ESP8285

ESP8285 1.0 © 2016 ESP8285 1 ESP8285 2 ESP8285 3 4 ESP8285 5 ESP8285 6 ESP8285 2016.03 CPU Wi-Fi V1.0 1. ......................................................................................................................................... 1 1.1. Wi-Fi .................................................................................................................................2 1.2. ................................................................................................................................... 3 1.3. ..........................................................................................................................................4 2. .................................................................................................................................5 3. .................................................................................................................................7 3.1. CPU .................................................................................................................... 7 3.1.1. CPU ............................................................................................................................7 3.1.2. ..................................................................................................................... 7 SPI 3.1.3. 3.2. 3.3. 3.4. AHB AHB .............................................................................................................8 ..................................................................................................................... 8 ..........................................................................................................................................8 3.3.1. ..................................................................................................................... 8 3.3.2. ...................................................................................................... 9 ..........................................................................................................................................9 3.4.1. ..................................................................................................................... 9 3.4.2. 2.4 GHz ........................................................................................................ 10 3.4.3. 2.4 GHz ........................................................................................................ 10 3.4.4. ............................................................................................................... 10 3.5. Wi-Fi .......................................................................................................................................10 3.6. .............................................................................................................................11 .............................................................................................................................. 13 4. 4.1. GPIO / 4.2. 4.3. SDIO SPI/HSPI 4.3.1. 4.3.2. SPI HSPI ............................................................................................... 13 ...........................................................................................13 .................................................................................................... 