本文主要是介绍STM32F4驱动OV2640获取JPG图片和RGB565格式图片-下位机，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
目录
1 环境
2 相关硬件
2.1 DCMI
2.2 按键
3 STM32CubeMX配置
3.1 SWD仿真接口
3.2 时钟配置
3.2.1 引脚
3.2.2 时钟树
3.3 I2C
3.4 DCMI
3.4.1 基本配置
3.4.2 配置DCMI的引脚
3.4.3 开启DCMI的DMA模式
3.4.4 开启中断
3.5 USART3
3.6 工程配置
3.7 生成代码
4. 增加相关代码
4.1 ov2640.c
4.2 ov2640.h
4.3 ov2640cfg.h
4.4 main.c
1 环境
Win10,
STM32CubeMX 5.3.0
STM32CubeF4 1.24.1
STM32CubeIDE 1.0.2
Waveshare Open407V-C开发板
2 相关硬件
2.1 DCMI
2.2 按键
3 STM32CubeMX配置
3.1 SWD仿真接口
3.2 时钟配置
3.2.1 引脚
3.2.2 时钟树
3.3 I2C
默认配置即可，引脚要选择PB10、PB11
3.4 DCMI
3.4.1 基本配置
要配置为Active on Rising edge，同时jpeg mode选择enabled
3.4.2 配置DCMI的引脚
另外PA8也需要的。
3.4.3 开启DCMI的DMA模式
3.4.4 开启中断
3.5 USART3
准备将图片通过USART3发送到PC端。因此，要初始化。
这里有两个步骤，1是在USART3的Mode中选择Asynchronous，2是在PC10和PC11选择USART3。
其他参数不变。
3.6 工程配置
h
这里可以配置工程路径，自行输入工程名字，IDE选择STM32CubeIDE。Heap size和stack size适当增加一点。我增加Heap size到0x500。Stack size到0x1000。（暂时未有根据要多少的size）
点击code generator中的generate perpherial initialization as a pair f .c/.h files per periherial
3.7 生成代码
点generate code
4. 增加相关代码
4.1 ov2640.c
/********************************************************************************* @file ov2640.c* @author MCD Application Team* @version V1.0.2* @date 02-December-2014* @brief This file provides the OV2640 camera driver******************************************************************************* @attention** <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>** Redistribution and use in source and binary forms, with or without modification,* are permitted provided that the following conditions are met:* 1. Redistributions of source code must retain the above copyright notice,* this list of conditions and the following disclaimer.* 2. Redistributions in binary form must reproduce the above copyright notice,* this list of conditions and the following disclaimer in the documentation* and/or other materials provided with the distribution.* 3. Neither the name of STMicroelectronics nor the names of its contributors* may be used to endorse or promote products derived from this software* without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.********************************************************************************/ /* Includes ------------------------------------------------------------------*/
#include "ov2640.h"
#include "ov2640cfg.h"
/** @addtogroup BSP* @{*/ /** @addtogroup Components* @{*/ /** @defgroup OV2640_Private_TypesDefinitions* @{*/ /*** @}*/ /** @defgroup OV2640_Private_Defines* @{*//*** @}*/ /** @defgroup OV2640_Private_Macros* @{*//*** @}*/ /** @defgroup OV2640_Private_FunctionPrototypes* @{*/
//static uint32_t ov2640_ConvertValue(uint32_t feature, uint32_t value);
/*** @}*/ /** @defgroup OV2640_Private_Variables* @{*/ /* Initialization sequence for 480x272 resolution */
const unsigned char OV2640_480x272[][2]=
{{0xff, 0x00}, /* Device control register list Table 12 */{0x2c, 0xff}, /* Reserved */{0x2e, 0xdf}, /* Reserved */{0xff, 0x01}, /* Device control register list Table 13 */{0x3c, 0x32}, /* Reserved */{0x11, 0x00}, /* Clock Rate Control */{0x09, 0x02}, /* Common control 2 */{0x04, 0xA8}, /* Mirror */{0x13, 0xe5}, /* Common control 8 */{0x14, 0x48}, /* Common control 9 */{0x2c, 0x0c}, /* Reserved */{0x33, 0x78}, /* Reserved */{0x3a, 0x33}, /* Reserved */{0x3b, 0xfB}, /* Reserved */{0x3e, 0x00}, /* Reserved */{0x43, 0x11}, /* Reserved */{0x16, 0x10}, /* Reserved */{0x4a, 0x81}, /* Reserved */{0x21, 0x99}, /* Reserved */{0x24, 0x40}, /* Luminance signal High range */{0x25, 0x38}, /* Luminance signal low range */{0x26, 0x82}, /* */{0x5c, 0x00}, /* Reserved */{0x63, 0x00}, /* Reserved */{0x46, 0x3f}, /* Frame length adjustment */{0x0c, 0x3c}, /* Common control 3 */{0x61, 0x70}, /* Histogram algo low level */{0x62, 0x80}, /* Histogram algo high level */{0x7c, 0x05}, /* Reserved */{0x20, 0x80}, /* Reserved */{0x28, 0x30}, /* Reserved */{0x6c, 0x00}, /* Reserved */{0x6d, 0x80}, /* Reserved */{0x6e, 0x00}, /* Reserved */{0x70, 0x02}, /* Reserved */{0x71, 0x94}, /* Reserved */{0x73, 0xc1}, /* Reserved */{0x3d, 0x34}, /* Reserved */{0x5a, 0x57}, /* Reserved */{0x12, 0x00}, /* Common control 7 */{0x11, 0x00}, /* Clock Rate Control 2*/{0x17, 0x11}, /* Horiz window start MSB 8bits */{0x18, 0x75}, /* Horiz window end MSB 8bits */{0x19, 0x01}, /* Vert window line start MSB 8bits */{0x1a, 0x97}, /* Vert window line end MSB 8bits */{0x32, 0x36},{0x03, 0x0f},{0x37, 0x40},{0x4f, 0xbb},{0x50, 0x9c},{0x5a, 0x57},{0x6d, 0x80},{0x6d, 0x38},{0x39, 0x02},{0x35, 0x88},{0x22, 0x0a},{0x37, 0x40},{0x23, 0x00},{0x34, 0xa0},{0x36, 0x1a},{0x06, 0x02},{0x07, 0xc0},{0x0d, 0xb7},{0x0e, 0x01},{0x4c, 0x00},{0xff, 0x00},{0xe5, 0x7f},{0xf9, 0xc0},{0x41, 0x24},{0xe0, 0x14},{0x76, 0xff},{0x33, 0xa0},{0x42, 0x20},{0x43, 0x18},{0x4c, 0x00},{0x87, 0xd0},{0x88, 0x3f},{0xd7, 0x03},{0xd9, 0x10},{0xd3, 0x82},{0xc8, 0x08},{0xc9, 0x80},{0x7d, 0x00},{0x7c, 0x03},{0x7d, 0x48},{0x7c, 0x08},{0x7d, 0x20},{0x7d, 0x10},{0x7d, 0x0e},{0x90, 0x00},{0x91, 0x0e},{0x91, 0x1a},{0x91, 0x31},{0x91, 0x5a},{0x91, 0x69},{0x91, 0x75},{0x91, 0x7e},{0x91, 0x88},{0x91, 0x8f},{0x91, 0x96},{0x91, 0xa3},{0x91, 0xaf},{0x91, 0xc4},{0x91, 0xd7},{0x91, 0xe8},{0x91, 0x20},{0x92, 0x00},{0x93, 0x06},{0x93, 0xe3},{0x93, 0x02},{0x93, 0x02},{0x93, 0x00},{0x93, 0x04},{0x93, 0x00},{0x93, 0x03},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x96, 0x00},{0x97, 0x08},{0x97, 0x19},{0x97, 0x02},{0x97, 