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STM32H750XB_RT-THREAD/46-DCMI—OV5640摄像头实验/User/camera/bsp_ov5640.c

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STM32H750 RTThread 例程
2025-07-21 06:34:29 +00:00
/**
******************************************************************************
* @file bsp_sdram.c
* @author fire
* @version V1.0
* @date 2015-xx-xx
* @brief OV5640<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
******************************************************************************
* @attention
*
* ʵ<EFBFBD><EFBFBD>ƽ̨:<EFBFBD><EFBFBD><EFBFBD><EFBFBD> STM32 H743 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>̳ :http://www.firebbs.cn
* <EFBFBD>Ա<EFBFBD> :http://firestm32.taobao.com
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "./camera/bsp_ov5640.h"
#include "./i2c/bsp_i2c.h"
#include "./delay/core_delay.h"
DCMI_HandleTypeDef DCMI_Handle;
DMA_HandleTypeDef DMA_Handle_dcmi;
/** @addtogroup DCMI_Camera
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define TIMEOUT 2
ImageFormat_TypeDef ImageFormat;
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
unsigned short RGB565_Init[][2]=
{
//15fps VGA RGB565 output
// 24MHz input clock, 24MHz PCLK
0x3103, 0x11, // system clock from pad, bit[1]
0x3008, 0x82, // software reset, bit[7]
// delay 5ms
0x3008, 0x42, // software power down, bit[6]
0x3103, 0x03, // system clock from PLL, bit[1]
0x3017, 0xff, // FREX, Vsync, HREF, PCLK, D[9:6] output enable
0x3018, 0xff, // D[5:0], GPIO[1:0] output enable
0x3034, 0x1a, // MIPI 10-bit
0x3037, 0x13, // PLL root divider, bit[4], PLL pre-divider, bit[3:0]
0x3108, 0x01, // PCLK root divider, bit[5:4], SCLK2x root divider, bit[3:2]
// SCLK root divider, bit[1:0]
0x3630, 0x36,
0x3631, 0x0e,
0x3632, 0xe2,
0x3633, 0x12,
0x3621, 0xe0,
0x3704, 0xa0,
0x3703, 0x5a,
0x3715, 0x78,
0x3717, 0x01,
0x370b, 0x60,
0x3705, 0x1a,
0x3905, 0x02,
0x3906, 0x10,
0x3901, 0x0a,
0x3731, 0x12,
0x3600, 0x08, // VCM control
0x3601, 0x33, // VCM control
0x302d, 0x60, // system control
0x3620, 0x52,
0x371b, 0x20,
0x471c, 0x50,
0x3a13, 0x43, // pre-gain = 1.047x
0x3a18, 0x00, // gain ceiling
0x3a19, 0xf8, // gain ceiling = 15.5x
0x3635, 0x13,
0x3636, 0x03,
0x3634, 0x40,
0x3622, 0x01,
// 50/60Hz detection 50/60Hz <20>ƹ<EFBFBD><C6B9><EFBFBD><EFBFBD>ƹ<EFBFBD><C6B9><EFBFBD>
0x3c01, 0x34, // Band auto, bit[7]
0x3c04, 0x28, // threshold low sum
0x3c05, 0x98, // threshold high sum
0x3c06, 0x00, // light meter 1 threshold[15:8]
0x3c07, 0x08, // light meter 1 threshold[7:0]
0x3c08, 0x00, // light meter 2 threshold[15:8]
0x3c09, 0x1c, // light meter 2 threshold[7:0]
0x3c0a, 0x9c, // sample number[15:8]
0x3c0b, 0x40, // sample number[7:0]
0x3810, 0x00, // Timing Hoffset[11:8]
0x3811, 0x10, // Timing Hoffset[7:0]
0x3812, 0x00, // Timing Voffset[10:8]
0x3708, 0x64,
0x4001, 0x02, // BLC start from line 2
0x4005, 0x1a, // BLC always update
0x3000, 0x00, // enable blocks
0x3004, 0xff, // enable clocks
0x300e, 0x58, // MIPI power down, DVP enable
0x302e, 0x00,
0x4300, 0x6f, // RGB565
0x501f, 0x01, // RGB565
0x440e, 0x00,
0x5000, 0xa7, // Lenc on, raw gamma on, BPC on, WPC on, CIP on
// AEC target <20>Զ<EFBFBD><D4B6>ع<EFBFBD><D8B9><EFBFBD><EFBFBD><EFBFBD>
0x3a0f, 0x30, // stable range in high
0x3a10, 0x28, // stable range in low
0x3a1b, 0x30, // stable range out high
0x3a1e, 0x26, // stable range out low
0x3a11, 0x60, // fast zone high
0x3a1f, 0x14, // fast zone low
// Lens correction for ? <20><>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>
0x5800, 0x23,
0x5801, 0x14,
0x5802, 0x0f,
0x5803, 0x0f,
0x5804, 0x12,
0x5805, 0x26,
0x5806, 0x0c,
0x5807, 0x08,
0x5808, 0x05,
0x5809, 0x05,
0x580a, 0x08,
0x580b, 0x0d,
0x580c, 0x08,
0x580d, 0x03,
0x580e, 0x00,
0x580f, 0x00,
0x5810, 0x03,
0x5811, 0x09,
0x5812, 0x07,
0x5813, 0x03,
0x5814, 0x00,
0x5815, 0x01,
0x5816, 0x03,
0x5817, 0x08,
0x5818, 0x0d,
0x5819, 0x08,
0x581a, 0x05,
0x581b, 0x06,
0x581c, 0x08,
0x581d, 0x0e,
0x581e, 0x29,
0x581f, 0x17,
0x5820, 0x11,
0x5821, 0x11,
0x5822, 0x15,
0x5823, 0x28,
0x5824, 0x46,
0x5825, 0x26,
0x5826, 0x08,
0x5827, 0x26,
0x5828, 0x64,
0x5829, 0x26,
0x582a, 0x24,
0x582b, 0x22,
0x582c, 0x24,
0x582d, 0x24,
0x582e, 0x06,
0x582f, 0x22,
0x5830, 0x40,
0x5831, 0x42,
0x5832, 0x24,
0x5833, 0x26,
0x5834, 0x24,
0x5835, 0x22,
0x5836, 0x22,
0x5837, 0x26,
0x5838, 0x44,
0x5839, 0x24,
0x583a, 0x26,
0x583b, 0x28,
0x583c, 0x42,
0x583d, 0xce, // lenc BR offset
// AWB <20>Զ<EFBFBD><D4B6><EFBFBD>ƽ<EFBFBD><C6BD>
0x5180, 0xff, // AWB B block
0x5181, 0xf2, // AWB control
0x5182, 0x00, // [7:4] max local counter, [3:0] max fast counter
0x5183, 0x14, // AWB advanced
0x5184, 0x25,
0x5185, 0x24,
0x5186, 0x09,
0x5187, 0x09,
0x5188, 0x09,
0x5189, 0x75,
0x518a, 0x54,
0x518b, 0xe0,
0x518c, 0xb2,
0x518d, 0x42,
0x518e, 0x3d,
0x518f, 0x56,
0x5190, 0x46,
0x5191, 0xf8, // AWB top limit
0x5192, 0x04, // AWB bottom limit
0x5193, 0x70, // red limit
0x5194, 0xf0, // green limit
0x5195, 0xf0, // blue limit
0x5196, 0x03, // AWB control
0x5197, 0x01, // local limit
0x5198, 0x04,
0x5199, 0x12,
0x519a, 0x04,
0x519b, 0x00,
0x519c, 0x06,
0x519d, 0x82,
0x519e, 0x38, // AWB control
// Gamma ٤<><D9A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
0x5480, 0x01, // Gamma bias plus on, bit[0]
0x5481, 0x08,
0x5482, 0x14,
0x5483, 0x28,
0x5484, 0x51,
0x5485, 0x65,
0x5486, 0x71,
0x5487, 0x7d,
0x5488, 0x87,
0x5489, 0x91,
0x548a, 0x9a,
0x548b, 0xaa,
0x548c, 0xb8,
0x548d, 0xcd,
0x548e, 0xdd,
0x548f, 0xea,
0x5490, 0x1d,
// color matrix ɫ<>ʾ<EFBFBD><CABE><EFBFBD>
0x5381, 0x1e, // CMX1 for Y
0x5382, 0x5b, // CMX2 for Y
0x5383, 0x08, // CMX3 for Y
0x5384, 0x0a, // CMX4 for U
0x5385, 0x7e, // CMX5 for U
0x5386, 0x88, // CMX6 for U
0x5387, 0x7c, // CMX7 for V
0x5388, 0x6c, // CMX8 for V
0x5389, 0x10, // CMX9 for V
0x538a, 0x01, // sign[9]
0x538b, 0x98, // sign[8:1]
// UV adjust UV ɫ<>ʱ<EFBFBD><CAB1>Ͷȵ<CDB6><C8B5><EFBFBD>
0x5580, 0x06, // saturation on, bit[1]
0x5583, 0x40,
0x5584, 0x10,
0x5589, 0x10,
0x558a, 0x00,
0x558b, 0xf8,
0x501d, 0x40, // enable manual offset of contrast
// CIP <20>񻯺ͽ<F1BBAFBA><CDBD><EFBFBD>
0x5300, 0x08, // CIP sharpen MT threshold 1
0x5301, 0x30, // CIP sharpen MT threshold 2
0x5302, 0x10, // CIP sharpen MT offset 1
0x5303, 0x00, // CIP sharpen MT offset 2
0x5304, 0x08, // CIP DNS threshold 1
0x5305, 0x30, // CIP DNS threshold 2
0x5306, 0x08, // CIP DNS offset 1
0x5307, 0x16, // CIP DNS offset 2
0x5309, 0x08, // CIP sharpen TH threshold 1
0x530a, 0x30, // CIP sharpen TH threshold 2
0x530b, 0x04, // CIP sharpen TH offset 1
0x530c, 0x06, // CIP sharpen TH offset 2
0x5025, 0x00,
0x3008, 0x02, // wake up from standby, bit[6]
// 0x503d, 0x80,//<2F><><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>
// 0x4741, 0x00,
};
unsigned short RGB565_QVGA[][2]=
{
// input clock 24Mhz, PCLK 45.6Mhz
0x3035, 0x41, // PLL
0x3036, 0x72, // PLL
0x3c07, 0x08, // light meter 1 threshold[7:0]
0x3820, 0x42, // flip
0x3821, 0x00, // mirror
0x3814, 0x31, // timing X inc
0x3815, 0x31, // timing Y inc
0x3800, 0x00, // HS
0x3801, 0x00, // HS
0x3802, 0x00, // VS
0x3803, 0xbe, // VS
0x3804, 0x0a, // HW (HE)
0x3805, 0x3f, // HW (HE)
0x3806, 0x06, // VH (VE)
0x3807, 0xe4, // VH (VE)
0x3808, 0x01, // DVPHO = 320
0x3809, 0x40, // DVP HO
0x380a, 0x00, // DVPVO = 240
0x380b, 0xf0, // DVPVO
0x3810, 0x00, // H offset = 16
0x3811, 0x10, // H offset
0x3812, 0x00, // V offset = 4
0x3813, 0x04, // V offset
0x380c, 0x07, // HTS
0x380d, 0x69, // HTS
0x380e, 0x03, // VTS
0x380f, 0x21, // VTS
0x3618, 0x00,
0x3612, 0x29,
0x3709, 0x52,
0x370c, 0x03,
0x3a02, 0x09, // 60Hz max exposure, night mode 5fps
0x3a03, 0x63, // 60Hz max exposure
0x3a14, 0x09, // 50Hz max exposure, night mode 5fps
0x3a15, 0x63, // 50Hz max exposure
0x4004, 0x02, // BLC line number
0x3002, 0x1c, // reset JFIFO, SFIFO, JPG
0x3006, 0xc3, // disable clock of JPEG2x, JPEG
0x4713, 0x03, // JPEG mode 3
0x4407, 0x04, // Quantization sacle
0x460b, 0x35,
0x460c, 0x22,
0x4837, 0x22, // MIPI global timing
0x3824, 0x02, // PCLK manual divider
0x5001, 0xa3, // SDE on, CMX on, AWB on
0x3503, 0x00, // AEC/AGC on// /* Initialize OV5640 */
};
unsigned short RGB565_VGA[][2]=
{
// input clock 24Mhz, PCLK 45.6Mhz
0x3035, 0x41, // PLL
0x3036, 0x72, // PLL
0x3c07, 0x08, // light meter 1 threshold[7:0]
0x3820, 0x42, // flip
0x3821, 0x00, // mirror
0x3814, 0x31, // timing X inc
0x3815, 0x31, // timing Y inc
0x3800, 0x00, // HS
0x3801, 0x00, // HS
0x3802, 0x00, // VS
0x3803, 0xbe, // VS
0x3804, 0x0a, // HW (HE)
0x3805, 0x3f, // HW (HE)
0x3806, 0x06, // VH (VE)
0x3807, 0xe4, // VH (VE)
0x3808, 0x02, // DVPHO = 640
0x3809, 0x80, // DVP HO
0x380a, 0x01, // DVPVO = 480
0x380b, 0xe0, // DVPVO
0x3810, 0x00, // H offset = 16
0x3811, 0x10, // H offset
0x3812, 0x00, // V offset = 4
0x3813, 0x04, // V offset
0x380c, 0x07, // HTS
0x380d, 0x69, // HTS
0x380e, 0x03, // VTS
0x380f, 0x21, // VTS
// 0x3813, 0x06, // timing V offset
0x3618, 0x00,
0x3612, 0x29,
0x3709, 0x52,
0x370c, 0x03,
0x3a02, 0x09, // 60Hz max exposure, night mode 5fps
0x3a03, 0x63, // 60Hz max exposure
0x3a14, 0x09, // 50Hz max exposure, night mode 5fps
0x3a15, 0x63, // 50Hz max exposure
0x4004, 0x02, // BLC line number
0x3002, 0x1c, // reset JFIFO, SFIFO, JPG
0x3006, 0xc3, // disable clock of JPEG2x, JPEG
0x4713, 0x03, // JPEG mode 3
0x4407, 0x04, // Quantization sacle
0x460b, 0x35,
0x460c, 0x22,
0x4837, 0x22, // MIPI global timing
0x3824, 0x02, // PCLK manual divider
0x5001, 0xa3, // SDE on, CMX on, AWB on
0x3503, 0x00, // AEC/AGC on// /* Initialize OV5640 */
};
unsigned short RGB565_WVGA[][2]=
{
// 800x480 15fps, night mode 5fps
// input clock 24Mhz, PCLK 45.6Mhz
0x3035, 0x41, // PLL
0x3036, 0x72, // PLL
0x3c07, 0x08, // light meter 1 threshold[7:0]
0x3820, 0x42, // flip
0x3821, 0x00, // mirror
0x3814, 0x31, // timing X inc
0x3815, 0x31, // timing Y inc
0x3800, 0x00, // HS
0x3801, 0x00, // HS
0x3802, 0x00, // VS
0x3803, 0xbe, // VS
0x3804, 0x0a, // HW (HE)
0x3805, 0x3f, // HW (HE)
0x3806, 0x06, // VH (VE)
0x3807, 0xe4, // VH (VE)
0x3808, 0x03, // DVPHO
0x3809, 0x20, // DVPHO
0x380a, 0x01, // DVPVO
0x380b, 0xe0, // DVPVO
0x380c, 0x07, // HTS
0x380d, 0x69, // HTS
0x380e, 0x03, // VTS
0x380f, 0x21, // VTS
0x3813, 0x06, // timing V offset
0x3618, 0x00,
0x3612, 0x29,
0x3709, 0x52,
0x370c, 0x03,
0x3a02, 0x09, // 60Hz max exposure, night mode 5fps
0x3a03, 0x63, // 60Hz max exposure
// banding filters are calculated automatically in camera driver
//0x3a08, 0x00, // B50 step
//0x3a09, 0x78, // B50 step
//0x3a0a, 0x00, // B60 step
//0x3a0b, 0x64, // B60 step
//0x3a0e, 0x06, // 50Hz max band
//0x3a0d, 0x08, // 60Hz max band
0x3a14, 0x09, // 50Hz max exposure, night mode 5fps
0x3a15, 0x63, // 50Hz max exposure
0x4004, 0x02, // BLC line number
0x3002, 0x1c, // reset JFIFO, SFIFO, JPG
0x3006, 0xc3, // disable clock of JPEG2x, JPEG
0x4713, 0x03, // JPEG mode 3
0x4407, 0x04, // Quantization sacle
0x460b, 0x35,
0x460c, 0x22,
0x4837, 0x22, // MIPI global timing
0x3824, 0x02, // PCLK manual divider
0x5001, 0xa3, // SDE on, CMX on, AWB on
0x3503, 0x00, // AEC/AGC on// /* Initialize OV5640 */
// 0x503d, 0x80,//<2F><><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD>
// 0x4741, 0x00,
};
/**
* @brief <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷʹ<EFBFBD>õ<EFBFBD>GPIO(I2C/DCMI)
* @param None
* @retval None
*/
void OV5640_HW_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/***DCMI<4D><49><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>***/
/* ʹ<><CAB9>DCMIʱ<49><CAB1> */
DCMI_PWDN_GPIO_CLK_ENABLE();
DCMI_RST_GPIO_CLK_ENABLE();
DCMI_VSYNC_GPIO_CLK_ENABLE();
DCMI_HSYNC_GPIO_CLK_ENABLE();
DCMI_PIXCLK_GPIO_CLK_ENABLE();
