ESPRESSIF ESP32 Chip Revision v3.0

Dhizaini Shanduko muChip Revision v3.0

Espressif yakaburitsa imwe wafer-level shanduko paESP32 Series yezvigadzirwa (chip revision v3.0). Gwaro iri rinotsanangura mutsauko pakati pe chip revision v3.0 uye yapfuura ESP32 chip revisions. Pazasi pane makuru dhizaini shanduko mu chip revision v3.0:

1. PSRAM Cache Bug Fix: Yakagadziriswa "Kana iyo CPU ikawana yekunze SRAM mune imwe kutevedzana, kuverenga nekunyora zvikanganiso zvinogona kuitika.". Tsanangudzo yenyaya inogona kuwanikwa muchinhu 3.9 muESP32 Series SoC Errata.
2. Yakagadziriswa "Kana CPU yega yega ichiverenga dzimwe nzvimbo dzakasiyana dzekero panguva imwe chete, kukanganisa kuverenga kunogona kuitika." Tsanangudzo yenyaya inogona kuwanikwa muchinhu 3.10 muESP32 Series SoC Errata.
3. Yakagadziridzwa 32.768 KHz crystal oscillator kugadzikana, nyaya yakashumwa nemutengi kuti pane mukana wakaderera wekuti pasi pe chip revision v1.0 hardware, iyo 32.768 KHz crystal oscillator haina kukwanisa kutanga nemazvo.
4. Yakagadziriswa Mhosva jekiseni nyaya dzinenge dzakachengeteka bhutsu uye flash encryption dzakagadziriswa. Reference: Chengetedzo Advisory ine chekuita nekukanganisa jekiseni uye eFuse dziviriro
   (CVE-2019-17391) & Espressif Chengetedzo Advisory Nezve Mhosva jekiseni uye Yakachengeteka Boot (CVE-2019-15894)
5. Kuvandudza: Yakachinja huwandu hushoma hwebaud inotsigirwa neTWAI module kubva pa25 kHz kuenda ku12.5 kHz.
6. Inotenderwa Kudhawunirodha Boot mode kuti ivharwe zvachose nekugadzira itsva eFuse bit UART_DOWNLOAD_DIS. Kana bhiti iri rakarongerwa ku1, Dhawunirodha Boot mode haigone kushandiswa uye kubhowa kunotadza kana mapini ekusunga akagadzirirwa iyi modhi. Chirongwa cheSoftware zvishoma nekunyora ku bit 27 yeEFUSE_BLK0_WDATA0_REG, uye verenga zvishoma izvi nekuverenga bit 27 yeEFUSE_BLK0_RDATA0_REG. Nyora inodzimwa pane iyi bhiti yakagovaniswa nekunyora disable kune iyo sh_crypt_cnt eFuse field.

Impact paCustomer Projects

Ichi chikamu chakaitirwa kubatsira vatengi vedu kuti vanzwisise kukanganisa kwekushandisa chip revision v3.0 mune nyowani dhizaini kana kutsiva yekare vhezheni SoC ne chip revision v3.0 mune iripo dhizaini.

Shandisa Nyaya 1: Hardware uye Software Upgrade
Iyi ndiyo nzira yekushandisa iyo purojekiti nyowani iri kutangwa kana kukwidziridzwa yehardware uye software mupurojekiti iripo isarudzo inogoneka. Mumamiriro ezvinhu akadaro, chirongwa chinogona kubatsirwa kubva padziviriro kubva pakurwiswa kwejekiseni remhosva uye chinogonawo kutora advantage yeitsva yakachengeteka bhutsu mashini uye PSRAM cache bug inogadzirisa ine yakawedzera kukwidziridzwa PSRAM kuita.

1. Hardware Design Shanduko:
   Ndokumbira uteedzere yazvino Espressif Hardware Dhizaini Yekutungamira. Kune 32.768 KHz crystal oscillator kugadzikana nyaya optimization, ndapota tarisa kune Chikamu Crystal Oscillator kuti uwane rumwe ruzivo.
2. Software Dhizaini Shanduko:
   1) Sarudza Minimum configuration kuRev3: Enda ku menuconfig> Conponent config> ESP32-chaiyo, uye isa iyo Minimum Inotsigirwa ESP32 Revision sarudzo ku "Rev 3".
   2) Shanduro yeSoftware: Kurudzira kushandisa RSA-based yakachengeteka boot kubva kuESP-IDF v4.1 uye gare gare. ESP-IDF v3.X Release version inogonawo kushanda neapplication ine yepakutanga yakachengeteka bhutsu V1.

Shandisa Nyaya yechipiri: Hardware Upgrade Chete
Iyi ndiyo nzira yekushandisa apo vatengi vane purojekiti iripo iyo inogona kubvumira hardware kukwidziridzwa asi software inoda kuramba yakafanana pakudzokorora kwehardware. Muchiitiko ichi purojekiti inowana bhenefiti yekuchengetedzwa kune kukanganisa jekiseni kurwiswa, PSRAM cache bug kugadzirisa uye 32.768KHz crystal oscillator kugadzikana nyaya. Kuita kwePSRAM kunoramba kwakafanana zvakadaro.

1. Hardware Design Shanduko:
   Ndokumbira uteedzere yazvino Espressif Hardware Dhizaini Yekutungamira.
2. Software Dhizaini Shanduko:
   Mutengi anogona kuenderera mberi nekushandisa iyo yakafanana software uye bhinari kune zvakaiswa zvigadzirwa. Iyo imwechete application binary ichashanda pane ese chip revision v1.0 uye chip revision v3.0.

Label Tsanangudzo

Iyo label yeESP32-D0WD-V3 inoratidzwa pazasi:
Iyo ESP32-D0WDQ6-V3 inoratidzwa pazasi:

Kuraira Ruzivo

Nekuodha kwechigadzirwa, ndapota tarisa kune: ESP Product Selector.

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Espressif IoT Team www.espressif.com

Zvinyorwa / Zvishandiso

ESPRESSIF ESP32 Chip Revision v3.0 [pdf] Bhuku reMushandisi ESP32 Chip Revision v3.0, ESP32, Chip Revision v3.0, ESP32 Chip

References

• User Manual