ESPRESSIF ESP32 Chip Revision v3.0

Kusintha Kwamapangidwe mu Chip Revision v3.0

Espressif yatulutsa chosintha chimodzi chawafer-level pa ESP32 Series of product (chip revision v3.0). Chikalatachi chikufotokoza kusiyana pakati pa chip revision v3.0 ndi kusintha kwa ESP32 chip. Pansipa pali zosintha zazikulu mu chip revision v3.0:

1. PSRAM Cache Bug Fix: Yokhazikika "CPU ikafika ku SRAM yakunja motsatizana, zolakwika zowerengera ndi kulemba zitha kuchitika.". Tsatanetsatane wa nkhaniyi angapezeke mu chinthu 3.9 mu ESP32 Series SoC Errata.
2. Zosasinthika "CPU iliyonse ikawerenga malo ena adilesi nthawi imodzi, cholakwika chowerenga chimatha kuchitika." Tsatanetsatane wa nkhaniyi angapezeke mu chinthu 3.10 mu ESP32 Series SoC Errata.
3. Kukhazikika kwa 32.768 KHz crystal oscillator, nkhaniyi idanenedwa ndi kasitomala kuti pali mwayi wochepa kuti pansi pa chip revision v1.0 hardware, 32.768 KHz crystal oscillator sakanakhoza kuyamba bwino.
4. Nkhani za jakisoni wa Fault zokhazikika zokhudzana ndi boot yotetezedwa ndi kubisa kwa flash zimakonzedwa. Reference: Upangiri Wachitetezo wokhudza jakisoni wolakwa ndi chitetezo cha eFuse
   (CVE-2019-17391) & Upangiri Wachitetezo wa Espressif Wokhudza Kubaya Jakisoni Wolakwika ndi Chitetezo Chotetezedwa (CVE-2019-15894)
5. Kupititsa patsogolo: Anasintha kuchuluka kwa baud komwe kumathandizidwa ndi gawo la TWAI kuchokera ku 25 kHz kupita ku 12.5 kHz.
6. Lolani Kutsitsa Boot mode kuyimitsidwa kotheratu pokonza pulogalamu ya eFuse bit UART_DOWNLOAD_DIS. Izi zikakonzedwa kukhala 1, Tsitsani Mawonekedwe a Boot sangathe kugwiritsidwa ntchito ndipo kuwotcha kungalephereke ngati zikhomo zakhazikitsidwa mwanjira iyi. Lembani pa bit 27 ya EFUSE_BLK0_WDATA0_REG, ndikuwerenga pang'ono powerenga 27 ya EFUSE_BLK0_RDATA0_REG. Kuletsa kulemba pagawoli kumagawidwa ndi kulemba disable kwa sh_crypt_cnt eFuse field.

Impact pa Customer Projects

Gawoli cholinga chake ndi kuthandiza makasitomala athu kumvetsetsa momwe chip revision v3.0 imakhudzira mamangidwe atsopano kapena kusintha mtundu wakale wa SoC ndi chip revision v3.0 pamapangidwe omwe alipo.

Gwiritsani Mlandu 1: Kusintha kwa Hardware ndi Mapulogalamu
Umu ndi momwe pulojekiti yatsopano ikuyambitsidwira kapena kukweza kwa hardware ndi mapulogalamu mu polojekiti yomwe ilipo ndi njira yotheka. Zikatero, pulojekitiyi ikhoza kupindula ndi chitetezo ku jekeseni wolakwika ndipo ikhoza kutenganso patsogolotage ya makina atsopano otetezedwa a boot ndi PSRAM cache bug fix ndi PSRAM yopititsa patsogolo ntchito.

1. Kusintha kwa Hardware Design:
   Chonde tsatirani malangizo aposachedwa a Espressif Hardware Design. Pakukhathamiritsa kwa vuto la crystal oscillator 32.768 KHz, chonde onani Gawo Crystal Oscillator kuti mumve zambiri.
2. Kusintha kwa Mapangidwe a Mapulogalamu:
   1) Sankhani Minimum Configuration to Rev3: Pitani ku menuconfig> Conponent config> ESP32-specific, ndipo ikani njira ya Minimum Supported ESP32 Revision kukhala "Rev 3".
   2) Mtundu wa mapulogalamu: Ndibwino kuti mugwiritse ntchito jombo lotetezedwa la RSA kuchokera ku ESP-IDF v4.1 ndi pambuyo pake. Mtundu wa ESP-IDF v3.X Wotulutsidwa ungathenso kugwira ntchito ndi pulogalamu yokhala ndi boot yotetezedwa yoyambirira V1.

Gwiritsani Mlandu Wachiwiri: Kusintha Kwa Hardware Pokha
Izi ndizomwe zimagwiritsidwa ntchito pomwe makasitomala ali ndi pulojekiti yomwe ilipo yomwe ingalole kukweza kwa hardware koma mapulogalamu ayenera kukhala ofanana pakusintha kwa hardware. Pachifukwa ichi, polojekitiyi imapeza phindu lachitetezo pobaya jakisoni, PSRAM cache bug fix ndi 32.768KHz crystal oscillator kukhazikika. Ntchito ya PSRAM ikupitilirabe chimodzimodzi.

1. Kusintha kwa Hardware Design:
   Chonde tsatirani malangizo aposachedwa a Espressif Hardware Design.
2. Kusintha kwa Mapangidwe a Mapulogalamu:
   Makasitomala atha kupitiliza kugwiritsa ntchito mapulogalamu omwewo komanso binary pazinthu zomwe zatumizidwa. Ntchito yofananira ya binary idzagwiranso ntchito pa chip revision v1.0 ndi chip revision v3.0.

Kufotokozera za Label

Chizindikiro cha ESP32-D0WD-V3 chikuwonetsedwa pansipa:
Chithunzi cha ESP32-D0WDQ6-V3 chikuwonetsedwa pansipa:

Kuyitanitsa Zambiri

Pakuyitanitsa zinthu, chonde onani: ESP Product Selector.

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ESPRESSIF ESP32 Chip Revision v3.0 [pdf] Buku Logwiritsa Ntchito ESP32 Chip Revision v3.0, ESP32, Chip Revision v3.0, ESP32 Chip

Maumboni

• Buku Logwiritsa Ntchito