0x0c},{0x97, 0x24},{0x97, 0x30},{0x97, 0x28},{0x97, 0x26},{0x97, 0x02},{0x97, 0x98},{0x97, 0x80},{0x97, 0x00},{0x97, 0x00},{0xc3, 0xef},{0xff, 0x00},{0xba, 0xdc},{0xbb, 0x08},{0xb6, 0x24},{0xb8, 0x33},{0xb7, 0x20},{0xb9, 0x30},{0xb3, 0xb4},{0xb4, 0xca},{0xb5, 0x43},{0xb0, 0x5c},{0xb1, 0x4f},{0xb2, 0x06},{0xc7, 0x00},{0xc6, 0x51},{0xc5, 0x11},{0xc4, 0x9c},{0xbf, 0x00},{0xbc, 0x64},{0xa6, 0x00},{0xa7, 0x1e},{0xa7, 0x6b},{0xa7, 0x47},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x2e},{0xa7, 0x85},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x1b},{0xa7, 0x74},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xc0, 0xc8},{0xc1, 0x96},{0x8c, 0x00},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x5a, 0x50},{0x5b, 0x3c},{0x5c, 0x00},{0xd3, 0x04},{0x7f, 0x00},{0xda, 0x00},{0xe5, 0x1f},{0xe1, 0x67},{0xe0, 0x00},{0xdd, 0x7f},{0x05, 0x00},{0xff, 0x00},{0xe0, 0x04},{0xc0, 0xc8},{0xc1, 0x96},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x57, 0x00},{0x5a, 0x50},{0x5b, 0x3c},{0x5c, 0x00},{0xd3, 0x04},{0xe0, 0x00},{0xFF, 0x00},{0x05, 0x00},{0xDA, 0x08},{0xda, 0x09},{0x98, 0x00},{0x99, 0x00},{0x00, 0x00},{0xff, 0x00},{0xe0, 0x04},{0xc0, 0xc8},{0xc1, 0x96},{0x86, 0x35},{0x50, 0x80},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x57, 0x00},{0x5a, 0x78},{0x5b, 0x44},{0x5c, 0x00},{0xd3, 0x04},{0xe0, 0x00},
};/* Initialization sequence for VGA resolution (640x480)*/
const unsigned char OV2640_VGA[][2]=
{{0xff, 0x00}, /* Device control register list Table 12 */{0x2c, 0xff}, /* Reserved */{0x2e, 0xdf}, /* Reserved */{0xff, 0x01}, /* Device control register list Table 13 */{0x3c, 0x32}, /* Reserved */{0x11, 0x00}, /* Clock Rate Control */{0x09, 0x02}, /* Common control 2 */{0x04, 0xA8}, /* Mirror */{0x13, 0xe5}, /* Common control 8 */{0x14, 0x48}, /* Common control 9 */{0x2c, 0x0c}, /* Reserved */{0x33, 0x78}, /* Reserved */{0x3a, 0x33}, /* Reserved */{0x3b, 0xfB}, /* Reserved */{0x3e, 0x00}, /* Reserved */{0x43, 0x11}, /* Reserved */{0x16, 0x10}, /* Reserved */{0x4a, 0x81}, /* Reserved */{0x21, 0x99}, /* Reserved */{0x24, 0x40}, /* Luminance signal High range */{0x25, 0x38}, /* Luminance signal low range */{0x26, 0x82}, /* */{0x5c, 0x00}, /* Reserved */{0x63, 0x00}, /* Reserved */{0x46, 0x3f}, /* Frame length adjustment */{0x0c, 0x3c}, /* Common control 3 */{0x61, 0x70}, /* Histogram algo low level */{0x62, 0x80}, /* Histogram algo high level */{0x7c, 0x05}, /* Reserved */{0x20, 0x80}, /* Reserved */{0x28, 0x30}, /* Reserved */{0x6c, 0x00}, /* Reserved */{0x6d, 0x80}, /* Reserved */{0x6e, 0x00}, /* Reserved */{0x70, 0x02}, /* Reserved */{0x71, 0x94}, /* Reserved */{0x73, 0xc1}, /* Reserved */{0x3d, 0x34}, /* Reserved */{0x5a, 0x57}, /* Reserved */{0x12, 0x00}, /* Common control 7 */{0x11, 0x00}, /* Clock Rate Control 2*/{0x17, 0x11}, /* Horiz window start MSB 8bits */{0x18, 0x75}, /* Horiz window end MSB 8bits */{0x19, 0x01}, /* Vert window line start MSB 8bits */{0x1a, 0x97}, /* Vert window line end MSB 8bits */{0x32, 0x36},{0x03, 0x0f},{0x37, 0x40},{0x4f, 0xbb},{0x50, 0x9c},{0x5a, 0x57},{0x6d, 0x80},{0x6d, 0x38},{0x39, 0x02},{0x35, 0x88},{0x22, 0x0a},{0x37, 0x40},{0x23, 0x00},{0x34, 0xa0},{0x36, 0x1a},{0x06, 0x02},{0x07, 0xc0},{0x0d, 0xb7},{0x0e, 0x01},{0x4c, 0x00},{0xff, 0x00},{0xe5, 0x7f},{0xf9, 0xc0},{0x41, 0x24},{0xe0, 0x14},{0x76, 0xff},{0x33, 0xa0},{0x42, 0x20},{0x43, 0x18},{0x4c, 0x00},{0x87, 0xd0},{0x88, 0x3f},{0xd7, 0x03},{0xd9, 0x10},{0xd3, 0x82},{0xc8, 0x08},{0xc9, 0x80},{0x7d, 0x00},{0x7c, 0x03},{0x7d, 0x48},{0x7c, 0x08},{0x7d, 0x20},{0x7d, 0x10},{0x7d, 0x0e},{0x90, 0x00},{0x91, 0x0e},{0x91, 0x1a},{0x91, 0x31},{0x91, 0x5a},{0x91, 0x69},{0x91, 0x75},{0x91, 0x7e},{0x91, 0x88},{0x91, 0x8f},{0x91, 0x96},{0x91, 0xa3},{0x91, 0xaf},{0x91, 0xc4},{0x91, 0xd7},{0x91, 0xe8},{0x91, 0x20},{0x92, 0x00},{0x93, 0x06},{0x93, 0xe3},{0x93, 0x02},{0x93, 0x02},{0x93, 0x00},{0x93, 0x04},{0x93, 0x00},{0x93, 0x03},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x96, 0x00},{0x97, 0x08},{0x97, 0x19},{0x97, 0x02},{0x97, 0x0c},{0x97, 0x24},{0x97, 0x30},{0x97, 0x28},{0x97, 0x26},{0x97, 0x02},{0x97, 0x98},{0x97, 0x80},{0x97, 0x00},{0x97, 0x00},{0xc3, 0xef},{0xff, 0x00},{0xba, 0xdc},{0xbb, 0x08},{0xb6, 0x24},{0xb8, 0x33},{0xb7, 0x20},{0xb9, 0x30},{0xb3, 0xb4},{0xb4, 0xca},{0xb5, 0x43},{0xb0, 0x5c},{0xb1, 0x4f},{0xb2, 0x06},{0xc7, 0x00},{0xc6, 0x51},{0xc5, 0x11},{0xc4, 0x9c},{0xbf, 0x00},{0xbc, 0x64},{0xa6, 0x00},{0xa7, 0x1e},{0xa7, 0x6b},{0xa7, 0x47},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x2e},{0xa7, 0x85},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x1b},{0xa7, 0x74},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xc0, 0xc8},{0xc1, 0x96},{0x8c, 0x00},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x5a, 0x50},{0x5b, 0x3c},{0x5c, 0x00},{0xd3, 0x04},{0x7f, 0x00},{0xda, 0x00},{0xe5, 0x1f},{0xe1, 0x67},{0xe0, 0x00},{0xdd, 0x7f},{0x05, 0x00},{0xff, 0x00},{0xe0, 0x04},{0xc0, 0xc8},{0xc1, 0x96},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x57, 0x00},{0x5a, 0x50},{0x5b, 0x3c},{0x5c, 0x00},{0xd3, 0x04},{0xe0, 0x00},{0xFF, 0x00},{0x05, 0x00},{0xDA, 0x08},{0xda, 0x09},{0x98, 0x00},{0x99, 0x00},{0x00, 0x00},{0xff, 0x00},{0xe0, 0x04},{0xc0, 0xc8},{0xc1, 0x96},{0x86, 0x3d},{0x50, 0x89},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x57, 0x00},{0x5a, 0xA0},{0x5b, 0x78},{0x5c, 0x00},{0xd3, 0x02},{0xe0, 0x00},
};/* Initialization sequence for QVGA resolution (320x240) */
