https://github.com/espressif/esp32-came ... s/ov2640.c
I am doing this to program the ov2640 in bare metal on 640x480 resolution. I came up with the registers as such:
Code: Select all
{0xFF, 0x00}, // Select DSP bank
{0x2C, 0xFF}, // Reserved (PLL control)
{0x2E, 0xDF}, // Reserved (PLL control)
{0x00, 0x00},
// Timing and output format
{0xFF, 0x01}, // Select Sensor bank
{0x3C, 0x32}, //
{0x11, 0x10}, // Clock prescaler -> divide input clock (user request)
{0x15, 0x32}, // Output format control -> HREF/VSYNC only (no PCLK on sync)
{0x00, 0x00},
// YUV422
{0xFF, 0x00}, // DSP bank
{0xE0, 0x04}, // reset DVP
{0xC2, 0x08}, // enable DVP
{0xDA, 0x00}, // mode YUV422
{0xD7, 0x03}, // from default github
{0xE1, 0x67}, // from default github
{0xE0, 0x00}, // release reset
{0x00, 0x00},
// SET WINDOW SIZE
{0xFF, 0x00}, // DSP bank
{0X51, 0xC8}, // HSIZE
{0X52, 0x96}, // VSIZE
{0x53, 0x00}, // XOFFL -> 0
{0x54, 0x00}, // YOFFL -> 0
{0x55, 0x00}, // VHYX -> 0x00
{0x57, 0x00}, // TEST
/////////////////////////////////////////// ESP Source
// REGS TO SVGA
{0xFF, 0x01}, // Sensor bank
{0x12, 0x40}, // com 7 set SVGA mode
{0x03, 0x0A}, // SET COM1 to default SVGA Output
{0x32, 0x09}, // set reg32 to 0x09 default SVGA parameter
{0x17, 0x11}, // HSTART
{0x18, 0x43}, // HSTOP
{0x19, 0x00}, // VSTART
{0x1A, 0x4B}, // VSTOP
{0x00, 0x00},
{0xFF, 0x00}, // DSP bank
{0xE0, 0x04}, // Reset DVP
{0xC0, 0x64}, // Sensor resolution Horizontal image size
{0xC1, 0x4B}, // Sensor resolution Vertical image size
{0x8C, 0x00}, // Sensor resolution SizeL - {HSIZE[11], HSIZE[2:0], VSIZE[2:0]}
{0x86, 0x20 | 0x1D}, // ctrl2 enable DCW, SDE, UV_ADJ, UV_AVG & CMX
{0x50, 0x80}, // CTRL I - LP_DP
{0x00, 0x00},
// SET WINDOW SIZE
{0xFF, 0x00}, // DSP bank
{0X51, 0xA0}, // HSIZE -> max_x = 200
{0X52, 0x78}, // VSIZE -> max_y = 150
{0x53, 0x00}, // XOFFL -> 0
{0x54, 0x00}, // YOFFL -> 0
{0x55, 0x00}, // VHYX -> 0x00
{0x57, 0x00}, // TEST
// This part is not working for some reason...
{0x5A, 0xA0}, // OUTW (real / 4)
{0x5B, 0x78}, // OUTH (real / 4)
{0x5C, 0x00}, // [7:4] => zoom speed, [2] => OUTH[8], [1:0] => OUTW[9:8]
{0xD3, 0x82},
{0x00, 0x00},
{0xFF, 0xFF}, // End of table
The result is that I get 800x600 resolution, or at least, I'm reading 600 lines and per line 800 clock pulses so I assume still 800x600?
Why is that, what am I missing here?
Also, I want yuv422 which means y0 u y1 v -> 2 bytes per pixel. The 600 lines with 800 clock pulses suggest 1 byte per pixel?
What does it mean?
Datasheet: https://www.uctronics.com/download/cam_ ... 2640DS.pdf