13 ..........................................................................................14 ...........................................................................................................14 4.4. I2C .................................................................................................................................. 14 4.5. I2S .................................................................................................................................. 15 4.6. UART PWM 4.7. 4.8. IR 4.9. ADC ..........................................................................................................16 .............................................................................................................................16 ...........................................................................................................17 4.10. LED Light Button .......................................................................................................18 ...............................................................................................................................19 5. 5.1. ................................................................................................................................. 19 5.2. ........................................................................................................................................19 Wi-Fi 5.3. ........................................................................................................................20 ...............................................................................................................................21 6. I. ......................................................................................................15 - ..................................................................................................................... 22 1. " 1. ESP8285 Wi-Fi ESP8285 Wi-Fi MCU ESP8285 ESP8285 SPI/SDIO I2C/UART ESP8285 Wi-Fi balun PCB ESP8285 Tensilica’s L106 ESP8285 GPIO 32 SRAM SDK ESCP-Espressif Systems’ Smart Connectivity Platform / / LCD Espressif /DDR/LVDS/ 
 " /"23 1 2016.04 1. " 1.1. Wi-Fi • 802.11 b/g/n/e/i • Wi-Fi Direct (P2P) • P2P P2P Infrastructure BSS • • P2P CCMP (CBC-MAC, • WPA/WPA2 PSK Station Soft AP ), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC WPS • 802.11 i TSN TLS PEAP • • 802.11n • MIMO 1×1 • WMM /P2P LEAP SIM AKA 2.4 GHz 2×1 STBC A- MPDU A-MSDU 0.4μs U-APSD 802.11e • QoS • UMA • 802.1h/RFC1042 • DMA Zero Copy CPU • 802.11 • SNR • • MAC • PTA • Wi-Fi Wi-Fi/ • Espressif " /"23 2 2016.04 1. " 1.2. 1-1. FCC/CE/TELEC/SRRC 802.11 b/g/n/e/i 2.4 G 2.5 G (2400 M 2483.5 M) 802.11 b: +20 dBm 802.11 g: +17 dBm Wi-Fi 802.11 n: +14 dBm 802.11 b: -91 dbm (11 Mbps) 802.11 g: -75 dbm (54 Mbps) 802.11 n: -72 dbm (MCS7) PCB , , IPEX , Tensilica L106 32 CPU UART/SDIO/SPI/I2C/I2S/IR GPIO/ADC/PWM 3.0 V 3.6 V 80 mA -40°C ~ 125°C -40°C ~ 125°C 5 mm x 5 mm N/A Station/SoftAP/SoftAP+Station Wi-Fi WPA/WPA2 WEP/TKIP/AES UART Download / OTA Cloud Server Development / IPv4 AT+ Espressif " /"23 3 SDK TCP/UDP/HTTP/FTP , , Android/iOS APP 2016.04 1. " 1.3. Espressif 
 • • IP • • • • • Mesh • • • • • " /"23 4 ID 