DCMI_D0_GPIO_CLK_ENABLE();
DCMI_D1_GPIO_CLK_ENABLE();
DCMI_D2_GPIO_CLK_ENABLE();
DCMI_D3_GPIO_CLK_ENABLE();
DCMI_D4_GPIO_CLK_ENABLE();
DCMI_D5_GPIO_CLK_ENABLE();
DCMI_D6_GPIO_CLK_ENABLE();
DCMI_D7_GPIO_CLK_ENABLE();
/*<2A><><EFBFBD><EFBFBD>/ͬ<><CDAC><EFBFBD>ź<EFBFBD><C5BA><EFBFBD>*/
GPIO_InitStructure.Pin = DCMI_VSYNC_GPIO_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Pull = GPIO_PULLUP ;
GPIO_InitStructure.Alternate = DCMI_VSYNC_AF;
HAL_GPIO_Init(DCMI_VSYNC_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_HSYNC_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_VSYNC_AF;
HAL_GPIO_Init(DCMI_HSYNC_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_PIXCLK_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_PIXCLK_AF;
HAL_GPIO_Init(DCMI_PIXCLK_GPIO_PORT, &GPIO_InitStructure);
/*<2A><><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD>*/
GPIO_InitStructure.Pin = DCMI_D0_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D0_AF;
HAL_GPIO_Init(DCMI_D0_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_D1_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D1_AF;
HAL_GPIO_Init(DCMI_D1_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_D2_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D2_AF;
HAL_GPIO_Init(DCMI_D2_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_D3_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D3_AF;
HAL_GPIO_Init(DCMI_D3_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_D4_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D4_AF;
HAL_GPIO_Init(DCMI_D4_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_D5_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D5_AF;
HAL_GPIO_Init(DCMI_D5_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_D6_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D6_AF;
HAL_GPIO_Init(DCMI_D6_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_D7_GPIO_PIN;
GPIO_InitStructure.Alternate = DCMI_D7_AF;
HAL_GPIO_Init(DCMI_D7_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_PWDN_GPIO_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
HAL_GPIO_Init(DCMI_PWDN_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = DCMI_RST_GPIO_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
HAL_GPIO_Init(DCMI_RST_GPIO_PORT, &GPIO_InitStructure);
HAL_GPIO_WritePin(DCMI_RST_GPIO_PORT,DCMI_RST_GPIO_PIN,GPIO_PIN_RESET);
/*PWDN<44><4E><EFBFBD>ţ<EFBFBD><C5A3>ߵ<EFBFBD>ƽ<EFBFBD>رյ<D8B1>Դ<EFBFBD><D4B4><EFBFBD>͵<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>*/
HAL_GPIO_WritePin(DCMI_PWDN_GPIO_PORT,DCMI_PWDN_GPIO_PIN,GPIO_PIN_SET);
HAL_GPIO_WritePin(DCMI_PWDN_GPIO_PORT,DCMI_PWDN_GPIO_PIN,GPIO_PIN_RESET);
Delay(10);
HAL_GPIO_WritePin(DCMI_RST_GPIO_PORT,DCMI_RST_GPIO_PIN,GPIO_PIN_SET);
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ50ms,ģ<><C4A3><EFBFBD>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Delay(50);
}
/**
* @brief Resets the OV5640 camera.
