ESP8266 hspi.pdf

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ESP8266 1 2 GPIO ESP8266 GPIO 3 SDIO SPI SDIO DEMO ESP8266 STM32 4 SPI SPI SPI API 5 SPI Overlap DEMO SPI API DEMO 6 SPI 7 SPI 8 HSPI SPI API SPI API HSPI API 9 I2C I2C master 10 I2S I2S 11 UART 12 PWM 13 IR 14 Sniffer UART PWM pwm.h Sniffer APP IOT- device GPIO SPI UART 2016.05 2016.06 V1.0 V1.1 4.5 SPI

2016.08 2017.05 V1.2 V1.3 14.1 Sniffer 4.1.2 SPI

1. 1.1. GPIO 1.2. SDIO 1.3. SPIHSPI ......................................................................................................................................... ................................................................................................... ............................................................................................ ..................................................................................................... ............................................................................................... ............................................................................................................... ...................................................................................................................................... ...................................................................................................................................... .......................................................................................................... .............................................................................................................. ................................................................................................................................. ......................................................................................................................................... 1.4. 1.5. 1.6. UART 1.7. PWM 1.8. 1.9. Sniﬀer 1.3.1. SPI 1.3.2. HSPI I2C I2S IR 1 1 1 1 2 2 2 3 3 4 4 5 2. GPIO 2.1. 2.2. GPIO 2.2.1. GPIO 2.2.2. GPIO 2.2.3. GPIO 2.2.4. GPIO 2.2.5. GPIO16 ....................................................................................................................................... ..................................................................................................................................... ........................................................................................................................ ................................................................................................... .......................................................................................................... .......................................................................................................... .......................................................................................................... .......................................................................................................... ..................................................................................................................................... ................................................................................................... ................................................................................................... ................................................................................................... ................................................................................................ 2.3.1. 1 2.3.2. 2 2.3.3. 3 2.3.4. 6 6 7 7 7 8 8 9 9 10 10 11 12 2.3.

2.3.5. ................................................................................................ 13 3. SDIO SPI 3.1. 3.2. DEMO 3.2.1. 3.2.2. ESP8266 3.2.3. ESP8266 FLASH 3.2.4. ESP8266 FLASH ....................................................................................................... ................................................................................................................................... ....................................................................................................................... ...................................................................................................................... .................................................................................... ...................................................................................... ...................................................................................... ............................................................................................................... ...................................................... .................................................................................. ........................................................................... ................................................................................................................... .............................................................................................................. 3.3.1. SDIO SDIO 3.3.2. 3.3.3. ESP8266 DEMO API 3.3. ESP8266 3.4. STM32 3.4.1. 14 14 14 14 14 15 15 16 16 17 18 19 19 4. SPI 4.1. 4.2. ESP8266 SPI 4.1.1. 4.1.2. SPI 4.2.1. SPI 4.2.2. API SPI .................................................................................................................. .......................................................................................................................................... ...................................................................................................................... ...................................................................................................................... ..................................................................................................... ............................................................................................. ............................................................................. ..................................................................................................... ......................................................................................... ............................................................................................. ................................................................................................. ............................................................................. .............................................................................................................. ................................................................................................ 4.3.1. SPI 4.3.2. SPI 4.3.3. SPI 4.3.4. API SPI 4.4.1. SPI API 22 22 22 22 22 22 23 23 23 23 23 24 24 24 4.3. ESP8266 SPI 4.4. SPI API

4.5. SPI 4.4.2. SPI API ................................................................................................ ............................................................................................................................ ...................................................................................................................... ...................................................................................................................... ....................................................................................................... 4.5.1. 4.5.2. 4.5.3. SPI_Test 26 28 29 31 37 5. SPI Overlap DEMO 5.1. 5.2. SPI OVERLAP 5.3. SPI OVERLAP API 5.4. DEMO .............................................................................. ................................................................................................................................... ............................................................................................. ................................................................................................ ......................................................................................................... ...................................................................................................................... ............................................................................................................... .............................................................................................................. 5.4.1. 5.4.2. API 5.4.3. 48 48 49 49 50 50 50 52 6. SPI 6.1. 6.2. ESP8266 SPI 6.2.1. SPI 6.2.2. SPI ........................................................................................................... ................................................................................................................................... ..................................................................................................... ......................................................................................... ............................................................................................. ...................................................................................................... ...................................................................................................................... ...................................................................................................... .............................................................................................. 53 53 53 53 53 54 54 54 54 6.3. 6.3.1. 6.3.2. GPIO0 6.4. ESP8266 SPI API 7. SPI 7.1. 7.2. ESP8266 SPI ........................................................................................................... ................................................................................................................................... ..................................................................................................... ......................................................................................... ............................................................................................. 7.2.1. SPI 7.2.2. SPI 60 60 60 60 60

7.3. 7.3.1. GPIO0 7.3.2. GPIO2 7.3.3. ............................................................................................................. ............................................................................. ............................................................................. ....................................................................................................... .............................................................................................. 60 61 61 61 63 7.4. ESP8266 SPI API 8. HSPI ................................................................................................... ................................................................................................................................... ................................................................................................................................... ................................................................................................................................... 66 66 66 67 8.1. 8.2. 8.3. API 9. I2C 9.1. 9.2. ........................................................................................................................ ................................................................................................................................... ........................................................................................................................ ......................................................................................................................... ...................................................................................................................... ...................................................................................................................... ....................................................................................................... .................................................................................................... ....................................................................................................... ....................................................................................................... ....................................................................................................... ................................................................................................................................... I2C master 9.2.1. I2C 9.2.2. I2C 9.2.3. I2C ACK 9.2.4. 9.2.5. I2C NACK 9.2.6. I2C 9.2.7. I2C 9.2.8. I2C 68 68 68 68 68 69 69 70 70 70 71 71 9.3. 10.I2S 10.1. 10.2. ......................................................................................................................... ................................................................................................................................... ................................................................................................................................... ............................................................................................................... ...................................................................................................................... .............................................................................................................. 10.2.1. I2S 10.2.2. 10.2.3. SLC 73 73 73 73 76 77

10.3. ............................................................................................................................ ...................................................................................................................... ...................................................................................................................... ...................................................................................................................... 77 78 78 79 10.3.1. 10.3.2. 10.3.3. 11.UART 11.1. 11.2. 11.3. 11.3.1. 11.3.2. 11.3.3. 11.3.4. 11.3.5. 11.3.6. 11.3.7. tx/rx 11.3.8. loop-back 11.3.9. 11.3.10. 11.3.11. ..................................................................................................................... ................................................................................................................................... ................................................................................................................................... ................................................................................................................................... ......................................................................................................................... ......................................................................................................................... ......................................................................................................................... ......................................................................................................................... ............................................................................................................................. ................................................................................................ ............................................................................ .............................................................................................. .................................................................................................................. ..................................................................................................................... ..................................................................................................................... ................................................................................................................................... .................................................................................................................. ............................................................................................................................. ............................................................................................................... .............................................................................................................. ....................................................................................................... ........................................................................................................... ........................................................................................................... ....................................................................................................... 11.4.1. 11.4.2. 11.4.3. full 11.4.4. 11.4.5. tout 11.4.6. ﬁfo 11.4.7. 11.4.8. 80 80 81 81 81 82 82 82 82 83 83 83 83 83 84 84 84 85 85 86 86 87 87 88 11.4.

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