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drivers/lcd/st7789.c: fix byte order in st7789_fill for 3 wires
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The bytes of color should be sent in an opposite order in st7789_fill
function if the driver operates in 3 wire mode.

Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This commit is contained in:
Michal Lenc
2025-12-03 10:26:14 +01:00
committed by Xiang Xiao
parent fdedb5bccd
commit 30300491bc
1 changed files with 1 additions and 1 deletions
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drivers/lcd/st7789.c
+1 -1
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@@ -717,8 +717,8 @@ static void st7789_fill(FAR struct st7789_dev_s *dev, uint16_t color)
for (i = 0; i < ST7789_XRES * ST7789_YRES; i++)
{
SPI_SEND(dev->spi, LCD_ST7789_DATA_PREFIX | (color & 0xff));
SPI_SEND(dev->spi, LCD_ST7789_DATA_PREFIX | (color & 0xff00) >> 8);
SPI_SEND(dev->spi, LCD_ST7789_DATA_PREFIX | (color & 0xff));
}
#else
st7789_select(dev->spi, ST7789_BYTESPP * LCD_ST7789_SPI_BITS);