const unsigned char OV2640_QVGA[][2]=
{{0xff, 0x00},{0x2c, 0xff},{0x2e, 0xdf},{0xff, 0x01},{0x3c, 0x32},{0x11, 0x00},{0x09, 0x02},{0x04, 0xA8},{0x13, 0xe5},{0x14, 0x48},{0x2c, 0x0c},{0x33, 0x78},{0x3a, 0x33},{0x3b, 0xfB},{0x3e, 0x00},{0x43, 0x11},{0x16, 0x10},{0x4a, 0x81},{0x21, 0x99},{0x24, 0x40},{0x25, 0x38},{0x26, 0x82},{0x5c, 0x00},{0x63, 0x00},{0x46, 0x3f},{0x0c, 0x3c},{0x61, 0x70},{0x62, 0x80},{0x7c, 0x05},{0x20, 0x80},{0x28, 0x30},{0x6c, 0x00},{0x6d, 0x80},{0x6e, 0x00},{0x70, 0x02},{0x71, 0x94},{0x73, 0xc1},{0x3d, 0x34},{0x5a, 0x57},{0x12, 0x00},{0x11, 0x00},{0x17, 0x11},{0x18, 0x75},{0x19, 0x01},{0x1a, 0x97},{0x32, 0x36},{0x03, 0x0f},{0x37, 0x40},{0x4f, 0xbb},{0x50, 0x9c},{0x5a, 0x57},{0x6d, 0x80},{0x6d, 0x38},{0x39, 0x02},{0x35, 0x88},{0x22, 0x0a},{0x37, 0x40},{0x23, 0x00},{0x34, 0xa0},{0x36, 0x1a},{0x06, 0x02},{0x07, 0xc0},{0x0d, 0xb7},{0x0e, 0x01},{0x4c, 0x00},{0xff, 0x00},{0xe5, 0x7f},{0xf9, 0xc0},{0x41, 0x24},{0xe0, 0x14},{0x76, 0xff},{0x33, 0xa0},{0x42, 0x20},{0x43, 0x18},{0x4c, 0x00},{0x87, 0xd0},{0x88, 0x3f},{0xd7, 0x03},{0xd9, 0x10},{0xd3, 0x82},{0xc8, 0x08},{0xc9, 0x80},{0x7d, 0x00},{0x7c, 0x03},{0x7d, 0x48},{0x7c, 0x08},{0x7d, 0x20},{0x7d, 0x10},{0x7d, 0x0e},{0x90, 0x00},{0x91, 0x0e},{0x91, 0x1a},{0x91, 0x31},{0x91, 0x5a},{0x91, 0x69},{0x91, 0x75},{0x91, 0x7e},{0x91, 0x88},{0x91, 0x8f},{0x91, 0x96},{0x91, 0xa3},{0x91, 0xaf},{0x91, 0xc4},{0x91, 0xd7},{0x91, 0xe8},{0x91, 0x20},{0x92, 0x00},{0x93, 0x06},{0x93, 0xe3},{0x93, 0x02},{0x93, 0x02},{0x93, 0x00},{0x93, 0x04},{0x93, 0x00},{0x93, 0x03},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x96, 0x00},{0x97, 0x08},{0x97, 0x19},{0x97, 0x02},{0x97, 0x0c},{0x97, 0x24},{0x97, 0x30},{0x97, 0x28},{0x97, 0x26},{0x97, 0x02},{0x97, 0x98},{0x97, 0x80},{0x97, 0x00},{0x97, 0x00},{0xc3, 0xef},{0xff, 0x00},{0xba, 0xdc},{0xbb, 0x08},{0xb6, 0x24},{0xb8, 0x33},{0xb7, 0x20},{0xb9, 0x30},{0xb3, 0xb4},{0xb4, 0xca},{0xb5, 0x43},{0xb0, 0x5c},{0xb1, 0x4f},{0xb2, 0x06},{0xc7, 0x00},{0xc6, 0x51},{0xc5, 0x11},{0xc4, 0x9c},{0xbf, 0x00},{0xbc, 0x64},{0xa6, 0x00},{0xa7, 0x1e},{0xa7, 0x6b},{0xa7, 0x47},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x2e},{0xa7, 0x85},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x1b},{0xa7, 0x74},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xc0, 0xc8},{0xc1, 0x96},{0x8c, 0x00},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x5a, 0x50},{0x5b, 0x3c},{0x5c, 0x00},{0xd3, 0x04},{0x7f, 0x00},{0xda, 0x00},{0xe5, 0x1f},{0xe1, 0x67},{0xe0, 0x00},{0xdd, 0x7f},{0x05, 0x00},{0xff, 0x00},{0xe0, 0x04},{0xc0, 0xc8},{0xc1, 0x96},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x57, 0x00},{0x5a, 0x50},{0x5b, 0x3C},{0x5c, 0x00},{0xd3, 0x08},{0xe0, 0x00},{0xFF, 0x00},{0x05, 0x00},{0xDA, 0x08},{0xda, 0x09},{0x98, 0x00},{0x99, 0x00},{0x00, 0x00},
};/* Initialization sequence for QQVGA resolution (160x120) */
const char OV2640_QQVGA[][2]=
{{0xff, 0x00},{0x2c, 0xff},{0x2e, 0xdf},{0xff, 0x01},{0x3c, 0x32},{0x11, 0x00},{0x09, 0x02},{0x04, 0xA8},{0x13, 0xe5},{0x14, 0x48},{0x2c, 0x0c},{0x33, 0x78},{0x3a, 0x33},{0x3b, 0xfB},{0x3e, 0x00},{0x43, 0x11},{0x16, 0x10},{0x4a, 0x81},{0x21, 0x99},{0x24, 0x40},{0x25, 0x38},{0x26, 0x82},{0x5c, 0x00},{0x63, 0x00},{0x46, 0x3f},{0x0c, 0x3c},{0x61, 0x70},{0x62, 0x80},{0x7c, 0x05},{0x20, 0x80},{0x28, 0x30},{0x6c, 0x00},{0x6d, 0x80},{0x6e, 0x00},{0x70, 0x02},{0x71, 0x94},{0x73, 0xc1},{0x3d, 0x34},{0x5a, 0x57},{0x12, 0x00},{0x11, 0x00},{0x17, 0x11},{0x18, 0x75},{0x19, 0x01},{0x1a, 0x97},{0x32, 0x36},{0x03, 0x0f},{0x37, 0x40},{0x4f, 0xbb},{0x50, 0x9c},{0x5a, 0x57},{0x6d, 0x80},{0x6d, 0x38},{0x39, 0x02},{0x35, 0x88},{0x22, 0x0a},{0x37, 0x40},{0x23, 0x00},{0x34, 0xa0},{0x36, 0x1a},{0x06, 0x02},{0x07, 0xc0},{0x0d, 0xb7},{0x0e, 0x01},{0x4c, 0x00},{0xff, 0x00},{0xe5, 0x7f},{0xf9, 0xc0},{0x41, 0x24},{0xe0, 0x14},{0x76, 0xff},{0x33, 0xa0},{0x42, 0x20},{0x43, 0x18},{0x4c, 0x00},{0x87, 0xd0},{0x88, 0x3f},{0xd7, 0x03},{0xd9, 0x10},{0xd3, 0x82},{0xc8, 0x08},{0xc9, 0x80},{0x7d, 0x00},{0x7c, 0x03},{0x7d, 0x48},{0x7c, 0x08},{0x7d, 0x20},{0x7d, 0x10},{0x7d, 0x0e},{0x90, 0x00},{0x91, 0x0e},{0x91, 0x1a},{0x91, 0x31},{0x91, 0x5a},{0x91, 0x69},{0x91, 0x75},{0x91, 0x7e},{0x91, 0x88},{0x91, 0x8f},{0x91, 0x96},{0x91, 0xa3},{0x91, 0xaf},{0x91, 0xc4},{0x91, 0xd7},{0x91, 0xe8},{0x91, 0x20},{0x92, 0x00},{0x93, 0x06},{0x93, 0xe3},{0x93, 0x02},{0x93, 0x02},{0x93, 0x00},{0x93, 0x04},{0x93, 0x00},{0x93, 0x03},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x93, 0x00},{0x96, 0x00},{0x97, 0x08},{0x97, 0x19},{0x97, 0x02},{0x97, 0x0c},{0x97, 0x24},{0x97, 0x30},{0x97, 0x28},{0x97, 0x26},{0x97, 0x02},{0x97, 0x98},{0x97, 0x80},{0x97, 0x00},{0x97, 0x00},{0xc3, 0xef},{0xff, 0x00},{0xba, 0xdc},{0xbb, 0x08},{0xb6, 0x24},{0xb8, 0x33},{0xb7, 0x20},{0xb9, 0x30},{0xb3, 0xb4},{0xb4, 0xca},{0xb5, 0x43},{0xb0, 0x5c},{0xb1, 0x4f},{0xb2, 0x06},{0xc7, 0x00},{0xc6, 0x51},{0xc5, 0x11},{0xc4, 0x9c},{0xbf, 0x00},{0xbc, 0x64},{0xa6, 0x00},{0xa7, 0x1e},{0xa7, 0x6b},{0xa7, 0x47},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x2e},{0xa7, 0x85},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xa7, 0x1b},{0xa7, 0x74},{0xa7, 0x42},{0xa7, 0x33},{0xa7, 0x00},{0xa7, 0x23},{0xc0, 0xc8},{0xc1, 0x96},{0x8c, 0x00},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x5a, 0x50},{0x5b, 0x3c},{0x5c, 0x00},{0xd3, 0x04},{0x7f, 0x00},{0xda, 0x00},{0xe5, 0x1f},{0xe1, 0x67},{0xe0, 0x00},{0xdd, 0x7f},{0x05, 0x00},{0xff, 0x00},{0xe0, 0x04},{0xc0, 0xc8},{0xc1, 0x96},{0x86, 0x3d},{0x50, 0x92},{0x51, 0x90},{0x52, 0x2c},{0x53, 0x00},{0x54, 0x00},{0x55, 0x88},{0x57, 0x00},{0x5a, 0x28}, {0x5b, 0x1E}, {0x5c, 0x00},{0xd3, 0x08},{0xe0, 0x00},{0xFF, 0x00},{0x05, 0x00},{0xDA, 0x08},{0xda, 0x09},{0x98, 0x00},{0x99, 0x00},{0x00, 0x00},
