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fix(st7789): program RAMCTRL for I80 RGB565 byte order

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Ensure ST7789 RAMCTRL sets RGB565 swap on 8‑bit
I80 buses to fix color endianness; SPI path unchanged.
This commit is contained in:
Thomas Farstrike
2026-02-25 16:02:40 +01:00
parent f339979440
commit 85498e47a3
1 changed files with 5 additions and 7 deletions
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internal_filesystem/lib/drivers/display/st7789/_st7789_init.py
+5 -7
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@@ -60,16 +60,14 @@ def init(self):
# sets swapping the bytes at the hardware level.
if (
self._rgb565_byte_swap and
isinstance(self._data_bus, lcd_bus.I80Bus) and
self._data_bus.get_lane_count() == 8
):
color_size = lv.color_format_get_size(self._color_space)
if isinstance(self._data_bus, lcd_bus.I80Bus) and color_size == 2:
param_buf[0] = 0x00
param_buf[1] = 0xF0 | _RGB565SWAP
param_buf[1] = 0xF0
if self._data_bus.get_lane_count() == 8:
param_buf[1] |= _RGB565SWAP
self.set_params(_RAMCTRL, param_mv[:2])
color_size = lv.color_format_get_size(self._color_space)
if color_size == 2: # NOQA
pixel_format = 0x55
elif color_size == 3: