UM0585 datasheet(20/25 Pages) STMICROELECTRONICS

номер детали	UM0585

подробное описание детали	STM32F10x DSP library

PDF	25 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

Logo

20 / 25 page

STM32F10x DSP library benchmark

UM0585

20/25

Doc ID 14988 Rev 2

6.2.2

Fast Fourier transform (FFT)

6.2.3

FIR filter

Table 13.

PID controller, error computed within the routine

PID

24 MHz

0 wait state

48 MHz

1 wait state

72 MHz

2 wait states

cycle count

time

cycle count

time

cycle count

time

C function

2 µs

1.08 µs

0.79 µs

Table 14.

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

FFT

(ASM funct.)

24 MHz

0 wait state

48 MHz

1 wait state

72 MHz

2 wait states

cycle count

time

cycle count

time

cycle count

time

64 points

3847

0.16 ms

4 472

0.093 ms

5 661

0.078 ms

256 points

21 039

0.876 ms

24 964

0.52 ms

31 527

0.437 ms

1024 points

100 180

4.174 ms

114 350

2.382 ms

153 930

2.138 ms

Table 15.

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

FFT

(ASM funct.)

24 MHz

0 wait state

48 MHz

1 wait state

72 MHz

2 wait states

cycle count

time

cycle count

time

cycle count

time

64 points

3 847

0.16 ms

4 025

0.084 ms

4 764

0.066 ms

256 points

21 039

0.876 ms

22 176

0.462 ms

26 065

0.362 ms

1024 points

100 180

4.174 ms

102 057

2.126 ms

127 318

1.768 ms

Table 16.

16-bit, 32-tap FIR filter

FIR

(ASM filter)

24 MHz

0 wait state

48 MHz

1 wait state

72 MHz

2 wait states

cycle count

time

cycle count

time

cycle count

time

32 samples

3516

146.5 µs

3525

73.4 µs

3727

51.76 µs

UM0585 датащи(PDF) 20 Page - STMicroelectronics

UM0585 датащи(HTML) 20 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

датащи скачать

ссылки URL