 2016.04 2. " 2. 2-1 ! 2-1. 2-1 2-1. Espressif 1 VDDA P 3.0 V ~ 3.6 V 2 LNA I/O 3 VDD3P3 P 3.0 V ~ 3.6 V 4 VDD3P3 P 3.0 V ~ 3.6 V 5 VDD_RTC P NC (1.1 V) 6 TOUT I ADC Pin4) 7 CHIP_PU I 50 Ω π ADC TOUT (Pin6) ( VDD3P3 (Pin3, ) ; " /"23 5 2016.04 2. " 8 XPD_DCDC I/O 9 MTMS I/O GPIO14; HSPI_CLK 10 MTDI I/O GPIO12; HSPI_MISO 11 VDDPST P 12 MTCK I/O GPIO13; HSPI_MOSI; UART0_CTS 13 MTDO I/O GPIO15; HSPI_CS; UART0_RTS 14 GPIO2 I/O 15 GPIO0 I/O GPIO0; SPI_CS2 16 GPIO4 I/O GPIO4 17 VDDPST P 18 SDIO_DATA_2 I/O SD_D2 200 Ω PIHD HSPIHD GPIO9 19 SDIO_DATA_3 I/O SD_D3 200 Ω SPIWP 20 SDIO_CMD I/O SD_CMD 21 SDIO_CLK I/O SD_CLK 22 SDIO_DATA_0 I/O SD_D0 23 SDIO_DATA_1 I/O SD_D1 24 GPIO5 I/O 25 U0RXD I/O UART Rx GPIO3 26 U0TXD I/O UART Tx 27 XTAL_OUT I/O 28 XTAL_IN I/O 29 VDDD P 3.0 V ~ 3.6 V 30 VDDA P 3.0 V ~ 3.6 V 31 RES12K I 32 EXT_RSTB I GPIO2 Espressif GPIO0 MTDO GPIO16 /IO 1.8V ~ 3.3V UART1_TX /IO GPIO2 1.8V ~ 3.3V 200 Ω 200 Ω HSPIWP SPI_CS0 GPIO10 GPIO11 SPI_CLK GPIO6 200 Ω SPI_MSIO GPIO7 200 Ω SPI_MOSI GPIO8 GPIO5 GPIO1 SPI_CS1 BT 12 kΩ 3 SDIO " /"23 6 2016.04 3. " 3. ESP8285 3-1 RF receive MAC Analog receive Interface UART RF transmit PLL Analog transmit VCO PMU 1/2 Digital baseband GPIO Switch RF balun Registers I2S Bias circuits SDIO Sequencers PWM ADC Accelerator PLL Crystal I2C CPU SPI SRAM PMU Flash 3-1. 3.1. CPU 3.1.1. CPU ESP8285 Tensilica L106 80 MHz 20% 32 MCU 16 160 MHz RTOS MIPS Wi-Fi CPU RAM/ROM • RAM • • RSIC CPU (iBus) (dBus) AHB 3.1.2. ESP8285 ROM SRAM MCU iBus dBus AHB SDK Data Espressif SRAM ESP8285 Station Heap + 50 kB " /"23 7 2016.04 3. " 3.1.3. SPI ESP8285 SPI 1 Mbyte • • SPI 3.2. AHB AHB AHB MAC SDIO CPU AHB AHB • APB • APB APB ESP8285 APB (RTC) SI/SPI SDIO GPIO UART MAC 3.3. 3.3.1. ESP8285 Tx 26 MHz Rx 52 MHz Wi-Fi 3-1 3-1. FXO 26 CL Espressif 52 MHz 32 pF CM 2 5 pF RS 0 65 Ω ΔFXO -15 15 ppm " /"23 8 2016.04 3. " ΔFXO,Temp (-25°C ~ 75°C) -15 15 ppm 3.3.2. 26 MHz 52 MHz 3-2 3-2. @ 1kHz VXO 0.2 1 Vpp ΔFXO,EXT -15 15 ppm -120 dBc/Hz -130 dBc/Hz -138 dBc/Hz , 40 MHz @ 10 kHz @ 100 kHz , 40 MHz , 40 MHz 3.4. ESP8285 • 2.4 GHz • 2.4 GHz • • • • 3.4.1. IEEE802.11b/g/n 3-3. (MHz) Espressif (MHz) 1 2412 8 2447 2 2417 9 2452 3 2422 10 2457 " /"23 9 2016.04 3. " (MHz) 3.4.2. (MHz) 4 2427 11 2462 5 2432 12 2467 6 2437 13 2472 7 2442 14 2484 2.4 GHz 2.4 GHz 2 ADC ESP8285 AGC 3.4.3. DC 2.4 GHz 2.4 GHz 2.4 GHz CMOS 802.11b +19.5 dBm 802.11n +16 dBm ESP8285 • • I/Q • 3.4.4. 2.4 GHz 3.5. Wi-Fi ESP8285 TCP/IP 802.11 b/g/n/e/i WLAN MAC DCF Wi-Fi P2P P2P Wi-Fi Direct BSS ESP8285 • RTS/CTS Espressif " /"23 10 2016.04 3. " • • • • 802.11h/RFC 1042 • • P2P Wi-Fi direct P2P 3.6. ESP8285 ESP8285 RTC 20 μA 1.0 mA (DTIM = 3) 0.6 mA (DTIM = 10) CHIP_PU CHIP_PU Off Sleep Criteria Sleep Criteria Deep Sleep Sleep XTAL Off WAKEUP Events Wakeup XTAL_SETTLE CPU On Work Tx Rx 3-2. • Espressif CHIP_PU RTC " /"23 11 2016.04 3. " RTC • RTC Wi-Fi RTC • MAC RTC PWR • PLL • CPU WAITI CPU Espressif " /"23 12 2016.04 4. " 4. 4.1. GPIO ESP8285 17 GPIO GPIO / CPU IO I2C I2S UART PWM IR GPIO IO IO 5 μA 4.2. / ESP8285 SDIO v1.1 SDIO 1 4 SDIO 4-1 4 25 MHz 50 MHz SDIO v2.0 4-1. SDIO 管脚名 管脚 IO 功能名 SDIO_CLK 21 IO6 SDIO_CLK SDIO_DATA0 22 IO7 SDIO_DATA0 SDIO_DATA1 23 IO8 SDIO_DATA1 SDIO_DATA_2 18 IO9 SDIO_DATA_2 SDIO_DATA_3 19 IO10 SDIO_DATA_3 SDIO_CMD 20 IO11 SDIO_CMD SPI/HSPI 4.3. ESP8285 1 SPI 1 SDIO/SPI 1 HSPI Espressif " /"23 13 2016.04 4. " 4.3.1. SPI 4-2. SPI IO SDIO_CLK 21 IO6 SPICLK SDIO_DATA0 22 IO7 SPIQ/MISO SDIO_DATA1 23 IO8 SPID/MOSI SDIO_DATA_2 18 IO9 SPIHD SDIO_DATA_3 19 IO10 SPIWP U0TXD 26 IO1 SPICS1 GPIO0 15 IO0 SPICS2 SPI 4.3.2. 