TFT with 9bit SPI (no C/D), can it be used with Arduino?
i bought spi tft, in hope use esp8266 (wemos d1 mini).
https://www.aliexpress.com/item/tianma-2-8-inch-37p-spi-tft-lcd-module-ili9341-drive-ic-240-320-tm028hdz25-rgb/32267693877.html
i tried use adafruit_ili9341, (adafruit_ili9341-dev), got white screen.
there no c/d connection, , found link:
https://github.com/notro/fbtft/issues/342
which not arduino, suggests, devide uses 9bit spi (c/d 9th bit).
is there way use arduino ide , library? welcome!
https://www.aliexpress.com/item/tianma-2-8-inch-37p-spi-tft-lcd-module-ili9341-drive-ic-240-320-tm028hdz25-rgb/32267693877.html
i tried use adafruit_ili9341, (adafruit_ili9341-dev), got white screen.
there no c/d connection, , found link:
https://github.com/notro/fbtft/issues/342
which not arduino, suggests, devide uses 9bit spi (c/d 9th bit).
is there way use arduino ide , library? welcome!
utft has got drivers 8-bit spi , 9- bit spi. utft has no concept of hardware spi bus.
so slow 9-bits 8-bits.
note device requires 2.8v logic. i guess 3.3v logic due or wemos ok.
i have driven ili9481 9-bit bidirectional. i.e. cs, sda, sck pins.
i use avr 3.3v logic. bit-bash 1 bit, hardware spi 8-bit write, bit-bash 8-bit reads.
life simpler 9-bit hardware spi arm.
looking @ ali link, a regular 2.2", 2.4", 2.8" spi module cheaper , easier.
most have sd cage. some have xpt2046 touch controller. these have better delivery.
david.
so slow 9-bits 8-bits.
note device requires 2.8v logic. i guess 3.3v logic due or wemos ok.
i have driven ili9481 9-bit bidirectional. i.e. cs, sda, sck pins.
i use avr 3.3v logic. bit-bash 1 bit, hardware spi 8-bit write, bit-bash 8-bit reads.
life simpler 9-bit hardware spi arm.
looking @ ali link, a regular 2.2", 2.4", 2.8" spi module cheaper , easier.
most have sd cage. some have xpt2046 touch controller. these have better delivery.
david.
Arduino Forum > Using Arduino > Displays > TFT with 9bit SPI (no C/D), can it be used with Arduino?
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