поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

AN4635 датащи(PDF) 17 Page - STMicroelectronics

номер детали AN4635
подробное описание детали  Minimization of power consumption using LPUART in microcontrollers of the STM32L0 series
PDF  34 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4635 датащи(HTML) 17 Page - STMicroelectronics

Back Button AN4635 Datasheet HTML 13Page - STMicroelectronics AN4635 Datasheet HTML 14Page - STMicroelectronics AN4635 Datasheet HTML 15Page - STMicroelectronics AN4635 Datasheet HTML 16Page - STMicroelectronics AN4635 Datasheet HTML 17Page - STMicroelectronics AN4635 Datasheet HTML 18Page - STMicroelectronics AN4635 Datasheet HTML 19Page - STMicroelectronics AN4635 Datasheet HTML 20Page - STMicroelectronics AN4635 Datasheet HTML 21Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 17 / 34 page
background image
DocID027290 Rev 1
17/34
AN4635
Power consumption comparison
33
6.3
Interrupt operation overhead
The interrupt mechanism on the ARM cortex core is very efficient, but still represents an
additional effort. This fact is best illustrated by comparison on the very minimum core clock
suitable for interrupt driven operation of our example code, 250 kHz.
As shown in Figure 4, the IT code (black line) actually spends almost no time in Sleep mode
(waiting for interrupt) and the power consumption is comparatively high. Blocking operation
represented by the red line saves some energy in waiting for event (Tx buffer empty or Rx
buffer full).
This comparison cannot be absolutely fair, as a different code is executed, nevertheless it
holds significance of code optimization too.
Figure 4. Interrupt operation overhead
ULP/FWU
+/+
Baud rate
9600
SW used
Blocking operation (Com Polling)
with define RXSLEEP
Also TXSLEEP defined
Table 5. Configurations - Sleep mode vs. LPRUN (continued)
Curve in Figure 3
Black
Green
Red



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 26 27 28 29 30 31 32 33 34


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com