QUAD type don't use those pins, but the OCTAL ones do, I think those models have 16mB flash and/or larger PSRAM. I went a model down to avoid loss of those pins, so can confirm they still work.

[techniks]

Ahaaa! Now I see. I've been using the ESP32S3-N16 to gain the extra pins. Looks like a ESP32S3-N16R2 would allow the pins to be used AND get some PSRAM. Thank you for your reply! Perfect!