mirror of
https://github.com/Anshorei/epd-waveshare.git
synced 2026-10-03 22:06:43 +00:00
first steps to rustfmt althought it sometimes doesn#t exactly looks good
This commit is contained in:
+142
-145
@@ -1,170 +1,167 @@
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//! SPI Commands for the Waveshare 4.2" E-Ink Display
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use interface;
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/// EPD4IN2 commands
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///
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///
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/// Should rarely (never?) be needed directly.
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///
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/// For more infos about the addresses and what they are doing look into the pdfs
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///
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///
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/// For more infos about the addresses and what they are doing look into the pdfs
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///
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/// The description of the single commands is mostly taken from IL0398.pdf
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#[allow(dead_code)]
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#[allow(non_camel_case_types)]
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#[derive(Copy, Clone)]
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pub(crate) enum Command {
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/// Set Resolution, LUT selection, BWR pixels, gate scan direction, source shift direction, booster switch, soft reset
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PANEL_SETTING = 0x00,
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/// selecting internal and external power
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POWER_SETTING = 0x01,
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/// After the Power Off command, the driver will power off following the Power Off Sequence. This command will turn off charge
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/// pump, T-con, source driver, gate driver, VCOM, and temperature sensor, but register data will be kept until VDD becomes OFF.
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/// Source Driver output and Vcom will remain as previous condition, which may have 2 conditions: floating.
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POWER_OFF = 0x02,
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/// Setting Power OFF sequence
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POWER_OFF_SEQUENCE_SETTING = 0x03,
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/// Turning On the Power
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POWER_ON = 0x04,
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/// This command enables the internal bandgap, which will be cleared by the next POF.
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POWER_ON_MEASURE = 0x05,
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/// Starting data transmission
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BOOSTER_SOFT_START = 0x06,
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/// After this command is transmitted, the chip would enter the deep-sleep mode to save power.
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///
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/// The deep sleep mode would return to standby by hardware reset.
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///
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/// The only one parameter is a check code, the command would be excuted if check code = 0xA5.
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DEEP_SLEEP = 0x07,
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/// This command starts transmitting data and write them into SRAM. To complete data transmission, command DSP (Data
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/// transmission Stop) must be issued. Then the chip will start to send data/VCOM for panel.
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///
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/// - In B/W mode, this command writes “OLD” data to SRAM.
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/// - In B/W/Red mode, this command writes “B/W” data to SRAM.
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/// - In Program mode, this command writes “OTP” data to SRAM for programming.
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DATA_START_TRANSMISSION_1 = 0x10,
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/// Stopping data transmission
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DATA_STOP = 0x11,
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/// While user sent this command, driver will refresh display (data/VCOM) according to SRAM data and LUT.
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///
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/// After Display Refresh command, BUSY_N signal will become “0” and the refreshing of panel starts.
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DISPLAY_REFRESH = 0x12,
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/// This command starts transmitting data and write them into SRAM. To complete data transmission, command DSP (Data
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/// transmission Stop) must be issued. Then the chip will start to send data/VCOM for panel.
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/// - In B/W mode, this command writes “NEW” data to SRAM.
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/// - In B/W/Red mode, this command writes “RED” data to SRAM.
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DATA_START_TRANSMISSION_2 = 0x13,
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PANEL_SETTING = 0x00,
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/// selecting internal and external power
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POWER_SETTING = 0x01,
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/// After the Power Off command, the driver will power off following the Power Off Sequence. This command will turn off charge
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/// pump, T-con, source driver, gate driver, VCOM, and temperature sensor, but register data will be kept until VDD becomes OFF.
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/// Source Driver output and Vcom will remain as previous condition, which may have 2 conditions: floating.
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POWER_OFF = 0x02,
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/// Setting Power OFF sequence
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POWER_OFF_SEQUENCE_SETTING = 0x03,
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/// Turning On the Power
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POWER_ON = 0x04,
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/// This command enables the internal bandgap, which will be cleared by the next POF.
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POWER_ON_MEASURE = 0x05,
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/// Starting data transmission
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BOOSTER_SOFT_START = 0x06,
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/// After this command is transmitted, the chip would enter the deep-sleep mode to save power.