80 MHz HSPI 4-3. HSPI IO MTMS 9 IO14 HSPICLK MTDI 10 IO12 HSPIQ/MISO MTCK 12 IO13 HSPID/MOSI MTDO 13 IO15 HPSICS 4.4. I2C ESP8285 1 I2C I2C 4-4 4-4. I2C IO ESP8285 MTMS 9 IO14 I2C_SCL GPIO2 14 IO2 I2C_SDA I2C I2C I2C 100 kHz Espressif " /"23 14 2016.04 4. " 4.5. I2S ESP8285 1 I2S 1 I2S I2S LED 4-5 I2C WS2812 I2S GPIO DMA 4-5. I2S I2S IO MTDI 10 IO12 I2SI_DATA MTCK 12 IO13 I2SI_BCK MTMS 9 IO14 I2SI_WS MTDO 13 IO15 I2SO_BCK U0RXD 25 IO3 I2SO_DATA GPIO2 14 IO2 I2SO_WS 4.6. UART ESP8285 UART UART0 UART 4-6 4-6. UART IO UART0 UART1 2 U0RXD 25 IO3 U0RXD U0TXD 26 IO1 U0TXD MTDO 13 IO15 U0RTS MTCK 12 IO13 U0CTS GPIO2 14 IO2 U1TXD SD_D1 23 IO8 U1RXD UART 115200*40 (4.5 Mbps) UART0 UART1 log Espressif " /"23 15 2016.04 4. " UART0 40 MHz 115200 74880 26 MHz U0TXD U0RXD U0RTS(MTDO) U0CTS(MTCK) 4.7. PWM ESP8285 4 PWM 4-7 4-7. PWM IO MTDI 10 IO12 PWM0 MTDO 13 IO15 PWM1 MTMS 9 IO14 PWM2 GPIO4 16 IO4 PWM3 PWM LED 44ns 100Hz 1 kHz PWM PWM 1000 μs PWM 1 kHz 10000 μs 1/22727, 1 kHz 14 4.8. IR ESP8285 1 IR 4-8 4-8. IR IO MTMS 9 IO14 IR Tx GPIO5 24 IO5 IR Rx IR NEC 1/3 1m 15° Espressif " /"23 16 38 kHz 2 GPIO 30° 2016.04 4. " 4.9. ADC ESP8285 10 SAR ADC TOUT 6 4-9 127 Bytes 107 byte 4-9. ADC 6 TOUT ADC 6 TOUT VDD3P3 • ADC 3 4 TOUT esp_init_data_default.bin “vdd33_const“ 0 0xFF VDD3P3 3 4 system_get_vdd33 TOUT • system_adc_read 6 TOUT 0 esp_init_data_default.bin (0 ∼ 127 Bytes) 3 1.0V 107 byte (vdd33_const) 4 ESP8285  “vdd33_const“ 1.8V ~ 3.6V  “vdd33_const“ 18 36 “vdd33_const“ ±0.2V system_get_vdd33 SDK esp_init_data_default.bin esp_init_data_default.bin Espressif vdd33_const = 0xff • 18 =< vdd33_const =< 36 • vdd33_const < 18 system_adc_read 0 ~ 127 Bytes 107 byte • 0.1V ”vdd33_const” ESP8285 VDD3P3 ESP8285 4 vdd33_const/10 36 < vdd33_const < 255 " /"23 17 3 ESP8285 3.0V 2016.04 4. " 4.10. LED Light ESP8285 Button 17 GPIO LED ESP8285 LED 4-10. LED Button Button GPIO 4-10 Button IO MTCK 12 IO13 Button GPIO0 15 IO0 Wi-Fi Light MTDI 10 IO12 Link Light Button GPIO0 2 LED Wi-Fi MTCK MTDI ESP8285 / Espressif " /"23 18 2016.04 5. " 5. 5.1. 5-1. I/O - -40 125 ℃ IPC/JEDEC J-STD-020 - - 260 ℃ - 3.0 3.3 3.6 V VIL/VIH - -0.3/0.75VIO - 0.25VIO/3.6 VOL/VOH - N/0.8VIO - 0.1VIO/N IMAX - - - 12 mA TAMB=25℃ - - 2 KV TAMB=25℃ - - 0.5 KV V 5.2. 5-2. Espressif Tx802.11b, CCK 11Mbps, P OUT=+17 dBm - 170 - mA Tx 802.11g, OFDM 54 Mbps, P OUT =+15 dBm - 140 - mA Tx 802.11n, MCS7, P OUT =+13 dBm - 120 - mA Rx 802.11b 1024 Bytes -80 dBm - 50 - mA Rx 802.11g 1024 Bytes -70 dBm - 56 - mA Rx 802.11n 1024 Bytes -65 dBm - 56 - mA Modem-Sleep - 15 - mA Light-Sleep - 0.9 - mA Deep-Sleep - 10 - μA - 0.5 - μA " /"23 19 2016.04 5. " • Modem-Sleep CPU PWM 802.11 • DTIM3 300ms Light-Sleep CPU 802.11 300ms • (U-APSD) ( U-APSD) 3ms AP Beacon Wi-Fi AP Wi-Fi 15mA Wi-Fi Wi-Fi Modem 3ms I2S Wi-Fi Modem CPU Beacon DTIM3 0.9 mA Wi-Fi Deep-Sleep 100 300s 0.3 1s AP 1mA 5.3. Wi-Fi 5-3 3.3 V 1.1 V 5-3. Wi-Fi 2412 - 2484 MHz - 50 - Ω - - -10 dB 15.5 16.5 17.5 dBm 19.5 20.5 21.5 dBm - - - DSSS, 1 Mbps - -98 - dBm CCK, 11 Mbps - -91 - dBm 6 Mbps (1/2 BPSK) - -93 - dBm 54 Mbps (3/4 64-QAM) - -75 - dBm HT20, MCS7 (65 Mbps, 72.2 Mbps) - -72 - dBm OFDM, 6 Mbps - 37 - dB OFDM, 54 Mbps - 21 - dB HT20, MCS0 - 37 - dB HT20, MCS7 - 20 - dB 72.2 Mbps 11b Espressif PA PA " /"23 20 2016.04 6. " 6. 6-1. ESP8285 Espressif " /"23 21 2016.04 " I. • • • • • INST_NAME eagle_soc.h IO_MUX REGISTER MTDI_U PERIPHS_IO_MUX_MTDI_U • Net Name • 1 • - Espressif 5 SDK 0 4 MTDI GPIO12 #define FUNC_GPIO12 3 //defined in eagle_soc.h PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U,FUNC_GPIO12) " /"23 22 2016.03 URL “ ” Wi-Fi IOT www.espressif.com Wi-Fi © 2016 Bluetooth SIG