Merge pull request #3084 from adafruit/TheKitty-patch-12

Create DVI_Framebuffer.py

Author: TheKitty

Fruit_Jam/CircuitPython_DVI_Video/DVI_Framebuffer.py

@@ -0,0 +1,56 @@
+# SPDX-FileCopyrightText: 2025 Anne Barela for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+#
+# Set up a DVI display using Framebufferio and displayio
+# Text and drawing is all done vis displayio
+#
+import sys
+import microcontroller
+import board
+import displayio
+import terminalio
+import framebufferio
+import picodvi
+from adafruit_display_text import label
+
+# Initialize displayio
+displayio.release_displays()
+try:
+    fb = picodvi.Framebuffer(640, 480, clk_dp=board.CKP, clk_dn=board.CKN,
+                             red_dp=board.D0P, red_dn=board.D0N,
+                             green_dp=board.D1P, green_dn=board.D1N,
+                             blue_dp=board.D2P, blue_dn=board.D2N,
+                             color_depth=4)
+except ValueError as e:
+    print("Framebuffer error: ", e)
+    # Per picodvi/Framebuffer_RP2350.c only 320x240 at 8 & 16 bits work
+    # Show error
+    sys.exit(e)
+
+display = framebufferio.FramebufferDisplay(fb)
+display_group = displayio.Group()
+
+display.root_group = display_group
+
+# Create labels
+# pylint: disable=line-too-long
+text = "         1         2         3         4         5         6         7         8         9         0         1         2"
+text_area = label.Label(terminalio.FONT, text=text, color=0xFFFFFF)
+text_area.x = 0
+text_area.y = 5
+display_group.append(text_area)
+# pylint: disable=line-too-long
+text = "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
+text_area = label.Label(terminalio.FONT, text=text, color=0xFFFFFF)
+text_area.x = 0
+text_area.y = 15
+display_group.append(text_area)
+text = f"Microcontroller speed: {microcontroller.cpu.frequency}"
+text_area = label.Label(terminalio.FONT, text=text, color=0xFFFFFF)
+text_area.x = 5
+text_area.y = 40
+display_group.append(text_area)
+
+while True:
+    pass