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///
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/// The deep sleep mode would return to standby by hardware reset.
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///
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/// The only one parameter is a check code, the command would be excuted if check code = 0xA5.
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DEEP_SLEEP = 0x07,
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/// This command starts transmitting data and write them into SRAM. To complete data transmission, command DSP (Data
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/// transmission Stop) must be issued. Then the chip will start to send data/VCOM for panel.
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///
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/// - In B/W mode, this command writes “OLD” data to SRAM.
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/// - In B/W/Red mode, this command writes “B/W” data to SRAM.
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/// - In Program mode, this command writes “OTP” data to SRAM for programming.
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DATA_START_TRANSMISSION_1 = 0x10,
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/// Stopping data transmission
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DATA_STOP = 0x11,
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/// While user sent this command, driver will refresh display (data/VCOM) according to SRAM data and LUT.
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///
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/// After Display Refresh command, BUSY_N signal will become “0” and the refreshing of panel starts.
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DISPLAY_REFRESH = 0x12,
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/// This command starts transmitting data and write them into SRAM. To complete data transmission, command DSP (Data
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/// transmission Stop) must be issued. Then the chip will start to send data/VCOM for panel.
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/// - In B/W mode, this command writes “NEW” data to SRAM.
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/// - In B/W/Red mode, this command writes “RED” data to SRAM.
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DATA_START_TRANSMISSION_2 = 0x13,
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/// This command stores VCOM Look-Up Table with 7 groups of data. Each group contains information for one state and is stored
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/// with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_FOR_VCOM = 0x20,
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/// This command stores White-to-White Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_WHITE_TO_WHITE = 0x21,
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/// This command stores Black-to-White Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_BLACK_TO_WHITE = 0x22,
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/// This command stores White-to-Black Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_WHITE_TO_BLACK = 0x23,
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/// This command stores Black-to-Black Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_BLACK_TO_BLACK = 0x24,
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/// The command controls the PLL clock frequency.
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PLL_CONTROL = 0x30,
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/// This command reads the temperature sensed by the temperature sensor.
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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TEMPERATURE_SENSOR_COMMAND = 0x40,
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/// Selects the Internal or External temperature sensor and offset
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TEMPERATURE_SENSOR_SELECTION = 0x41,
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/// Write External Temperature Sensor
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TEMPERATURE_SENSOR_WRITE = 0x42,
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/// Read External Temperature Sensor
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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TEMPERATURE_SENSOR_READ = 0x43,
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/// This command indicates the interval of Vcom and data output. When setting the vertical back porch, the total blanking will be kept (20 Hsync)
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VCOM_AND_DATA_INTERVAL_SETTING = 0x50,
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/// This command indicates the input power condition. Host can read this flag to learn the battery condition.
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LOW_POWER_DETECTION = 0x51,
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/// This command defines non-overlap period of Gate and Source.
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TCON_SETTING = 0x60,
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/// This command defines alternative resolution and this setting is of higher priority than the RES\[1:0\] in R00H (PSR).
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RESOLUTION_SETTING = 0x61,
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/// This command defines the Fist Active Gate and First Active Source of active channels.
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GSST_SETTING = 0x65,
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/// The LUT_REV / Chip Revision is read from OTP address = 0x001.
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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REVISION = 0x70,
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/// Read Flags. This command reads the IC status
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/// PTL, I2C_ERR, I2C_BUSY, DATA, PON, POF, BUSY
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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GET_STATUS = 0x71,
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/// Automatically measure VCOM. This command reads the IC status
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AUTO_MEASUREMENT_VCOM = 0x80,
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/// This command gets the VCOM value
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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READ_VCOM_VALUE = 0x81,
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/// Set VCM_DC
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VCM_DC_SETTING = 0x82,
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/// This command sets partial window
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PARTIAL_WINDOW = 0x90,
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/// This command makes the display enter partial mode
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PARTIAL_IN = 0x91,
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/// This command makes the display exit partial mode and enter normal mode
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PARTIAL_OUT = 0x92,
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/// After this command is issued, the chip would enter the program mode.
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///
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/// After the programming procedure completed, a hardware reset is necessary for leaving program mode.
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///
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/// The only one parameter is a check code, the command would be excuted if check code = 0xA5.
