My fork: github.com/deividAlfa/ST7789-STM32 Uses UGUI, custom fonts, pictures, windows, huge performance gains!

Floyd-Fish / ST7789-STM32

using STM32's Hardware SPI to drive a ST7789 based IPS displayer

GNU General Public License v3.0

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My fork: github.com/deividAlfa/ST7789-STM32 Uses UGUI, custom fonts, pictures, windows, huge performance gains! #17

Open deividAlfa opened 2 years ago

deividAlfa commented 2 years ago

Given this repository seems dead, I forked and further enhanced it.

HUGE performance gains. Up to 13x faster in some drawing tasks.
Able to use DMA (Can be disabled) for even faster speeds.
Interfaced uGUI library, several modifcations for best performance.
You can easily add bitmaps and custom fonts...
Demos for STM32F103, STM32F411 and STM32F407.

https://github.com/deividAlfa/ST7789-STM32

vinothkannanagva commented 2 years ago

(page 260 /ST7789V2 datasheet sitronix) 9.2.1 RAMCTRL (B0h): RAM Control

can I increase refresh rate of LCD by doing changes in above registers ??

deividAlfa commented 2 years ago

Yes, but in FRCTRL1 (B3h), not in RAMCTRL (B0h). You can also tweak the porch timing in PORCTRL (B2h), lowering it to the minimum increases the refresh rate 7%. Check st7789.c, ST7789_Init, read the comments, eveeyth is already there.