/********************************************************************************************************************* * COPYRIGHT NOTICE * Copyright (c) 2020,逐飞科技 * All rights reserved. * 技术讨论QQ群：三群：824575535 * * 以下所有内容版权均属逐飞科技所有，未经允许不得用于商业用途， * 欢迎各位使用并传播本程序，修改内容时必须保留逐飞科技的版权声明。 * * @file main * @company 成都逐飞科技有限公司 * @author 逐飞科技(QQ3184284598) * @version 查看doc内version文件 版本说明 * @Software ADS v1.2.2 * @Target core TC264D * @Taobao https://seekfree.taobao.com/ * @date 2020-3-23 * @note 接线定义： ------------------------------------ 模块管脚 单片机管脚 SDA 查看SEEKFREE_IIC文件内的SEEKFREE_SDA宏定义 SCL 查看SEEKFREE_IIC文件内的SEEKFREE_SCL宏定义 场中断(VSY) 查看SEEKFREE_OV7725.h文件中的OV7725_VSYNC_PIN宏定义 行中断(HREF) 未使用，因此不接 像素中断(PCLK) 查看SEEKFREE_OV7725.h文件中的OV7725_PCLK_PIN宏定义 数据口(D0-D7) 查看SEEKFREE_OV7725.h文件中的OV7725_DATA_PIN宏定义 ------------------------------------ 默认分辨率是 160*120 默认FPS 50帧 ********************************************************************************************************************/ #include "IfxDma.h" #include "IfxScuEru.h" #include "zf_stm_systick.h" #include "zf_gpio.h" #include "zf_eru.h" #include "zf_eru_dma.h" #include "SEEKFREE_IIC.h" #include "SEEKFREE_7725.h" IFX_ALIGN(4) uint8 image_bin[OV7725_H][OV7725_W/8]; //定义存储接收图像的数组 uint8 image_dec[OV7725_H][OV7725_W]; uint8 ov7725_idcode = 0; //------------------------------------------------------------------------------------------------------------------- // @brief 小钻风摄像头内部寄存器初始化(内部使用，用户无需调用) // @param NULL // @return uint8 返回0则出错，返回1则成功 // @since v1.0 // Sample usage: //------------------------------------------------------------------------------------------------------------------- uint8 ov7725_reg_init(void) { simiic_delay_set(700); simiic_write_reg ( OV7725_DEV_ADD, OV7725_COM7, 0x80 ); //复位摄像头 systick_delay_ms(STM0, 50); ov7725_idcode = simiic_read_reg( OV7725_DEV_ADD, OV7725_VER ,SCCB); if( ov7725_idcode != OV7725_ID ) return 0; //校验摄像头ID号 //ID号确认无误 然后配置寄存器 simiic_write_reg(OV7725_DEV_ADD, OV7725_COM4 , 0xC1); simiic_write_reg(OV7725_DEV_ADD, OV7725_CLKRC , 0x01); simiic_write_reg(OV7725_DEV_ADD, OV7725_COM2 , 0x03); simiic_write_reg(OV7725_DEV_ADD, OV7725_COM3 , 0xD0); simiic_write_reg(OV7725_DEV_ADD, OV7725_COM7 , 0x40); simiic_write_reg(OV7725_DEV_ADD, OV7725_COM8 , 0xCE); //0xCE:关闭自动曝光 0xCF：开启自动曝光 simiic_write_reg(OV7725_DEV_ADD, OV7725_HSTART , 0x3F); simiic_write_reg(OV7725_DEV_ADD, OV7725_HSIZE , 0x50); simiic_write_reg(OV7725_DEV_ADD, OV7725_VSTRT , 0x03); simiic_write_reg(OV7725_DEV_ADD, OV7725_VSIZE , 0x78); simiic_write_reg(OV7725_DEV_ADD, OV7725_HREF , 0x00); simiic_write_reg(OV7725_DEV_ADD, OV7725_SCAL0 , 0x0A); simiic_write_reg(OV7725_DEV_ADD, OV7725_AWB_Ctrl0 , 0xE0); simiic_write_reg(OV7725_DEV_ADD, OV7725_DSPAuto , 0xff); simiic_write_reg(OV7725_DEV_ADD, OV7725_DSP_Ctrl2 , 0x0C); simiic_write_reg(OV7725_DEV_ADD, OV7725_DSP_Ctrl3 , 0x00); simiic_write_reg(OV7725_DEV_ADD, OV7725_DSP_Ctrl4 , 0x00); if(OV7725_W == 80) simiic_write_reg(OV7725_DEV_ADD, OV7725_HOutSize , 0x14); else if(OV7725_W == 160) simiic_write_reg(OV7725_DEV_ADD, OV7725_HOutSize , 0x28); else if(OV7725_W == 240) simiic_write_reg(OV7725_DEV_ADD, OV7725_HOutSize , 0x3c); else if(OV7725_W == 320) simiic_write_reg(OV7725_DEV_ADD, OV7725_HOutSize , 0x50); if(OV7725_H == 60) simiic_write_reg(OV7725_DEV_ADD, OV7725_VOutSize , 0x1E); else if(OV7725_H == 120) simiic_write_reg(OV7725_DEV_ADD, OV7725_VOutSize , 0x3c); else if(OV7725_H == 180) simiic_write_reg(OV7725_DEV_ADD, OV7725_VOutSize , 0x5a); else if(OV7725_H == 240) simiic_write_reg(OV7725_DEV_ADD, OV7725_VOutSize , 0x78); simiic_write_reg(OV7725_DEV_ADD, OV7725_REG28 , 0x01); simiic_write_reg(OV7725_DEV_ADD, OV7725_EXHCH , 0x10); simiic_write_reg(OV7725_DEV_ADD, OV7725_EXHCL , 0x1F); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM1 , 0x0c); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM2 , 0x16); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM3 , 0x2a); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM4 , 0x4e); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM5 , 0x61); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM6 , 0x6f); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM7 , 0x7b); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM8 , 0x86); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM9 , 0x8e); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM10 , 0x97); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM11 , 0xa4); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM12 , 0xaf); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM13 , 0xc5); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM14 , 0xd7); simiic_write_reg(OV7725_DEV_ADD, OV7725_GAM15 , 0xe8); simiic_write_reg(OV7725_DEV_ADD, OV7725_SLOP , 0x20); simiic_write_reg(OV7725_DEV_ADD, OV7725_LC_RADI , 0x00); simiic_write_reg(OV7725_DEV_ADD, OV7725_LC_COEF , 0x13); simiic_write_reg(OV7725_DEV_ADD, OV7725_LC_XC , 0x08); simiic_write_reg(OV7725_DEV_ADD, OV7725_LC_COEFB , 0x14); simiic_write_reg(OV7725_DEV_ADD, OV7725_LC_COEFR , 0x17); simiic_write_reg(OV7725_DEV_ADD, OV7725_LC_CTR , 0x05); simiic_write_reg(OV7725_DEV_ADD, OV7725_BDBase , 0x99); simiic_write_reg(OV7725_DEV_ADD, OV7725_BDMStep , 0x03); simiic_write_reg(OV7725_DEV_ADD, OV7725_SDE , 0x04); simiic_write_reg(OV7725_DEV_ADD, OV7725_BRIGHT , 0x00); simiic_write_reg(OV7725_DEV_ADD, OV7725_CNST , 0x40); simiic_write_reg(OV7725_DEV_ADD, OV7725_SIGN , 0x06); simiic_write_reg(OV7725_DEV_ADD, OV7725_UVADJ0 , 0x11); simiic_write_reg(OV7725_DEV_ADD, OV7725_UVADJ1 , 0x02); simiic_delay_set(SIMIIC_DELAY_TIME);//修改为默认的20 return 1; } //------------------------------------------------------------------------------------------------------------------- // @brief 小钻风摄像头采集程序初始化(内部使用，用户无需调用) // @param NULL // @return void // @since v1.0 // Sample usage: //------------------------------------------------------------------------------------------------------------------- void ov7725_port_init(void) { uint8 i; camera_type = CAMERA_BIN;//设置连接摄像头类型 camera_buffer_addr = image_bin[0]; //摄像头采集初始化 //初始化 数据引脚 for(i=0; i<8; i++) { gpio_init((PIN_enum)(OV7725_DATA_PIN+i), GPI, 0, PULLUP); } eru_dma_init(OV7725_DMA_CH, GET_PORT_IN_ADDR(OV7725_DATA_PIN), camera_buffer_addr, OV7725_PCLK_PIN, FALLING, OV7725_DMA_NUM); eru_init(OV7725_VSYNC_PIN, FALLING); //初始化场中断，并设置为下降沿触发中断 } //------------------------------------------------------------------------------------------------------------------- // @brief 小钻风摄像头初始化(调用之后设置好相关中断函数即可采集图像) // @param NULL // @return 0 // @since v1.0 // Sample usage: //------------------------------------------------------------------------------------------------------------------- uint8 ov7725_init(void) { simiic_init(); ov7725_reg_init(); //摄像头寄存器配置 ov7725_port_init(); //摄像头中断引脚及DMA配置 return 0; } uint8 ov7725_finish_flag = 0; //------------------------------------------------------------------------------------------------------------------- // @brief 小钻风摄像头场中断 // @param NULL // @return void // @since v1.0 // Sample usage: 此函数在isr.c中被eru（GPIO中断）中断调用 //------------------------------------------------------------------------------------------------------------------- void ov7725_vsync(void) { CLEAR_GPIO_FLAG(OV7725_VSYNC_PIN); if(!ov7725_finish_flag)//查看图像数组是否使用完毕，如果未使用完毕则不开始采集，避免出现访问冲突 { DMA_SET_DESTINATION(OV7725_DMA_CH, camera_buffer_addr); dma_start(OV7725_DMA_CH); } } //------------------------------------------------------------------------------------------------------------------- // @brief 小钻风摄像头DMA完成中断 // @param NULL // @return void // @since v1.0 // Sample usage: 此函数在isr.c中被dma中断调用 //------------------------------------------------------------------------------------------------------------------- void ov7725_dma(void) { CLEAR_DMA_FLAG(OV7725_DMA_CH); ov7725_finish_flag = 1; dma_stop(OV7725_DMA_CH); }