initializing ov5640 on kaluga is taking a long time (seconds) #7537
Description
CircuitPython version
Adafruit CircuitPython 8.0.0-rc.1 on 2023-01-30; Kaluga 1 with ESP32S2
Board ID:espressif_kaluga_1.3
UID:C7FD1AB0FD6DCode/REPL
# SPDX-FileCopyrightText: Copyright (c) 2021 Jeff Epler for Adafruit Industries
#
# SPDX-License-Identifier: Unlicense
"""
This demo is designed for the Kaluga development kit version 1.3 with the
ILI9341 display. It requires CircuitPython 8.
To fix the MemoryError when creating a Camera object, Place the line
CIRCUITPY_RESERVED_PSRAM=1048576
in the file **CIRCUITPY/settings.toml** and restart.
"""
import struct
import board
import busio
import keypad
import displayio
import espcamera
import espidf
print("Initializing display")
displayio.release_displays()
spi = busio.SPI(MOSI=board.LCD_MOSI, clock=board.LCD_CLK)
display_bus = displayio.FourWire(
spi,
command=board.LCD_D_C,
chip_select=board.LCD_CS,
reset=board.LCD_RST,
baudrate=80_000_000,
)
_INIT_SEQUENCE = (
b"\x01\x80\x80" # Software reset then delay 0x80 (128ms)
b"\xEF\x03\x03\x80\x02"
b"\xCF\x03\x00\xC1\x30"
b"\xED\x04\x64\x03\x12\x81"
b"\xE8\x03\x85\x00\x78"
b"\xCB\x05\x39\x2C\x00\x34\x02"
b"\xF7\x01\x20"
b"\xEA\x02\x00\x00"
b"\xc0\x01\x23" # Power control VRH[5:0]
b"\xc1\x01\x10" # Power control SAP[2:0];BT[3:0]
b"\xc5\x02\x3e\x28" # VCM control
b"\xc7\x01\x86" # VCM control2
b"\x36\x01\x40" # Memory Access Control
b"\x37\x01\x00" # Vertical scroll zero
b"\x3a\x01\x55" # COLMOD: Pixel Format Set
b"\xb1\x02\x00\x18" # Frame Rate Control (In Normal Mode/Full Colors)
b"\xb6\x03\x08\x82\x27" # Display Function Control
b"\xF2\x01\x00" # 3Gamma Function Disable
b"\x26\x01\x01" # Gamma curve selected
b"\xe0\x0f\x0F\x31\x2B\x0C\x0E\x08\x4E\xF1\x37\x07\x10\x03\x0E\x09\x00" # Set Gamma
b"\xe1\x0f\x00\x0E\x14\x03\x11\x07\x31\xC1\x48\x08\x0F\x0C\x31\x36\x0F" # Set Gamma
b"\x11\x80\x78" # Exit Sleep then delay 0x78 (120ms)
b"\x29\x80\x78" # Display on then delay 0x78 (120ms)
)
display = displayio.Display(display_bus, _INIT_SEQUENCE, width=320, height=240)
if espidf.get_reserved_psram() < 1047586:
print("""Place the following line in CIRCUITPY/settings.toml, then reset:
CIRCUITPY_RESERVED_PSRAM
""")
raise SystemExit
print("Initializing camera")
cam = espcamera.Camera(
data_pins=board.CAMERA_DATA,
external_clock_pin=board.CAMERA_XCLK,
pixel_clock_pin=board.CAMERA_PCLK,
vsync_pin=board.CAMERA_VSYNC,
href_pin=board.CAMERA_HREF,
pixel_format=espcamera.PixelFormat.RGB565,
frame_size=espcamera.FrameSize.QVGA,
i2c=board.I2C(),
external_clock_frequency=20_000_000,
framebuffer_count=2)
print(cam.width, cam.height)
display.auto_refresh = False
k = keypad.Keys([board.IO0], value_when_pressed=False)
ow = (display.width - cam.width) // 2
oh = (display.height - cam.height) // 2
display_bus.send(42, struct.pack(">hh", ow, cam.width + ow - 1))
display_bus.send(43, struct.pack(">hh", oh, cam.height + ow - 1))
while True:
if (e := k.events.get()) is not None and e.pressed:
cam.colorbar = not cam.colorbar
frame = cam.take(1)
display_bus.send(44, frame)Behavior
It pauses for a couple seconds after it prints "initializing camera". Would prefer if the initialization was near-instant! (and I feel like it used to be faster than this)
Description
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Additional information
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