main/u8g2_esp32_hal.h@090b9d36b7a1 (annotated)
main/u8g2_esp32_hal.h
Thu, 21 Nov 2019 22:19:27 +0100
- author
- Michiel Broek <mbroek@mbse.eu>
- date
- Thu, 21 Nov 2019 22:19:27 +0100
- changeset 35
- 090b9d36b7a1
- parent 30
- 8b630bf52092
- child 37
- 358bbd5b608e
- permissions
- -rw-r--r--
I2C busspeed from 50 KHz to 400 KHz.
| 30 | 1 | /** |
| 2 | * @file u8g2_esp32_hal.h | |
| 3 | * @date Feb 12, 2017 | |
| 4 | * @author kolban | |
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5 | */ |
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6 | |
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7 | #ifndef U8G2_ESP32_HAL_H_ |
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8 | #define U8G2_ESP32_HAL_H_ |
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9 | #include "u8g2.h" |
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10 | |
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11 | #include "driver/gpio.h" |
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12 | #include "driver/spi_master.h" |
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13 | #include "driver/i2c.h" |
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14 | |
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15 | #define U8G2_ESP32_HAL_UNDEFINED (-1) |
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16 | |
| 30 | 17 | #define I2C_MASTER_NUM I2C_NUM_1 ///< I2C port number for master dev |
| 18 | #define I2C_MASTER_TX_BUF_DISABLE 0 ///< I2C master do not need buffer | |
| 19 | #define I2C_MASTER_RX_BUF_DISABLE 0 ///< I2C master do not need buffer | |
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20 | #define I2C_MASTER_FREQ_HZ 400000 ///< I2C master clock frequency (original 50000) |
| 30 | 21 | #define ACK_CHECK_EN 0x1 ///< I2C master will check ack from slave |
| 22 | #define ACK_CHECK_DIS 0x0 ///< I2C master will not check ack from slave | |
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23 | |
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24 | typedef struct { |
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25 | gpio_num_t clk; |
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26 | gpio_num_t mosi; |
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27 | gpio_num_t sda; // data for I²C |
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28 | gpio_num_t scl; // clock for I²C |
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29 | gpio_num_t cs; |
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30 | gpio_num_t reset; |
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31 | gpio_num_t dc; |
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32 | } u8g2_esp32_hal_t ; |
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33 | |
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34 | #define U8G2_ESP32_HAL_DEFAULT {U8G2_ESP32_HAL_UNDEFINED, U8G2_ESP32_HAL_UNDEFINED, U8G2_ESP32_HAL_UNDEFINED, U8G2_ESP32_HAL_UNDEFINED, U8G2_ESP32_HAL_UNDEFINED, U8G2_ESP32_HAL_UNDEFINED, U8G2_ESP32_HAL_UNDEFINED } |
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35 | |
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36 | void u8g2_esp32_hal_init(u8g2_esp32_hal_t u8g2_esp32_hal_param); |
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37 | uint8_t u8g2_esp32_spi_byte_cb(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr); |
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38 | uint8_t u8g2_esp32_i2c_byte_cb(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr); |
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39 | uint8_t u8g2_esp32_gpio_and_delay_cb(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr); |
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40 | #endif /* U8G2_ESP32_HAL_H_ */ |
