I-ESPRESSIF ESP32 Chip Revision v3.0

Ushintsho Lokuklama Ekubuyekezweni Kwe-Chip v3.0

I-Espressif ikhiphe ushintsho olulodwa lwezinga le-wafer ku-ESP32 Series yemikhiqizo (chip revision v3.0). Lo mbhalo uchaza umehluko phakathi kokubuyekezwa kwe-chip v3.0 nezibuyekezo zangaphambilini ze-ESP32. Ngezansi izinguquko ezinkulu zedizayini ekubuyekezweni kwe-chip v3.0:

1. Ukulungiswa Kwesiphazamisi Senqolobane ye-PSRAM: Kulungisiwe “Lapho i-CPU ifinyelela i-SRAM yangaphandle ngokulandelana okuthile, amaphutha okufunda nokubhala angenzeka.”. Imininingwane yodaba ingatholakala entweni 3.9 ku-ESP32 Series SoC Errata.
2. Kulungisiwe "Lapho i-CPU ngayinye ifunda izikhala zamakheli ezihlukile ngasikhathi sinye, kungenzeka iphutha lokufunda." Imininingwane yodaba ingatholakala entweni 3.10 ku-ESP32 Series SoC Errata.
3. Kuthuthukiswe ukuqina kwecrystal oscillator engu-32.768 KHz, inkinga ibikwe iklayenti ukuthi kunethuba eliphansi lokuthi ngaphansi kokubuyekezwa kwe-chip v1.0 hardware, i-crystal oscillator engu-32.768 KHz ayikwazanga ukuqala kahle.
4. Izinkinga zokujova ezilungisiwe eziphathelene ne-boot evikelekile kanye nokubethelwa kwe-flash ziyalungiswa. Ireferensi: Ukwelulekwa Kwezokuphepha mayelana nomjovo wamaphutha kanye nokuvikela kwe-eFuse
   (CVE-2019-17391) kanye Nokwelulekwa Kwezokuphepha kwe-Espressif Mayelana Nomjovo Wephutha kanye Ne-Secure Boot (CVE-2019-15894)
5. Ukuthuthukiswa: Kushintshwe izinga elincane le-baud elisekelwa imojuli ye-TWAI ukusuka ku-25 kHz ukuya ku-12.5 kHz.
6. Kuvunyelwe Imodi Yokuqalisa Yokulanda ukuthi ikhutshazwe unomphela ngokuhlela ibhithi entsha ye-eFuse UART_DOWNLOAD_DIS. Uma le bit ihlelelwe ku-1, Landa Imodi Yokuqalisa ayikwazi ukusetshenziswa futhi ukuqala kuzohluleka uma amaphinikhodi asethelwe le modi. Uhlelo lwesofthiwe lokhu kancane ngokubhalela ku-bit 27 ye-EFUSE_BLK0_WDATA0_REG, futhi ufunde lokhu kancane ngokufunda ibhithi 27 ye-EFUSE_BLK0_RDATA0_REG. I-Writ disable yale bit kwabelwana ngayo ne-write disable ku-flash_crypt_cnt eFuse field.

Umthelela Kumaphrojekthi Ekhasimende

Lesi sigaba sihloselwe ukusiza amakhasimende ethu ukuthi aqonde umthelela wokusebenzisa i-chip revision v3.0 ekwakhiweni okusha noma ukufaka esikhundleni senguqulo endala ye-SoC nge-chip revision v3.0 ekwakhiweni okukhona.

Sebenzisa Ikesi 1: Izingxenyekazi zekhompuyutha kanye nokuthuthukiswa kwesofthiwe
Lesi yisimo lapho iphrojekthi entsha iqalwa khona noma ithuthukiswa ihadiwe nesoftware kuphrojekthi ekhona kuyindlela engenzeka. Esimeni esinjalo, iphrojekthi ingazuza ekuvikelekeni ekuhlaselweni komjovo wephutha futhi ingathatha i-advantage yendlela entsha yokuqalisa evikelekile kanye nokulungiswa kwesiphazamisi senqolobane ye-PSRAM ngokusebenza okuthuthukisiwe kwe-PSRAM.

1. Izinguquko Zedizayini Yezingxenyekazi zekhompuyutha:
   Sicela ulandele umhlahlandlela wakamuva we-Espressif Hardware Design. Ukuze uthole ukwaziswa okwengeziwe nge-crystal oscillator engu-32.768 KHz, sicela ubhekisele ku-Section Crystal Oscillator ukuze uthole ulwazi olwengeziwe.
2. Izinguquko Zomklamo Wesoftware:
   1) Khetha Ukucushwa Okuncane ku-Rev3: Yiya ku-menuconfig > Conponent config > ESP32-specific, bese usetha inketho Yokubuyekeza I-ESP32 Esekelwe Okuncane ibe "Rev 3".
   2) Inguqulo yesofthiwe: Ncoma ukusebenzisa i-boot evikelekile esekelwe e-RSA evela ku-ESP-IDF v4.1 nakamuva. Inguqulo yokukhishwa ye-ESP-IDF v3.X ingaphinda isebenze nohlelo lokusebenza nge-boot yoqobo evikelekile ye-V1.

Sebenzisa Ikesi 2: Ukuthuthukiswa Kwezingxenyekazi Zekhompyutha Kuphela
Lesi yisimo lapho amakhasimende enephrojekthi ekhona engavumela ukuthuthukiswa kwehadiwe kodwa isoftware idinga ukuhlala injalo kuzo zonke izibuyekezo zehadiwe. Kulokhu iphrojekthi ithola inzuzo yokuphepha ekuhlaselweni komjovo wephutha, ukulungiswa kwesiphazamisi senqolobane ye-PSRAM kanye nenkinga yokuqina kwecrystal oscillator engu-32.768KHz. Ukusebenza kwe-PSRAM kuyaqhubeka nokufana nokho.

1. Izinguquko Zedizayini Yezingxenyekazi zekhompuyutha:
   Sicela ulandele Umhlahlandlela wakamuva we-Espressif Hardware Design.
2. Izinguquko Zomklamo Wesoftware:
   Iklayenti lingaqhubeka nokusebenzisa isofthiwe efanayo nomambambili emikhiqizweni esetshenzisiwe. I-binary application efanayo izosebenza kukho kokubili ukubuyekezwa kwe-chip v1.0 kanye nokubuyekezwa kwe-chip v3.0.

Ukucaciswa Kwelebula

Ilebula ye-ESP32-D0WD-V3 iboniswa ngezansi:
Ilebula ye-ESP32-D0WDQ6-V3 ikhonjisiwe ngezansi:

Uku-oda Ulwazi

Ngoku-oda umkhiqizo, sicela ubheke: Isikhethi Somkhiqizo we-ESP.

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Amadokhumenti / Izinsiza

I-ESPRESSIF ESP32 Chip Revision v3.0 [pdf] Umhlahlandlela Womsebenzisi I-ESP32 Chip Revision v3.0, ESP32, Chip Revision v3.0, ESP32 Chip

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