};
/* JPG 320x240 */
const unsigned char OV2640_320x240_JPEG[][2]=
{{0xff, 0x01},{0x11, 0x01},{0x12, 0x00}, // Bit[6:4]: Resolution selection//0x02����{0x17, 0x11}, // HREFST[10:3]{0x18, 0x75}, // HREFEND[10:3]{0x32, 0x36}, // Bit[5:3]: HREFEND[2:0]; Bit[2:0]: HREFST[2:0]{0x19, 0x01}, // VSTRT[9:2]{0x1a, 0x97}, // VEND[9:2]{0x03, 0x0f}, // Bit[3:2]: VEND[1:0]; Bit[1:0]: VSTRT[1:0]{0x37, 0x40},{0x4f, 0xbb},{0x50, 0x9c},{0x5a, 0x57},{0x6d, 0x80},{0x3d, 0x34},{0x39, 0x02},{0x35, 0x88},{0x22, 0x0a},{0x37, 0x40},{0x34, 0xa0},{0x06, 0x02},{0x0d, 0xb7},{0x0e, 0x01},/*//176*1440xff, 0x00,0xc0, 0xC8,0xc1, 0x96,0x8c, 0x00,0x86, 0x3D,0x50, 0x9B,0x51, 0x90,0x52, 0x2C,0x53, 0x00,0x54, 0x00,0x55, 0x88,0x5a, 0x2C,0x5b, 0x24,0x5c, 0x00,0xd3, 0x7F,*/
/*//320*2400xff, 0x00,0xe0, 0x04,0xc0, 0xc8,0xc1, 0x96,0x86, 0x3d,0x50, 0x92,0x51, 0x90,0x52, 0x2c,0x53, 0x00,0x54, 0x00,0x55, 0x88,0x57, 0x00,0x5a, 0x50,0x5b, 0x3c,0x5c, 0x00,0xd3, 0x7F,0xe0, 0x00,///
*//*
0xff, 0x00,0xe0, 0x04,0xc0, 0xc8,0xc1, 0x96,0x86, 0x35,0x50, 0x92,0x51, 0x90,0x52, 0x2c,0x53, 0x00,0x54, 0x00,0x55, 0x88,0x57, 0x00,0x5a, 0x58,0x5b, 0x48,0x5c, 0x00,0xd3, 0x08,0xe0, 0x00
*///640*480 0xff, 0x00,0xe0, 0x04,0xc0, 0xc8,0xc1, 0x96,0x86, 0x3d,0x50, 0x89,0x51, 0x90,0x52, 0x2c,0x53, 0x00,0x54, 0x00,0x55, 0x88,0x57, 0x00,0x5a, 0xa0,0x5b, 0x78,0x5c, 0x00,0xd3, 0x04,0xe0, 0x00///800*600
// {0xff, 0x00},
// {0xe0, 0x04},
// {0xc0, 0xc8},
// {0xc1, 0x96},
// {0x86, 0x35},
// {0x50, 0x89},
// {0x51, 0x90},
// {0x52, 0x2c},
// {0x53, 0x00},
// {0x54, 0x00},
// {0x55, 0x88},
// {0x57, 0x00},
// {0x5a, 0xc8},
// {0x5b, 0x96},
// {0x5c, 0x00},
// {0xd3, 0x02},
// {0xe0, 0x00},//1280*1024// 0xff, 0x00,
// 0xe0, 0x04,
// 0xc0, 0xc8,
// 0xc1, 0x96,
// 0x86, 0x3d,
// 0x50, 0x00,
// 0x51, 0x90,
// 0x52, 0x2c,
// 0x53, 0x00,
// 0x54, 0x00,
// 0x55, 0x88,
// 0x57, 0x00,
// 0x5a, 0x40,
// 0x5b, 0xf0,
// 0x5c, 0x01,
// 0xd3, 0x02,
// 0xe0, 0x00///1600*1200
/*0xff, 0x00,0xe0, 0x04,0xc0, 0xc8,0xc1, 0x96,0x86, 0x3d,0x50, 0x00,0x51, 0x90,0x52, 0x2c,0x53, 0x00,0x54, 0x00,0x55, 0x88,0x57, 0x00,0x5a, 0x90,0x5b, 0x2C,0x5c, 0x05,//bit2->1;bit[1:0]->10xd3, 0x00,0xe0, 0x00
*////1024*768
// 0xff, 0x00,
// 0xc0, 0xC8,
// 0xc1, 0x96,
// 0x8c, 0x00,
// 0x86, 0x3D,
// 0x50, 0x00,
// 0x51, 0x90,
// 0x52, 0x2C,
// 0x53, 0x00,
// 0x54, 0x00,
// 0x55, 0x88,
// 0x5a, 0x00,
// 0x5b, 0xC0,
// 0x5c, 0x01,
// 0xd3, 0x02
};const unsigned char OV2640_JPEG_INIT[][2]=
{0xff, 0x00,0x2c, 0xff,0x2e, 0xdf,0xff, 0x01,0x3c, 0x32,0x11, 0x00,0x09, 0x02,0x04, 0x28,0x13, 0xe5,0x14, 0x48,0x2c, 0x0c,0x33, 0x78,0x3a, 0x33,0x3b, 0xfB,0x3e, 0x00,0x43, 0x11,0x16, 0x10,0x39, 0x92,0x35, 0xda,0x22, 0x1a,0x37, 0xc3,0x23, 0x00,0x34, 0xc0,0x36, 0x1a,0x06, 0x88,0x07, 0xc0,0x0d, 0x87,0x0e, 0x41,0x4c, 0x00,0x48, 0x00,0x5B, 0x00,0x42, 0x03,0x4a, 0x81,0x21, 0x99,0x24, 0x40,0x25, 0x38,0x26, 0x82,0x5c, 0x00,0x63, 0x00,0x61, 0x70,0x62, 0x80,0x7c, 0x05,0x20, 0x80,0x28, 0x30,0x6c, 0x00,0x6d, 0x80,0x6e, 0x00,0x70, 0x02,0x71, 0x94,0x73, 0xc1,0x12, 0x40,//0x400x17, 0x11,0x18, 0x43,0x19, 0x00,0x1a, 0x4b,0x32, 0x09,0x37, 0xc0,0x4f, 0x60,0x50, 0xa8,0x6d, 0x00,0x3d, 0x38,0x46, 0x3f,0x4f, 0x60,0x0c, 0x3c,0xff, 0x00,0xe5, 0x7f,0xf9, 0xc0,0x41, 0x24,0xe0, 0x14,0x76, 0xff,0x33, 0xa0,0x42, 0x20,0x43, 0x18,0x4c, 0x00,0x87, 0xd5,0x88, 0x3f,0xd7, 0x03,0xd9, 0x10,0xd3, 0x82,0xc8, 0x08,0xc9, 0x80,0x7c, 0x00,0x7d, 0x00,0x7c, 0x03,0x7d, 0x48,0x7d, 0x48,0x7c, 0x08,0x7d, 0x20,0x7d, 0x10,0x7d, 0x0e,0x90, 0x00,0x91, 0x0e,0x91, 0x1a,0x91, 0x31,0x91, 0x5a,0x91, 0x69,0x91, 0x75,0x91, 0x7e,0x91, 0x88,0x91, 0x8f,0x91, 0x96,0x91, 0xa3,0x91, 0xaf,0x91, 0xc4,0x91, 0xd7,0x91, 0xe8,0x91, 0x20,0x92, 0x00,0x93, 0x06,0x93, 0xe3,0x93, 0x05,0x93, 0x05,0x93, 0x00,0x93, 0x04,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x96, 0x00,0x97, 0x08,0x97, 0x19,0x97, 0x02,0x97, 0x0c,0x97, 0x24,0x97, 0x30,0x97, 0x28,0x97, 0x26,0x97, 0x02,0x97, 0x98,0x97, 0x80,0x97, 0x00,0x97, 0x00,0xc3, 0xed,0xa4, 0x00,0xa8, 0x00,0xc5, 0x11,0xc6, 0x51,0xbf, 0x80,0xc7, 0x10,0xb6, 0x66,0xb8, 0xA5,0xb7, 0x64,0xb9, 0x7C,0xb3, 0xaf,0xb4, 0x97,0xb5, 0xFF,0xb0, 0xC5,0xb1, 0x94,0xb2, 0x0f,0xc4, 0x5c,0xc0, 0x64,0xc1, 0x4B,0x8c, 0x00,0x86, 0x3D,0x50, 0x00,0x51, 0xC8,0x52, 0x96,0x53, 0x00,0x54, 0x00,0x55, 0x00,0x5a, 0xC8,0x5b, 0x96,0x5c, 0x00,0xd3, 0x7f,0xc3, 0xed,0x7f, 0x00,0xda, 0x00,0xe5, 0x1f,0xe1, 0x67,0xe0, 0x00,0xdd, 0x7f,0x05, 0x00,0x12, 0x40,//0x400xd3, 0x7f,0xc0, 0x16,0xC1, 0x12,0x8c, 0x00,0x86, 0x3d,0x50, 0x00,0x51, 0x2C,0x52, 0x24,0x53, 0x00,0x54, 0x00,0x55, 0x00,0x5A, 0x2c,0x5b, 0x24,0x5c, 0x00,
};const unsigned char OV2640_YUV422[][2]=
{0xFF, 0x00,0x05, 0x00,0xDA, 0x10,0xD7, 0x03,0xDF, 0x00,0x33, 0x80,0x3C, 0x40,0xe1, 0x77,0x00, 0x00,
};const unsigned char OV2640_JPEG[][2]=
{0xe0, 0x14,0xe1, 0x77,0xe5, 0x1f,0xd7, 0x03,0xda, 0x10,0xe0, 0x00,0xFF, 0x01,0x04, 0x08,
};/*** @}*//** @defgroup OV2640_Private_Functions* @{*/ /*** @brief Camera writes single data.* @param Addr: I2C address* @param Reg: Register address * @param Value: Data to be written* @retval None*/
void DCMI_SingleRandomWrite(uint8_t Reg, uint8_t Data)
