日本黄色一级经典视频|伊人久久精品视频|亚洲黄色色周成人视频九九九|av免费网址黄色小短片|黄色Av无码亚洲成年人|亚洲1区2区3区无码|真人黄片免费观看|无码一级小说欧美日免费三级|日韩中文字幕91在线看|精品久久久无码中文字幕边打电话

首頁 > 評測 > 傾”芯”，不恨晚——NUCLEO-F446RE評測

傾”芯”，不恨晚——NUCLEO-F446RE評測

  • 作者：Aries
  • 來源：21ic
  • [導讀]
  • F446RE作為一顆市用度很高的芯，還需要來評測嗎？市面上已經(jīng)有了Nucleo-F446ZE，那Nucleo-F446RE是不是就落伍了？本文作者并不這么看，傾“芯”，不恨晚~通過本文中的跑分、功耗和精度等測試，你或許會對它有更加深刻地認識。

(2)功耗測試

功耗測試是不可或缺的測試，現(xiàn)在的MCU都要強調(diào)低功耗。

- Sleep Mode

運行狀態(tài)：

- System Running at PLL (180MHz)

- Flash 5 wait state

- Instruction and Data caches ON

- Prefetch OFF

- Code running from Internal FLASH

- All peripherals disabled

- Wakeup using EXTI Line (User Button PC.13)

30.jpg

 

實測數(shù)據(jù)跟官方的差幾個毫安，有點偏差。

31.jpg

 

- STOP Mode

運行狀態(tài)：

- RTC Clocked by LSI

- Regulator in LP mode

- HSI, HSE OFF and LSI if not used as RTC Clock source

- No IWDG

- FLASH in deep power down mode

- Automatic Wakeup using RTC clocked by LSI (after ~20s)

32.jpg

 

這個模式下測到的數(shù)據(jù)跟官方的有點差距了。

33.jpg

 

- Under Drive STOP Mode

運行狀態(tài)：

- RTC Clocked by LSI

- Regulator in LP mode

- Under drive feature enabled

- HSI, HSE OFF and LSI if not used as RTC Clock source

- No IWDG

- FLASH in deep power down mode

- Automatic Wakeup using RTC clocked by LSI (after ~20s)

34.jpg

 

同樣這組數(shù)據(jù)差距也比較大。

35.jpg

 

- STANDBY Mode

運行狀態(tài)：

- Backup SRAM and RTC OFF

- IWDG and LSI OFF

- Wakeup using WakeUp Pin (PA.00) by connecting PA0 (pin 28 in CN7 connector) to 3.3V (pin 4 in CN6 connector)

36.jpg

 

測量的結(jié)果跟官方標稱的相差不大。

37.jpg

 

- STANDBY Mode with RTC clocked by LSI

運行狀態(tài)：

- RTC Clocked by LSI

- IWDG OFF and LSI OFF if not used as RTC Clock source

- Backup SRAM OFF

- Automatic Wakeup using RTC clocked by LSI (after ~20s)

38.jpg

 

測試結(jié)果也差不多，跟官方的相差不會太大。

39.jpg

 

-STANDBY Mode with RTC clocked by LSI and BKPSRAM

運行狀態(tài)：

- RTC Clocked by LSI

- Backup SRAM ON

- IWDG OFF

這些開發(fā)板你一定沒玩過！來開發(fā)板試用中心免費借閱吧~

  • 本文系21ic原創(chuàng)，未經(jīng)許可禁止轉(zhuǎn)載!

網(wǎng)友評論