关于GPL329A中获取摄像头sensor id的问题

来源：互联网发布：大数据服务中心编辑：程序博客网时间：2024/06/17 19:09

首先我拿到了sensor_id应用程序的源码，我要在上面添加获取ov2685 的 sensor id的代码.

利用find . -name get_sensor_id找到该代码编译之后生成的a.out文件，这个a.out文件也就是get_sensor_id，它的代码如下:

./project/gplus/sampleCode/rootfs/sbin/get_sensor_id(这个是find命令找到这个a.out的路径)

从这段代码看，我们需要有ov2685的驱动作为参考，知道这个sensor的I2C的地址，然后其余的步骤配置就和其它的sensor是一样的啦!

//yangyx -------> 2016.4.20case 6 : //ov2685 sensor{DEBUG("ov2685\n"); attr.slaveAddr = 0x78;  //ov2685 sensor ID  attr.clkRate = 0x64;    //不用改system("devmem 0x93007084 32 0");//scuaCsiClkCfg 不用改usleep(1000);if(IO_Write_Value(0, reset_pin, 0) != STATUS_OK) //set_sensor_resetperror("error set_sensor_reset\n");usleep(1000);if(IO_Write_Value(0, 12, 0) != STATUS_OK) //set_sensor_powerperror("error set_sensor_power\n");usleep(10000);//power onif(IO_Write_Value(0, 12, 1) != STATUS_OK) //set_sensor_powerperror("error set_sensor_power\n");usleep(10000);if(IO_Write_Value(0, 30, 0) != STATUS_OK) //set_sensor_standbyperror("error set_sensor_standby\n");system("devmem 0x9300703c 32 0x04003004");//scuaUsbPhyCfgsystem("devmem 0x93007084 32 0");//scuaCsiClkCfgsystem("devmem 0x93007084 32 0x00010103");//scuaCsiClkCfgusleep(2000);//-------------------------------------------------if(IO_Write_Value(0, reset_pin, 1) != STATUS_OK) //set_sensor_resetperror("error set_sensor_reset\n");usleep(20000);//不用改  ret = ioctl(fd, I2C_BUS_ATTR_SET, &attr);  if(ret < 0){perror("ioctl set i2c arg\n");continue;  }//-------------------------------------------sensor_info.write_data[0] = 0x30;sensor_info.write_data[1] = 0x0a;sensor_info.write_size = 2;sensor_info.read_size = 2;ret = ioctl(fd, I2C_BUS_WRITE_READ, &sensor_info);  if(ret < 0){perror("ioctl set i2c arg\n");continue;  }readdevice = (sensor_info.read_data[0] << 8) + sensor_info.read_data[1];if( readdevice == 0x2656){DEBUG("I2C_BUS_WRITE_READ data = 0x%02x\n", readdevice);i = MAX_DEVICE + 1;deviceno = 2;}else{printf("Error I2C_BUS_WRITE_READ data = 0x%02x\n", readdevice);}break;}

0 0