{HAL_I2C_Mem_Write(&hi2c2, CAMERA_I2C_ADDRESS, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, &Data, 1, 100);
}
void CAMERA_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
{HAL_I2C_Mem_Write(&hi2c2, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, 100);
}/*** @brief Camera reads single data.* @param Addr: I2C address* @param Reg: Register address * @retval Read data*/
uint8_t CAMERA_IO_Read(uint8_t Addr, uint8_t Reg)
{uint8_t Value = 0;HAL_I2C_Mem_Read(&hi2c2, Addr, Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, 1000);return Value;
}/*** @brief Initializes the OV2640 CAMERA component.* @param DeviceAddr: Device address on communication Bus.* @param resolution: Camera resolution* @retval None*/
//void ov2640_Init(uint16_t DeviceAddr, uint32_t resolution)
//{
// uint32_t index;
//
// /* Prepare the camera to be configured */
// CAMERA_IO_Write(DeviceAddr, OV2640_DSP_RA_DLMT, 0x01);
// CAMERA_IO_Write(DeviceAddr, OV2640_SENSOR_COM7, 0x80);
// HAL_Delay(200);//
// /* Initialize OV2640 */
// switch (resolution)
// {
// case CAMERA_R160x120:
// {
// for(index=0; index<(sizeof(OV2640_QQVGA)/2); index++)
// {
// CAMERA_IO_Write(DeviceAddr, OV2640_QQVGA[index][0], OV2640_QQVGA[index][1]);
// HAL_Delay(1);
// }
// break;
// }
// case CAMERA_R320x240:
// {
// for(index=0; index<(sizeof(OV2640_320x240_JPEG)/2); index++)
// {
// CAMERA_IO_Write(DeviceAddr, OV2640_320x240_JPEG[index][0], OV2640_320x240_JPEG[index][1]);
// HAL_Delay(1);
// }
// break;
// }
// case CAMERA_R480x272:
// {
// for(index=0; index<(sizeof(OV2640_480x272)/2); index++)
// {
// CAMERA_IO_Write(DeviceAddr, OV2640_480x272[index][0], OV2640_480x272[index][1]);
// HAL_Delay(2);
// }
// break;
// }
// case CAMERA_R640x480:
// {
// for(index=0; index<(sizeof(OV2640_VGA)/2); index++)
// {
// CAMERA_IO_Write(DeviceAddr, OV2640_VGA[index][0], OV2640_VGA[index][1]);
// HAL_Delay(2);
// }
// break;
// }
// default:
// {
// break;
// }
// }
// /* Prepare the sensor to read the Camera ID */
// CAMERA_IO_Write(DeviceAddr, OV2640_DSP_RA_DLMT, 0x01);
//
// /* Get the camera ID */
// if(CAMERA_IO_Read(DeviceAddr, OV2640_SENSOR_PIDH) == OV2640_ID)
// {
// //printf(" OV2640 ID : 0x%x\r\n",OV2640_ID);
// }
// else
// {
// printf(" OV2640 ID is Error!\r\n");
// }
//}/*** @brief Configures the OV2640 camera feature.* @param DeviceAddr: Device address on communication Bus.* @param feature: Camera feature to be configured* @param value: Value to be configured* @param brightness_value: Brightness value to be configured* @retval None*/
//void ov2640_Config(uint16_t DeviceAddr, uint32_t feature, uint32_t value, uint32_t brightness_value)
//{
// uint8_t value1, value2;
// uint32_t value_tmp;
// uint32_t br_value;
//
// /* Convert the input value into ov2640 parameters */
// value_tmp = ov2640_ConvertValue(feature, value);
// br_value = ov2640_ConvertValue(CAMERA_CONTRAST_BRIGHTNESS, brightness_value);
//
// switch(feature)
// {
// case CAMERA_BLACK_WHITE:
// {
// CAMERA_IO_Write(DeviceAddr, 0xff, 0x00);
// CAMERA_IO_Write(DeviceAddr, 0x7c, 0x00);
// CAMERA_IO_Write(DeviceAddr, 0x7d, value_tmp);
// CAMERA_IO_Write(DeviceAddr, 0x7c, 0x05);
// CAMERA_IO_Write(DeviceAddr, 0x7d, 0x80);
// CAMERA_IO_Write(DeviceAddr, 0x7d, 0x80);
// break;
// }
// case CAMERA_CONTRAST_BRIGHTNESS:
// {
// value1 = (uint8_t)(value_tmp);
// value2 = (uint8_t)(value_tmp >> 8);
// CAMERA_IO_Write(DeviceAddr, 0xff, 0x00);
// CAMERA_IO_Write(DeviceAddr, 0x7c, 0x00);
// CAMERA_IO_Write(DeviceAddr, 0x7d, 0x04);
// CAMERA_IO_Write(DeviceAddr, 0x7c, 0x07);
// CAMERA_IO_Write(DeviceAddr, 0x7d, br_value);
// CAMERA_IO_Write(DeviceAddr, 0x7d, value1);
// CAMERA_IO_Write(DeviceAddr, 0x7d, value2);
// CAMERA_IO_Write(DeviceAddr, 0x7d, 0x06);
// break;
// }
// case CAMERA_COLOR_EFFECT:
// {
// value1 = (uint8_t)(value_tmp);
// value2 = (uint8_t)(value_tmp >> 8);
// CAMERA_IO_Write(DeviceAddr, 0xff, 0x00);
// CAMERA_IO_Write(DeviceAddr, 0x7c, 0x00);
// CAMERA_IO_Write(DeviceAddr, 0x7d, 0x18);
// CAMERA_IO_Write(DeviceAddr, 0x7c, 0x05);
// CAMERA_IO_Write(DeviceAddr, 0x7d, value1);
// CAMERA_IO_Write(DeviceAddr, 0x7d, value2);
// break;
// }
// default:
// {
// break;
// }
// }
//}void OV2640_JPEGConfig(ImageFormat_TypeDef ImageFormat)
{uint32_t i;// ov2640 resetDCMI_SingleRandomWrite(OV2640_DSP_RA_DLMT, 0x01);DCMI_SingleRandomWrite(OV2640_SENSOR_COM7, 0x80);HAL_Delay(200);//for(i=0; i<(sizeof(OV2640_JPEG_INIT)/2); i++){DCMI_SingleRandomWrite(OV2640_JPEG_INIT[i][0], OV2640_JPEG_INIT[i][1]);HAL_Delay(1);}for(i=0; i<(sizeof(OV2640_YUV422)/2); i++){DCMI_SingleRandomWrite(OV2640_YUV422[i][0], OV2640_YUV422[i][1]);HAL_Delay(1);}DCMI_SingleRandomWrite(0xff, 0x01);DCMI_SingleRandomWrite(0x15, 0x00);for(i=0; i<(sizeof(OV2640_JPEG)/2); i++){DCMI_SingleRandomWrite(OV2640_JPEG[i][0], OV2640_JPEG[i][1]);HAL_Delay(1);}HAL_Delay(100);for(i=0; i<(sizeof(OV2640_320x240_JPEG)/2); i++){DCMI_SingleRandomWrite(OV2640_320x240_JPEG[i][0], OV2640_320x240_JPEG[i][1]);HAL_Delay(1);}}
void OV2640_Init(void)
{uint32_t i;DCMI_SingleRandomWrite(OV2640_DSP_RA_DLMT, 0x01); //操作sensor寄存器DCMI_SingleRandomWrite(OV2640_SENSOR_COM7, 0x80); //软复位OV2640HAL_Delay(200);//初始化 OV2640,采用SXGA分辨率(1600*1200)for(i=0;i<sizeof(ov2640_uxga_init_reg_tbl)/2;i++){DCMI_SingleRandomWrite(ov2640_uxga_init_reg_tbl[i][0],ov2640_uxga_init_reg_tbl[i][1]);HAL_Delay(1);}
}
void OV2640_RGB565_Mode(void)
