代码里有很完整的注释和解释，可以得到很精确的幅值、频率、相位估计，实现用SDRAM运行nios，同时用SRAM保存摄像头数据。- Code, there are very complete notes and explanations You can get a very accurate amplitude, frequency, phase estimation, Implemented with SDRAM run nios, while saving camera data SRAM.