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ESP8266 Datasheet(PDF) 6 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. |
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ESP8266 Datasheet(HTML) 6 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. |
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6 / 117 page ![]() 6.1. Functional Overview 51 ................................................................................................................. 6.2. ESP8266 SPI Slave Protocol Format 51 ....................................................................................... 6.2.1. SPI Slave Clock Polarity Configuration 51 ...................................................................... 6.2.2. Communication Format Supported by The SPI Slave 51 ................................................ 6.3. Slave Status Definition and Line Breakage 52 .............................................................................. 6.3.1. Status Definition 52 ......................................................................................................... 6.3.2. GPIO0 Line Breakage 52 ................................................................................................. 6.4. ESP8266 SPI Slave API Functions 52 ........................................................................................... 7. SPI Wi-Fi Passthrough 2-Interrupt Mode 58 ............................................................................. 7.1. Functional Overview 58 ................................................................................................................. 7.2. ESP8266 SPI Slave Protocol Format 58 ....................................................................................... 7.2.1. SPI Slave Clock Polarity Configuration 58 ...................................................................... 7.2.2. Communication Format Supported by The SPI Slave 58 ................................................ 7.3. Instruction on The Data Flow Control Line 59 ............................................................................... 7.3.1. GPIO0 MOSI Buffer Status 59 ......................................................................................... 7.3.2. GPIO2 Master Receives The Slave Send Buffer Status 59 ............................................. 7.3.3. Master Communication Logic Implementation 59 ........................................................... 7.4. ESP8266 SPI Slave API Functions 61 ........................................................................................... 8. HSPI Host Multi-device API 64 .................................................................................................. 8.1. Functional Overview 64 ................................................................................................................. 8.2. Hardware Connection 64 .............................................................................................................. 8.3. API Description 65 ........................................................................................................................ 9. I2C User Guide 67 ..................................................................................................................... 9.1. Functional Overview 67 ................................................................................................................. 9.2. I2C master Interface 67 ................................................................................................................. 9.2.1. Initialization 67 ................................................................................................................. 9.2.2. Start I2C 67 ...................................................................................................................... 9.2.3. Stop I2C 68 ...................................................................................................................... 9.2.4. I2C Master Responds ACK 68 ......................................................................................... 9.2.5. I2C Master Responds NACK 68 ...................................................................................... 9.2.6. Check I2C Slave Response 69 ........................................................................................ 9.2.7. Write Data on I2C Bus 69 ................................................................................................ 9.2.8. Read Data from I2C Bus 69 ............................................................................................. 9.3. Demo 69 ........................................................................................................................................ |
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