* @param None
* @retval None
*/
void OV5640_Reset(void)
{
/*OV5640<34><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ*/
OV5640_WriteReg(0x3008, 0x80);
}
/**
* @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD>ID.
* @param OV5640ID: <EFBFBD>洢ID<EFBFBD>Ľṹ<EFBFBD><EFBFBD>
* @retval None
*/
void OV5640_ReadID(OV5640_IDTypeDef *OV5640ID)
{
/*<2A><>ȡ<EFBFBD>Ĵ<EFBFBD>оƬID*/
OV5640ID->PIDH = OV5640_ReadReg(OV5640_SENSOR_PIDH);
OV5640ID->PIDL = OV5640_ReadReg(OV5640_SENSOR_PIDL);
}
/**
* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD> DCMI/DMA <EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param None
* @retval None
*/
void OV5640_Init(void)
{
/*** <20><><EFBFBD><EFBFBD>DCMI<4D>ӿ<EFBFBD> ***/
/* ʹ<><CAB9>DCMIʱ<49><CAB1> */
__HAL_RCC_DCMI_CLK_ENABLE();
/* DCMI <20><><EFBFBD><EFBFBD>*/
//DCMI<4D><49><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
DCMI_Handle.Instance = DCMI;
//<2F><><EFBFBD><EFBFBD><EFBFBD>ɼ<EFBFBD>ģʽ
DCMI_Handle.Init.SynchroMode = DCMI_MODE_CONTINUOUS;
//<2F><><EFBFBD><EFBFBD><EFBFBD>ɼ<EFBFBD>ģʽ
DCMI_Handle.Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
//<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
DCMI_Handle.Init.PCKPolarity = DCMI_PCKPOLARITY_RISING;
//VSP<53>ߵ<EFBFBD>ƽ<EFBFBD><C6BD>Ч
DCMI_Handle.Init.VSPolarity = DCMI_VSPOLARITY_HIGH;
//HSP<53>͵<EFBFBD>ƽ<EFBFBD><C6BD>Ч
DCMI_Handle.Init.HSPolarity = DCMI_HSPOLARITY_LOW;
//ȫ<>ɼ<EFBFBD>
DCMI_Handle.Init.CaptureRate = DCMI_CR_ALL_FRAME;
//8λ<38><CEBB><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD>
DCMI_Handle.Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
HAL_DCMI_Init(&DCMI_Handle);
/* <20><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD> */
HAL_NVIC_SetPriority(DCMI_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(DCMI_IRQn);
//dma_memory <20><>16λ<36><CEBB><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>λ<EFBFBD><CEBB> dma_bufsize<7A><65>32λ<32><CEBB><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>λ(<28><><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><D8B8><EFBFBD>/2)
OV5640_DMA_Config(LCD_FB_START_ADDRESS,LCD_GetXSize()*LCD_GetYSize()/2);
}
/**
* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD> DCMI/DMA <EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param DMA_Memory0BaseAddr:<EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD>׵<EFBFBD>ַ
* @param DMA_BufferSize<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<EFBFBD><EFBFBD>λΪ<EFBFBD><EFBFBD>,<EFBFBD><EFBFBD>4<EFBFBD>ֽ<EFBFBD>)
*/
void OV5640_DMA_Config(uint32_t DMA_Memory0BaseAddr,uint32_t DMA_BufferSize)
{
/* <20><><EFBFBD><EFBFBD>DMA<4D><41>DCMI<4D>л<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>*/
/* ʹ<><CAB9>DMA*/
__HAL_RCC_DMA2_CLK_ENABLE();
DMA_Handle_dcmi.Instance = DMA2_Stream1;
DMA_Handle_dcmi.Init.Request = DMA_REQUEST_DCMI;
DMA_Handle_dcmi.Init.Direction = DMA_PERIPH_TO_MEMORY;
DMA_Handle_dcmi.Init.PeriphInc = DMA_PINC_DISABLE;
DMA_Handle_dcmi.Init.MemInc = DMA_MINC_ENABLE; //<2F>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>
DMA_Handle_dcmi.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
DMA_Handle_dcmi.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
DMA_Handle_dcmi.Init.Mode = DMA_CIRCULAR; //ѭ<><D1AD>ģʽ
DMA_Handle_dcmi.Init.Priority = DMA_PRIORITY_HIGH;
DMA_Handle_dcmi.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
DMA_Handle_dcmi.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
DMA_Handle_dcmi.Init.MemBurst = DMA_MBURST_INC4;
DMA_Handle_dcmi.Init.PeriphBurst = DMA_PBURST_SINGLE;
/*DMA<4D>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD> */
__HAL_LINKDMA(&DCMI_Handle, DMA_Handle, DMA_Handle_dcmi);
HAL_NVIC_SetPriority(DMA2_Stream1_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream1_IRQn);
HAL_DMA_Init(&DMA_Handle_dcmi);
//ʹ<><CAB9>DCMI<4D>ɼ<EFBFBD><C9BC><EFBFBD><EFBFBD><EFBFBD>
HAL_DCMI_Start_DMA(&DCMI_Handle, DCMI_MODE_CONTINUOUS, (uint32_t)DMA_Memory0BaseAddr,DMA_BufferSize);
}
unsigned short sensor_reg[(sizeof(RGB565_Init)/4)];
/**
* @brief Configures the OV5640 camera in BMP mode.
