加速度计和陀螺仪的校准: 在传感器静止不动水平放置时,测出陀螺仪和加速度计各轴的偏移值,保存.以后每次上电调用dmp_set_xx_bias()就行了. u8 run_self_test(void) { int result; //char test_packet[4] = {0}; long gyro[3], accel[3]; result = mpu_run_self_test(gyro, accel); if (result == 0x3) { /* Test passed. We ca
在使用桦仔的分享一个SQLSERVER脚本(计算数据库中各个表的数据量和每行记录所占用空间)的脚本时,遇到下面一些错误 这个是因为这些表的Schema是Maint,而不是默认的dbo,造成下面这段SQL在执行EXEC sp_spaceused @tablename时出现 Msg 15009, Level 16, State 1, Procedure sp_spaceused, Line 75 The object 'xxxx' does not exist in database 'YourSQ
- (UIImage *)fixOrientation { // No-op if the orientation is already correct if (self.imageOrientation == UIImageOrientationUp) return self; // We need to calculate the proper transformation to make the image upright. // We do it in 2 steps: Rotate i