M4랑 비근하지만 M7 보단 낮은 수준?
| As I've understood, Extensa LX6 (esp32 CPU) is aprox. on par with Cortex M4, but below M7 |
[링크 : https://www.esp32.com/viewtopic.php?t=5093]
아키텍쳐 종류는 파악 불가 ㅠㅠ
[링크 : https://en.wikipedia.org/wiki/Tensilica]
| There are 2 CPU cores that can be individually controlled or powered, and the clock frequency is adjustable from 80 MHz to 240 MHz ESP32 contains two low-power Xtensa® 32-bit LX6 microprocessors. The internal memory includes: • 448 KBytes ROM for booting and core functions. • 520 KBytes on-chip SRAM for data and instruction. • 8 KBytes SRAM in RTC, which is called RTC SLOW Memory and can be accessed by the co-processor during the Deep-sleep mode. • 8 KBytes SRAM in RTC, which is called RTC FAST Memory and can be used for data storage and accessed by the main CPU during RTC Boot from the Deep-sleep mode. • 1 Kbit of EFUSE, of which 256 bits are used for the system (MAC address and chip configuration) and the remaining 768 bits are reserved for customer applications, including Flash-Encryption and Chip-ID. |
[링크 : https://www.es.co.th/Schemetic/PDF/ESP32.PDF]
6*6 36핀 인가?
[링크 : https://www.reddit.com/r/esp32/comments/b6wyjt/aithinker_esp32cam_schematic/]
공식 홈페이지 링크
[링크 : https://docs.ai-thinker.com/en/esp32-cam]
[링크 : https://docs.ai-thinker.com/_media/esp32/docs/esp32-cam_product_specification_zh.pdf]
[링크 : https://docs.ai-thinker.com/_media/esp32/docs/esp32_cam_sch.pdf]
SPI 32Mbit (4MB)
RAM 520KB + 8MB PSRAM
FreeRTOS + LWIP
[링크 : https://docs.ai-thinker.com/_media/esp32/docs/esp32-cam_product_specification_zh.pdf]
[링크 : http://www.ai-thinker.com/pro_view-24.html]
정리하고 보니 얘는 ESP32S가 아닌 ESP32 인듯. 패키지가 QFN77 정도는 되어야 하는데 작음.
ESP32-D0WD-V3 / 240 MHz / 600 MIPS / Dual core
ESP32-D0WDQ6-V3 / 240 MHz / 600 MIPS / Dual core
ESP32-D0WD / 240 MHz / 600 MIPS / Dual core
ESP32-D0WDQ6 / 240 MHz / 600 MIPS / Dual core
ESP32-D2WD / 160 MHz / 400 MIPS / Dual core
ESP32-S0WD / 160 MHz / 200MIPS / Single core
ESP32-U4WDH / 160 MHz / 200MIPS / Single core
[링크 : https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf]
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