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UM0585: DescriptionSTM32F10x DSP library; File Size186KB，25 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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UM0585 Overview

STM32F10x DSP library

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UM0585

User manual

STM32F10x

DSP library

Introduction

This user manual describes the STM32F10x DSP (digital signal processing) library, which is

a suite of common digital signal processing functions:

●

PID controller

Fast Fourier transform

FIR and IIR filters

The library contains C and assembly functions. The assembly code is ported on ARM

GCC and IAR Systems™ assemblers.

June 2010

Doc ID 14988 Rev 2

1/25

www.st.com

Contents

UM0585

Contents

DSP Library description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

PID controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1

2.2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

DSP library functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.1

2.2.2

2.2.3

DoPID

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

DoFullPID

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

PID_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Complex 16-bit radix-4 FFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1

3.2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

DSP library functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2.1

3.2.2

3.2.3

cr4_fft_64_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

cr4_fft_256_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

cr4_fft_1024_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3

FFT performance improvement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

16-bit FIR filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1

4.2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

DSP library function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2.1

fir_16by16_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

16-bit IIR filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1

5.2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

DSP library functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.1

5.2.2

iiarma_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

iir_biquad_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

STM32F10x DSP library benchmark . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.1

6.2

Function code footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Function execution time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2.1

6.2.2

6.2.3

PID controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Fast Fourier transform (FFT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

FIR filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Doc ID 14988 Rev 2

2/25

List of tables

UM0585

List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Table 15.

Table 16.

Table 17.

Table 18.

Table 19.

STM32F10x DSP library functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DoPID

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

DoFullPID

function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

PID_stm32

function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

cr4_fft_64_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

cr4_fft_256_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

cr4_fft_1024_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

fir_16by16_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

iirarma_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

iir_biquad_stm32

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

STM32F10x DSP library functions code footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

PID controller, error computed outside the routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

PID controller, error computed within the routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Complex radix 4, 16-bit FFT, coefficients in Flash memory . . . . . . . . . . . . . . . . . . . . . . . . 20

Complex radix 4, 16-bit FFT, coefficients in RAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

16-bit, 32-tap FIR filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

16-bit canonic form, 4 biquad IIR filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

16-bit, 4

-order IIR filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4/25

Doc ID 14988 Rev 2

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