Simple FFT Example

支持的平台

例程可以运行在以下开发板.

sf32lb56-lcd_a128r12n1

示例概述

本示例演示了以下基础FFT操作：

实数FFT（Real FFT - 将实数序列转换为频域
复数FFT（Complex FFT - 将复数序列转换为频域
逆FFT（Inverse FFT - 将频域数据转换回时域

例程的使用

硬件连接

本例程不需要特殊的硬件连接，只需将开发板连接到电脑。

预期结果

预期情况下，您将看到以下输出：

=========================================
        FFT HAL Module Example          
=========================================
This example demonstrates:
- Real FFT operation
- Complex FFT operation
- Inverse FFT operation
=========================================

FFT Example: Using FFT1 (HCPU)
FFT initialization successful
=== Real FFT Test ===
Real FFT completed successfully
[0] = 0x0B73
[1] = 0x0000
[2] = 0x0349
[3] = 0x0641
[4] = 0xFE9D
[5] = 0xFBF7
[6] = 0xF7E2
[7] = 0x067A
[8] = 0xF961
...

=== Complex FFT Test ===
Complex FFT completed successfully
[0] = 0x0599
[1] = 0x077B
[2] = 0x0BA7
[3] = 0xFF15
[4] = 0x04C7
[5] = 0xF4D7
[6] = 0xFC33
[7] = 0xF75A
[8] = 0x000A
...

=== Inverse FFT Test ===
Inverse FFT completed successfully
[0] = 0x0599
[1] = 0x077B
[2] = 0x0BA7
[3] = 0xFF15
[4] = 0x04C7
[5] = 0xF4D7
[6] = 0xFC33
[7] = 0xF75A
[8] = 0x000A
...

=========================================
          FFT Example Complete          
=========================================

更新记录

版本	日期	发布说明
1.0.0	6/2025	初始版本