* @param BMP ImageSize: BMP image size
* @retval None
*/
void OV5640_RGB565Config(void)
{
uint32_t i;
/*<2A><><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>λ*/
OV5640_Reset();
/* д<><D0B4><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
/* Initialize OV5640 Set to output RGB565 */
for(i=0; i<(sizeof(RGB565_Init)/4); i++)
{
OV5640_WriteReg(RGB565_Init[i][0], RGB565_Init[i][1]);
HAL_Delay(10);
sensor_reg[i] = OV5640_ReadReg(RGB565_Init[i][0]);
if(RGB565_Init[i][1] != sensor_reg[i])
CAMERA_DEBUG("sensor_reg[0x%x]:%x-%x\n",RGB565_Init[i][0],RGB565_Init[i][1],sensor_reg[i]);
}
// Delay(500);
if(img_width == 320)
ImageFormat=BMP_320x240;
else if(img_width == 640)
ImageFormat=BMP_640x480;
else if(img_width == 800)
ImageFormat=BMP_800x480;
switch(ImageFormat)
{
case BMP_320x240:
{
for(i=0; i<(sizeof(RGB565_QVGA)/4); i++)
{
OV5640_WriteReg(RGB565_QVGA[i][0], RGB565_QVGA[i][1]);
}
break;
}
case BMP_640x480:
{
for(i=0; i<(sizeof(RGB565_VGA)/4); i++)
{
OV5640_WriteReg(RGB565_VGA[i][0], RGB565_VGA[i][1]);
}
break;
}
case BMP_800x480:
{
for(i=0; i<(sizeof(RGB565_WVGA)/4); i++)
{
OV5640_WriteReg(RGB565_WVGA[i][0], RGB565_WVGA[i][1]);
sensor_reg[i] = OV5640_ReadReg(RGB565_WVGA[i][0]);
if(RGB565_WVGA[i][1] != sensor_reg[i])
CAMERA_DEBUG("sensor_reg[0x%x]:%x-%x\n",RGB565_Init[i][0],RGB565_Init[i][1],sensor_reg[i]);
}
printf("OK\r\n");
break;
}
default:
{
for(i=0; i<(sizeof(RGB565_WVGA)/4); i++)
{
OV5640_WriteReg(RGB565_WVGA[i][0], RGB565_WVGA[i][1]);
}
break;
}
}
OV5640_ReadReg(RGB565_WVGA[i][0]);
}
extern uint8_t fps;
/**
* @brief Line event callback.
* @param None
* @retval None
*/
void HAL_DCMI_VsyncEventCallback(DCMI_HandleTypeDef *hdcmi)
{
// SCB_InvalidateDCache_by_Addr((uint32_t*)LCD_FB_START_ADDRESS,LCD_GetXSize()*LCD_GetYSize()/2);
fps++; //֡<>ʼ<EFBFBD><CABC><EFBFBD>
OV5640_DMA_Config(LCD_FB_START_ADDRESS,LCD_GetXSize()*LCD_GetYSize()/2);
}
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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