{uint16_t i=0;//设置:RGB565输出for(i=0;i<(sizeof(ov2640_rgb565_reg_tbl)/2);i++){DCMI_SingleRandomWrite(ov2640_rgb565_reg_tbl[i][0],ov2640_rgb565_reg_tbl[i][1]);HAL_Delay(1);}
}
void OV2640_JPEG_Mode(void)
{uint16_t i=0;//设置:YUV422格式for(i=0;i<(sizeof(ov2640_yuv422_reg_tbl)/2);i++){DCMI_SingleRandomWrite(ov2640_yuv422_reg_tbl[i][0],ov2640_yuv422_reg_tbl[i][1]);HAL_Delay(1);}//设置:输出JPEG数据for(i=0;i<(sizeof(ov2640_jpeg_reg_tbl)/2);i++){DCMI_SingleRandomWrite(ov2640_jpeg_reg_tbl[i][0],ov2640_jpeg_reg_tbl[i][1]);HAL_Delay(1);}
}
//设置图像输出大小
//OV2640输出图像的大小(分辨率),完全由该函数确定
//width,height:宽度(对应:horizontal)和高度(对应:vertical),width和height必须是4的倍数
//返回值:0,设置成功
// 其他,设置失败
uint8_t OV2640_OutSize_Set(uint16_t width,uint16_t height)
{uint16_t outh;uint16_t outw;uint8_t temp;if(width%4)return 1;if(height%4)return 2;outw=width/4;outh=height/4;DCMI_SingleRandomWrite(0XFF,0X00);DCMI_SingleRandomWrite(0XE0,0X04);DCMI_SingleRandomWrite(0X5A,outw&0XFF); //设置OUTW的低八位DCMI_SingleRandomWrite(0X5B,outh&0XFF); //设置OUTH的低八位temp=(outw>>8)&0X03;temp|=(outh>>6)&0X04;DCMI_SingleRandomWrite(0X5C,temp); //设置OUTH/OUTW的高位DCMI_SingleRandomWrite(0XE0,0X00);return 0;
}
void SCCB_WriteRegs(const uint8_t* pbuf)
{while(1){if((*pbuf == 0) && (*(pbuf + 1) == 0)){break;}else{DCMI_SingleRandomWrite(*pbuf++, *pbuf++);}}
}const static uint8_t OV2640_AUTOEXPOSURE_LEVEL0[]=
{0xFF, 0x01, 0xff,0x24, 0x20, 0xff,0x25, 0x18, 0xff,0x26, 0x60, 0xff,0x00, 0x00, 0x00
};const static uint8_t OV2640_AUTOEXPOSURE_LEVEL1[]=
{0xFF, 0x01, 0xff,0x24, 0x34, 0xff,0x25, 0x1c, 0xff,0x26, 0x70, 0xff,0x00, 0x00, 0x00
};
const static uint8_t OV2640_AUTOEXPOSURE_LEVEL2[]=
{0xFF, 0x01, 0xff,0x24, 0x3e, 0xff,0x25, 0x38, 0xff,0x26, 0x81, 0xff,0x00, 0x00, 0x00
};
const static uint8_t OV2640_AUTOEXPOSURE_LEVEL3[]=
{0xFF, 0x01, 0xff,0x24, 0x48, 0xff,0x25, 0x40, 0xff,0x26, 0x81, 0xff,0x00, 0x00, 0x00
};
const static uint8_t OV2640_AUTOEXPOSURE_LEVEL4[]=
{0xFF, 0x01, 0xff,0x24, 0x58, 0xff,0x25, 0x50, 0xff,0x26, 0x92, 0xff,0x00, 0x00, 0x00
};void OV2640_AutoExposure(uint8_t level)
{switch(level){case 0:SCCB_WriteRegs(OV2640_AUTOEXPOSURE_LEVEL0);break;case 1:SCCB_WriteRegs(OV2640_AUTOEXPOSURE_LEVEL1);break;case 2:SCCB_WriteRegs(OV2640_AUTOEXPOSURE_LEVEL2);break;case 3:SCCB_WriteRegs(OV2640_AUTOEXPOSURE_LEVEL3);break;case 4:SCCB_WriteRegs(OV2640_AUTOEXPOSURE_LEVEL4);break;default:SCCB_WriteRegs(OV2640_AUTOEXPOSURE_LEVEL0);break;}}void OV2640_BrightnessConfig(uint8_t Brightness)
{DCMI_SingleRandomWrite(0xff, 0x00);DCMI_SingleRandomWrite(0x7c, 0x00);DCMI_SingleRandomWrite(0x7d, 0x04);DCMI_SingleRandomWrite(0x7c, 0x09);DCMI_SingleRandomWrite(0x7d, Brightness);DCMI_SingleRandomWrite(0x7d, 0x00);
}/*** @}*/ /*** @}*/ /*** @}*/ /*** @}*/ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
4.2 ov2640.h
/********************************************************************************* @file ov2640.h* @author MCD Application Team* @version V1.0.2* @date 02-December-2014* @brief This file contains all the functions prototypes for the ov2640.c* driver.******************************************************************************* @attention** <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>** Redistribution and use in source and binary forms, with or without modification,* are permitted provided that the following conditions are met:* 1. Redistributions of source code must retain the above copyright notice,* this list of conditions and the following disclaimer.* 2. Redistributions in binary form must reproduce the above copyright notice,* this list of conditions and the following disclaimer in the documentation* and/or other materials provided with the distribution.* 3. Neither the name of STMicroelectronics nor the names of its contributors* may be used to endorse or promote products derived from this software* without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.********************************************************************************/ /* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __OV2640_H
#define __OV2640_H#ifdef __cplusplusextern "C" {
#endif /* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
//#include "../BSP/camera.h"/** @addtogroup BSP* @{*/ /** @addtogroup Components* @{*/ /** @addtogroup ov2640* @{*//** @defgroup OV2640_Exported_Types* @{*/
typedef enum
{BMP_QQVGA = 0x00, /* BMP Image QQVGA 160x120 Size */BMP_QVGA = 0x01, /* BMP Image QVGA 320x240 Size */JPEG_160x120 = 0x02, /* JPEG Image 160x120 Size */JPEG_176x144 = 0x03, /* JPEG Image 176x144 Size */JPEG_320x240 = 0x04, /* JPEG Image 320x240 Size */JPEG_352x288 = 0x05 /* JPEG Image 352x288 Size */
}ImageFormat_TypeDef;/* Exported types ------------------------------------------------------------*/
typedef struct
{uint8_t Manufacturer_ID1;uint8_t Manufacturer_ID2;uint8_t Version;uint8_t PID;
}OV2640_IDTypeDef;
/*** @}*/ /** @defgroup OV2640_Exported_Constants* @{*/
#define CAMERA_I2C_ADDRESS 0x60
/** * @brief OV2640 ID */
#define OV2640_ID 0x26
/** * @brief OV2640 Registers */
/* OV2640 Registers definition when DSP bank selected (0xFF = 0x00) */
#define OV2640_DSP_R_BYPASS 0x05
#define OV2640_DSP_Qs 0x44
#define OV2640_DSP_CTRL 0x50
#define OV2640_DSP_HSIZE1 0x51
#define OV2640_DSP_VSIZE1 0x52
#define OV2640_DSP_XOFFL 0x53
#define OV2640_DSP_YOFFL 0x54
#define OV2640_DSP_VHYX 0x55
#define OV2640_DSP_DPRP 0x56
#define OV2640_DSP_TEST 0x57
#define OV2640_DSP_ZMOW 0x5A
#define OV2640_DSP_ZMOH 0x5B
#define OV2640_DSP_ZMHH 0x5C
#define OV2640_DSP_BPADDR 0x7C
