ESPRESSIF ESP32 Chip Bita 3.0

Canjin ƙira a cikin Bita na Chip v3.0

Espressif ya fito da canjin matakin wafer guda ɗaya akan jerin samfuran ESP32 (bita na guntu v3.0). Wannan takaddar tana bayyana bambance-bambance tsakanin guntu bita v3.0 da na baya ESP32 bita guntu. A ƙasa akwai manyan canje-canjen ƙira a cikin bita na guntu v3.0:

1. PSRAM Cache Bug Gyara: Kafaffen "Lokacin da CPU ya sami dama ga SRAM na waje a cikin wani jeri, karanta & rubuta kurakurai na iya faruwa." Ana iya samun cikakkun bayanai game da batun a abu na 3.9 a cikin ESP32 Series SoC Errata.
2. Kafaffen "Lokacin da kowane CPU ya karanta wasu wuraren adireshi daban-daban lokaci guda, kuskuren karantawa na iya faruwa." Ana iya samun cikakkun bayanai game da batun a abu na 3.10 a cikin ESP32 Series SoC Errata.
3. Ingantacciyar kwanciyar hankali na 32.768 KHz crystal oscillator, abokin ciniki ya ruwaito batun cewa akwai ƙaramin yuwuwar cewa a ƙarƙashin kayan aikin gyara guntu v1.0, 32.768 KHz crystal oscillator ba zai iya farawa da kyau ba.
4. Kafaffen al'amurran allura na kuskure game da amintaccen taya da ɓoyayyen filasha ana gyara su. Magana: Shawarar Tsaro game da allurar kuskure da kariyar eFuse
   (CVE-2019-17391) & Shawarar Tsaro ta Espressif Game da allurar Laifi da Tabbataccen Boot (CVE-2019-15894)
5. Ingantawa: Canja mafi ƙarancin ƙimar baud da ke tallafawa tsarin TWAI daga 25 kHz zuwa 12.5 kHz.
6. An ba da izinin Zazzage Yanayin Boot don a kashe shi ta dindindin ta tsara sabon eFuse bit UART_DOWNLOAD_DIS. Lokacin da aka tsara wannan bit zuwa 1, Zazzage yanayin Boot ba za a iya amfani da shi ba kuma booting zai gaza idan an saita fil ɗin madauri don wannan yanayin. Shirin software wannan bit ta hanyar rubuta zuwa bit 27 na EFUSE_BLK0_WDATA0_REG, kuma karanta wannan bit ta hanyar karanta bit 27 na EFUSE_BLK0_RDATA0_REG. Rubutun kashewa don wannan ɗan an raba shi tare da kashe rubutu don filin flash_crypt_cnt eFuse.

Tasiri kan Ayyukan Abokin ciniki

An yi nufin wannan sashe don taimaka wa abokan cinikinmu su fahimci tasirin amfani da bita na guntu v3.0 a cikin sabon ƙira ko maye gurbin tsohuwar sigar SoC tare da bitar guntu v3.0 a cikin ƙirar da ake da ita.

Yi amfani da Case 1: Haɓaka Hardware da Software
Wannan shine yanayin amfani inda ake ƙaddamar da sabon aikin ko haɓaka kayan masarufi da software a cikin aikin da ke akwai zaɓi ne mai yuwuwa. A irin wannan yanayin, aikin zai iya samun fa'ida daga kariya daga harin allurar da ba daidai ba kuma yana iya ɗaukar advantage na sabon amintaccen tsarin taya da PSRAM cache bug fix tare da ingantaccen aikin PSRAM.

1. Canje-canjen Ƙirƙirar Hardware:
   Da fatan za a bi sabuwar Jagorar Zane Hardware na Espressif. Don inganta yanayin kwanciyar hankali na 32.768 kHz crystal oscillator, da fatan za a koma zuwa Sashe Crystal Oscillator don ƙarin bayani.
2. Canje-canjen Ƙirar Software:
   1) Zaɓi Mafi ƙarancin daidaitawa zuwa Rev3: Je zuwa menuconfig> Saitin mai ba da izini> takamaiman ESP32, kuma saita zaɓin Bita mafi ƙarancin tallafi na ESP32 zuwa “Rev 3”.
   2) Sigar software: Ba da shawarar yin amfani da amintaccen taya na tushen RSA daga ESP-IDF v4.1 da kuma daga baya. Sigar Sakin ESP-IDF v3.X kuma na iya aiki tare da aikace-aikace tare da amintaccen boot V1 na asali.

Yi amfani da Case 2: Haɓaka Hardware Kawai
Wannan shine shari'ar amfani inda abokan ciniki ke da aikin da ke akwai wanda zai iya ba da damar haɓaka kayan masarufi amma software tana buƙatar kasancewa iri ɗaya a cikin bita na hardware. A wannan yanayin aikin yana samun fa'ida na tsaro ga hare-haren allura da kuskure, PSRAM cache bug fix da 32.768KHz crystal oscillator kwanciyar hankali. Ayyukan PSRAM na ci gaba da kasancewa ɗaya ko da yake.

1. Canje-canjen Ƙirƙirar Hardware:
   Da fatan za a bi sabuwar Jagorar Zane Hardware na Espressif.
2. Canje-canjen Ƙirar Software:
   Abokin ciniki zai iya ci gaba da amfani da software iri ɗaya da binary don samfuran da aka tura. Binary aikace-aikacen iri ɗaya zai yi aiki akan duka bitar guntu v1.0 da guntu bita v3.0.

Alamar Takaddar

An nuna alamar ESP32-D0WD-V3 a ƙasa:
An nuna alamar ESP32-D0WDQ6-V3 a ƙasa:

Bayanin oda

Don odar samfur, da fatan za a koma zuwa: ESP Mai Zaɓan Samfur.

Sanarwa da Haƙƙin mallaka
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Haƙƙin mallaka © 2022 Espressif Inc. Duk haƙƙin mallaka.

Espressif IoT Team www.espressif.com

Takardu / Albarkatu

ESPRESSIF ESP32 Chip Bita 3.0 [pdf] Jagorar mai amfani ESP32 Chip Bita v3.0, ESP32, Chip Bita v3.0, ESP32 Chip

Magana

• Manual mai amfani