#define OV2640_DSP_BPDATA 0x7D
#define OV2640_DSP_CTRL2 0x86
#define OV2640_DSP_CTRL3 0x87
#define OV2640_DSP_SIZEL 0x8C
#define OV2640_DSP_HSIZE2 0xC0
#define OV2640_DSP_VSIZE2 0xC1
#define OV2640_DSP_CTRL0 0xC2
#define OV2640_DSP_CTRL1 0xC3
#define OV2640_DSP_R_DVP_SP 0xD3
#define OV2640_DSP_IMAGE_MODE 0xDA
#define OV2640_DSP_RESET 0xE0
#define OV2640_DSP_MS_SP 0xF0
#define OV2640_DSP_SS_ID 0x7F
#define OV2640_DSP_SS_CTRL 0xF8
#define OV2640_DSP_MC_BIST 0xF9
#define OV2640_DSP_MC_AL 0xFA
#define OV2640_DSP_MC_AH 0xFB
#define OV2640_DSP_MC_D 0xFC
#define OV2640_DSP_P_STATUS 0xFE
#define OV2640_DSP_RA_DLMT 0xFF/* OV2640 Registers definition when sensor bank selected (0xFF = 0x01) */
#define OV2640_SENSOR_GAIN 0x00
#define OV2640_SENSOR_COM1 0x03
#define OV2640_SENSOR_REG04 0x04
#define OV2640_SENSOR_REG08 0x08
#define OV2640_SENSOR_COM2 0x09
#define OV2640_SENSOR_PIDH 0x0A
#define OV2640_SENSOR_PIDL 0x0B
#define OV2640_SENSOR_COM3 0x0C
#define OV2640_SENSOR_COM4 0x0D
#define OV2640_SENSOR_AEC 0x10
#define OV2640_SENSOR_CLKRC 0x11
#define OV2640_SENSOR_COM7 0x12
#define OV2640_SENSOR_COM8 0x13
#define OV2640_SENSOR_COM9 0x14
#define OV2640_SENSOR_COM10 0x15
#define OV2640_SENSOR_HREFST 0x17
#define OV2640_SENSOR_HREFEND 0x18
#define OV2640_SENSOR_VSTART 0x19
#define OV2640_SENSOR_VEND 0x1A
#define OV2640_SENSOR_MIDH 0x1C
#define OV2640_SENSOR_MIDL 0x1D
#define OV2640_SENSOR_AEW 0x24
#define OV2640_SENSOR_AEB 0x25
#define OV2640_SENSOR_W 0x26
#define OV2640_SENSOR_REG2A 0x2A
#define OV2640_SENSOR_FRARL 0x2B
#define OV2640_SENSOR_ADDVSL 0x2D
#define OV2640_SENSOR_ADDVHS 0x2E
#define OV2640_SENSOR_YAVG 0x2F
#define OV2640_SENSOR_REG32 0x32
#define OV2640_SENSOR_ARCOM2 0x34
#define OV2640_SENSOR_REG45 0x45
#define OV2640_SENSOR_FLL 0x46
#define OV2640_SENSOR_FLH 0x47
#define OV2640_SENSOR_COM19 0x48
#define OV2640_SENSOR_ZOOMS 0x49
#define OV2640_SENSOR_COM22 0x4B
#define OV2640_SENSOR_COM25 0x4E
#define OV2640_SENSOR_BD50 0x4F
#define OV2640_SENSOR_BD60 0x50
#define OV2640_SENSOR_REG5D 0x5D
#define OV2640_SENSOR_REG5E 0x5E
#define OV2640_SENSOR_REG5F 0x5F
#define OV2640_SENSOR_REG60 0x60
#define OV2640_SENSOR_HISTO_LOW 0x61
#define OV2640_SENSOR_HISTO_HIGH 0x62 /** * @brief OV2640 Features Parameters */
#define OV2640_BRIGHTNESS_LEVEL0 0x40 /* Brightness level -2 */
#define OV2640_BRIGHTNESS_LEVEL1 0x30 /* Brightness level -1 */
#define OV2640_BRIGHTNESS_LEVEL2 0x20 /* Brightness level 0 */
#define OV2640_BRIGHTNESS_LEVEL3 0x10 /* Brightness level +1 */
#define OV2640_BRIGHTNESS_LEVEL4 0x00 /* Brightness level +2 */#define OV2640_BLACK_WHITE_BW 0x18 /* Black and white effect */
#define OV2640_BLACK_WHITE_NEGATIVE 0x40 /* Negative effect */
#define OV2640_BLACK_WHITE_BW_NEGATIVE 0x58 /* BW and Negative effect */
#define OV2640_BLACK_WHITE_NORMAL 0x00 /* Normal effect */#define OV2640_CONTRAST_LEVEL0 0x3418 /* Contrast level -2 */
#define OV2640_CONTRAST_LEVEL1 0x2A1C /* Contrast level -2 */
#define OV2640_CONTRAST_LEVEL2 0x2020 /* Contrast level -2 */
#define OV2640_CONTRAST_LEVEL3 0x1624 /* Contrast level -2 */
#define OV2640_CONTRAST_LEVEL4 0x0C28 /* Contrast level -2 */#define OV2640_COLOR_EFFECT_ANTIQUE 0xA640 /* Antique effect */
#define OV2640_COLOR_EFFECT_BLUE 0x40A0 /* Blue effect */
#define OV2640_COLOR_EFFECT_GREEN 0x4040 /* Green effect */
#define OV2640_COLOR_EFFECT_RED 0xC040 /* Red effect */
/*** @}*//** @defgroup OV2640_Exported_Functions* @{*/ void ov2640_Config(uint16_t DeviceAddr, uint32_t feature, uint32_t value, uint32_t BR_value);
void OV2640_JPEGConfig(ImageFormat_TypeDef ImageFormat);
void OV2640_BrightnessConfig(uint8_t Brightness);
void OV2640_AutoExposure(uint8_t level);void OV2640_Init(void);
void OV2640_RGB565_Mode(void);
void OV2640_JPEG_Mode(void);
uint8_t OV2640_OutSize_Set(uint16_t width,uint16_t height);/* I2C_HandleTypeDef structure */
extern I2C_HandleTypeDef hi2c2;/*** @}*/
#ifdef __cplusplus
}
#endif#endif /* __OV2640_H */
/*** @}*/ /*** @}*/ /*** @}*/ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
4.3 ov2640cfg.h
#ifndef _OV2640CFG_H
#define _OV2640CFG_H
#include "ov2640.h" //OV2640 UXG Register configuration
//frame rate: 15
//UXGA(1600*1200)
const uint8_t ov2640_uxga_init_reg_tbl[][2]=
{ 0xff, 0x00,0x2c, 0xff,0x2e, 0xdf,0xff, 0x01,0x3c, 0x32,//0x11, 0x00,0x09, 0x02,0x04, 0xD8,//horizon mirror, vertical rotate0x13, 0xe5,0x14, 0x48,0x2c, 0x0c,0x33, 0x78,0x3a, 0x33,0x3b, 0xfB,//0x3e, 0x00,0x43, 0x11,0x16, 0x10,//0x39, 0x92,//0x35, 0xda,0x22, 0x1a,0x37, 0xc3,0x23, 0x00,0x34, 0xc0,0x36, 0x1a,0x06, 0x88,0x07, 0xc0,0x0d, 0x87,0x0e, 0x41,0x4c, 0x00,0x48, 0x00,0x5B, 0x00,0x42, 0x03,//0x4a, 0x81,0x21, 0x99,//0x24, 0x40,0x25, 0x38,0x26, 0x82,0x5c, 0x00,0x63, 0x00,0x46, 0x00,0x0c, 0x3c,//0x61, 0x70,0x62, 0x80,0x7c, 0x05,//0x20, 0x80,0x28, 0x30,0x6c, 0x00,0x6d, 0x80,0x6e, 0x00,0x70, 0x02,0x71, 0x94,0x73, 0xc1, 0x3d, 0x34, 0x5a, 0x57,//0x12, 0x00,//UXGA 1600*12000x17, 0x11,0x18, 0x75,0x19, 0x01,0x1a, 0x97,0x32, 0x36,0x03, 0x0f, 0x37, 0x40,// 0x4f, 0xca,0x50, 0xa8,0x5a, 0x23,0x6d, 0x00,0x6d, 0x38,//0xff, 0x00,0xe5, 0x7f,0xf9, 0xc0,0x41, 0x24,0xe0, 0x14,0x76, 0xff,0x33, 0xa0,0x42, 0x20,0x43, 0x18,0x4c, 0x00,0x87, 0xd5,0x88, 0x3f,0xd7, 0x03,0xd9, 0x10,0xd3, 0x82,//0xc8, 0x08,0xc9, 0x80,//0x7c, 0x00,0x7d, 0x00,0x7c, 0x03,0x7d, 0x48,0x7d, 0x48,0x7c, 0x08,0x7d, 0x20,0x7d, 0x10,0x7d, 0x0e,//0x90, 0x00,0x91, 0x0e,0x91, 0x1a,0x91, 0x31,0x91, 0x5a,0x91, 0x69,0x91, 0x75,0x91, 0x7e,0x91, 0x88,0x91, 0x8f,0x91, 0x96,0x91, 0xa3,0x91, 0xaf,0x91, 0xc4,0x91, 0xd7,0x91, 0xe8,0x91, 0x20,//0x92, 0x00,0x93, 0x06,0x93, 0xe3,0x93, 0x05,0x93, 0x05,0x93, 0x00,0x93, 0x04,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,//0x96, 0x00,0x97, 0x08,0x97, 0x19,0x97, 0x02,0x97, 0x0c,0x97, 0x24,0x97, 0x30,0x97, 0x28,0x97, 0x26,0x97, 0x02,0x97, 0x98,0x97, 0x80,0x97, 0x00,0x97, 0x00,//0xc3, 0xef,0xa4, 0x00,0xa8, 0x00,0xc5, 0x11,0xc6, 0x51,0xbf, 0x80,0xc7, 0x10,0xb6, 0x66,0xb8, 0xA5,0xb7, 0x64,0xb9, 0x7C,0xb3, 0xaf,0xb4, 0x97,0xb5, 0xFF,0xb0, 0xC5,0xb1, 0x94,0xb2, 0x0f,0xc4, 0x5c,//0xc0, 0xc8,0xc1, 0x96,0x8c, 0x00,0x86, 0x3d,0x50, 0x00,0x51, 0x90,0x52, 0x2c,0x53, 0x00,0x54, 0x00,0x55, 0x88,0x5a, 0x90,0x5b, 0x2C,0x5c, 0x05,0xd3, 0x02, //auto setting should be careful//0xc3, 0xed,0x7f, 0x00,0xda, 0x09,0xe5, 0x1f,0xe1, 0x67,0xe0, 0x00,0xdd, 0x7f,0x05, 0x00,
};
//OV2640 SVGA register configuration
//data frame rate: 30
//SVGA 800*600
const uint8_t ov2640_svga_init_reg_tbl[][2]=
{ 0xff, 0x00,0x2c, 0xff,0x2e, 0xdf,0xff, 0x01,0x3c, 0x32,//0x11, 0x00,0x09, 0x02,0x04, 0xD8,//horizon mirror, vertical rotate0x13, 0xe5,0x14, 0x48,0x2c, 0x0c,0x33, 0x78,0x3a, 0x33,0x3b, 0xfB,//0x3e, 0x00,0x43, 0x11,0x16, 0x10,//0x39, 0x92,//0x35, 0xda,0x22, 0x1a,0x37, 0xc3,0x23, 0x00,0x34, 0xc0,0x36, 0x1a,0x06, 0x88,0x07, 0xc0,0x0d, 0x87,0x0e, 0x41,0x4c, 0x00,0x48, 0x00,0x5B, 0x00,0x42, 0x03,//0x4a, 0x81,0x21, 0x99,//0x24, 0x40,0x25, 0x38,0x26, 0x82,0x5c, 0x00,0x63, 0x00,0x46, 0x22,0x0c, 0x3c,//0x61, 0x70,0x62, 0x80,0x7c, 0x05,//0x20, 0x80,0x28, 0x30,0x6c, 0x00,0x6d, 0x80,0x6e, 0x00,0x70, 0x02,0x71, 0x94,0x73, 0xc1,0x3d, 0x34, 0x5a, 0x57,0x12, 0x40,//SVGA 800*6000x17, 0x11,0x18, 0x43,0x19, 0x00,0x1a, 0x4b,0x32, 0x09,0x37, 0xc0,//0x4f, 0xca,0x50, 0xa8,0x5a, 0x23,0x6d, 0x00,0x3d, 0x38,//0xff, 0x00,0xe5, 0x7f,0xf9, 0xc0,0x41, 0x24,0xe0, 0x14,0x76, 0xff,0x33, 0xa0,0x42, 0x20,0x43, 0x18,0x4c, 0x00,0x87, 0xd5,0x88, 0x3f,0xd7, 0x03,0xd9, 0x10,0xd3, 0x82,//0xc8, 0x08,0xc9, 0x80,//0x7c, 0x00,0x7d, 0x00,0x7c, 0x03,0x7d, 0x48,0x7d, 0x48,0x7c, 0x08,0x7d, 0x20,0x7d, 0x10,0x7d, 0x0e,//0x90, 0x00,0x91, 0x0e,0x91, 0x1a,0x91, 0x31,0x91, 0x5a,0x91, 0x69,0x91, 0x75,0x91, 0x7e,0x91, 0x88,0x91, 0x8f,0x91, 0x96,0x91, 0xa3,0x91, 0xaf,0x91, 0xc4,0x91, 0xd7,0x91, 0xe8,0x91, 0x20,//0x92, 0x00,0x93, 0x06,0x93, 0xe3,0x93, 0x05,0x93, 0x05,0x93, 0x00,0x93, 0x04,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,0x93, 0x00,//0x96, 0x00,0x97, 0x08,0x97, 0x19,0x97, 0x02,0x97, 0x0c,0x97, 0x24,0x97, 0x30,0x97, 0x28,0x97, 0x26,0x97, 0x02,0x97, 0x98,0x97, 0x80,0x97, 0x00,0x97, 0x00,//0xc3, 0xed,0xa4, 0x00,0xa8, 0x00,0xc5, 0x11,0xc6, 0x51,0xbf, 0x80,0xc7, 0x10,0xb6, 0x66,0xb8, 0xA5,0xb7, 0x64,0xb9, 0x7C,0xb3, 0xaf,0xb4, 0x97,0xb5, 0xFF,0xb0, 0xC5,0xb1, 0x94,0xb2, 0x0f,0xc4, 0x5c,0xc0, 0x64,0xc1, 0x4B,0x8c, 0x00,0x86, 0x3D,0x50, 0x00,0x51, 0xC8,0x52, 0x96,0x53, 0x00,0x54, 0x00,0x55, 0x00,0x5a, 0xC8,0x5b, 0x96,0x5c, 0x00,0xd3, 0x02,//0xc3, 0xed,0x7f, 0x00,0xda, 0x09,0xe5, 0x1f,0xe1, 0x67,0xe0, 0x00,0xdd, 0x7f,0x05, 0x00,
};
const uint8_t ov2640_yuv422_reg_tbl[][2]=
{0xFF, 0x00, 0xDA, 0x10,0xD7, 0x03,0xDF, 0x00,0x33, 0x80,0x3C, 0x40,0xe1, 0x77,0x00, 0x00,
};
const uint8_t ov2640_jpeg_reg_tbl[][2]=
{0xff, 0x01, 0xe0, 0x14,0xe1, 0x77,0xe5, 0x1f,0xd7, 0x03,0xda, 0x10,0xe0, 0x00,
};
const uint8_t ov2640_rgb565_reg_tbl[][2]=
{0xFF, 0x00,0xDA, 0x09,0xD7, 0x03,0xDF, 0x02,0x33, 0xa0,0x3C, 0x00,0xe1, 0x67,0xff, 0x01, 0xe0, 0x00,0xe1, 0x00,0xe5, 0x00,0xd7, 0x00, 0xda, 0x00,0xe0, 0x00,
};
#endif
4.4 main.c
/* USER CODE BEGIN PV */#define nWidth_raw 320
#define nHeight_raw 180#define DEF_DcmiDmaRxBuff_Size nWidth_raw*nHeight_raw*2uint8_t a_DcmiDmaRxBuff[DEF_DcmiDmaRxBuff_Size];/* USER CODE END PV *//* USER CODE BEGIN 2 */OV2640_Init();OV2640_RGB565_Mode();//OV2640_JPEG_Mode();OV2640_OutSize_Set(nWidth_raw, nHeight_raw);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){if(HAL_GPIO_ReadPin(CTR_GPIO_Port, CTR_Pin) == GPIO_PIN_RESET){HAL_Delay(10);if(HAL_GPIO_ReadPin(CTR_GPIO_Port, CTR_Pin) == GPIO_PIN_RESET){HAL_DCMI_Stop(&hdcmi);HAL_UART_DMAStop(&huart3);MX_DCMI_Init();__HAL_DCMI_ENABLE_IT(&hdcmi, DCMI_IT_FRAME);//__HAL_DCMI_ENABLE_IT(&hdcmi, DCMI_IT_OVR);HAL_DCMI_Start_DMA(&hdcmi, DCMI_MODE_SNAPSHOT,(uint32_t)a_DcmiDmaRxBuff, DEF_DcmiDmaRxBuff_Size);}while(HAL_GPIO_ReadPin(CTR_GPIO_Port, CTR_Pin) == GPIO_PIN_RESET);}if(getPicture == 1){getPicture = 0;uint32_t temp;HAL_DCMI_Stop(&hdcmi);temp = __HAL_DMA_GET_COUNTER(&hdma_dcmi);b_DcmiDmaRxBuff_Cnt = DEF_DcmiDmaRxBuff_Size - temp;while(a_DcmiDmaRxBuff[b_DcmiDmaRxBuff_Cnt-1]==0){b_DcmiDmaRxBuff_Cnt--;}HAL_UART_Transmit_LargeArray(&huart3, a_DcmiDmaRxBuff, DEF_DcmiDmaRxBuff_Size, HAL_MAX_DELAY);for(i=0;i<b_DcmiDmaRxBuff_Cnt;i++){a_DcmiDmaRxBuff[i] = 0;}b_DcmiDmaRxBuff_Cnt = 0;}/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */void HAL_UART_Transmit_LargeArray(UART_HandleTypeDef *huart, uint8_t *pData, uint32_t Size, uint32_t Timeout)
{uint32_t b_TxCnt = 0;while(b_TxCnt<Size){if((Size-b_TxCnt)>=20000){HAL_UART_Transmit(huart, pData+ b_TxCnt, 20000, Timeout);b_TxCnt += 20000;}else{HAL_UART_Transmit(huart, pData+ b_TxCnt, (Size-b_TxCnt), Timeout);b_TxCnt+=(Size-b_TxCnt);}}
}如果需要jpg格式，那么
OV2640_Init();//OV2640_RGB565_Mode();OV2640_JPEG_Mode();OV2640_OutSize_Set(nWidth_raw, nHeight_raw);这里的ov2640_outsize_set函数可以设置想要的图片大小。这个函数在RAM有限的情况下很有用。
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