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PROGRAM_MODE = 0xA0,
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/// After this command is transmitted, the programming state machine would be activated.
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///
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/// The BUSY flag would fall to 0 until the programming is completed.
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ACTIVE_PROGRAMMING = 0xA1,
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/// The command is used for reading the content of OTP for checking the data of programming.
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///
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/// The value of (n) is depending on the amount of programmed data, tha max address = 0xFFF.
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READ_OTP = 0xA2,
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/// This command is set for saving power during fresh period. If the output voltage of VCOM / Source is from negative to positive or
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/// from positive to negative, the power saving mechanism will be activated. The active period width is defined by the following two
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/// parameters.
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POWER_SAVING = 0xE3,
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/// This command stores VCOM Look-Up Table with 7 groups of data. Each group contains information for one state and is stored
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/// with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_FOR_VCOM = 0x20,
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/// This command stores White-to-White Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_WHITE_TO_WHITE = 0x21,
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/// This command stores Black-to-White Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_BLACK_TO_WHITE = 0x22,
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/// This command stores White-to-Black Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_WHITE_TO_BLACK = 0x23,
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/// This command stores Black-to-Black Look-Up Table with 7 groups of data. Each group contains information for one state and is
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/// stored with 6 bytes, while the sixth byte indicates how many times that phase will repeat.
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///
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/// from IL0373
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LUT_BLACK_TO_BLACK = 0x24,
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/// The command controls the PLL clock frequency.
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PLL_CONTROL = 0x30,
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/// This command reads the temperature sensed by the temperature sensor.
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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TEMPERATURE_SENSOR_COMMAND = 0x40,
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/// Selects the Internal or External temperature sensor and offset
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TEMPERATURE_SENSOR_SELECTION = 0x41,
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/// Write External Temperature Sensor
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TEMPERATURE_SENSOR_WRITE = 0x42,
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/// Read External Temperature Sensor
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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TEMPERATURE_SENSOR_READ = 0x43,
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/// This command indicates the interval of Vcom and data output. When setting the vertical back porch, the total blanking will be kept (20 Hsync)
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VCOM_AND_DATA_INTERVAL_SETTING = 0x50,
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/// This command indicates the input power condition. Host can read this flag to learn the battery condition.
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LOW_POWER_DETECTION = 0x51,
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/// This command defines non-overlap period of Gate and Source.
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TCON_SETTING = 0x60,
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/// This command defines alternative resolution and this setting is of higher priority than the RES\[1:0\] in R00H (PSR).
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RESOLUTION_SETTING = 0x61,
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/// This command defines the Fist Active Gate and First Active Source of active channels.
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GSST_SETTING = 0x65,
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/// The LUT_REV / Chip Revision is read from OTP address = 0x001.
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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REVISION = 0x70,
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/// Read Flags. This command reads the IC status
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/// PTL, I2C_ERR, I2C_BUSY, DATA, PON, POF, BUSY
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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GET_STATUS = 0x71,
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/// Automatically measure VCOM. This command reads the IC status
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AUTO_MEASUREMENT_VCOM = 0x80,
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/// This command gets the VCOM value
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///
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/// Doesn't work! Waveshare doesn't connect the read pin
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READ_VCOM_VALUE = 0x81,
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/// Set VCM_DC
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VCM_DC_SETTING = 0x82,
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/// This command sets partial window
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PARTIAL_WINDOW = 0x90,
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/// This command makes the display enter partial mode
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PARTIAL_IN = 0x91,
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/// This command makes the display exit partial mode and enter normal mode
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PARTIAL_OUT = 0x92,
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/// After this command is issued, the chip would enter the program mode.
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///
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/// After the programming procedure completed, a hardware reset is necessary for leaving program mode.
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///
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/// The only one parameter is a check code, the command would be excuted if check code = 0xA5.
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PROGRAM_MODE = 0xA0,
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/// After this command is transmitted, the programming state machine would be activated.
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///
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/// The BUSY flag would fall to 0 until the programming is completed.
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ACTIVE_PROGRAMMING = 0xA1,
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/// The command is used for reading the content of OTP for checking the data of programming.
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///
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/// The value of (n) is depending on the amount of programmed data, tha max address = 0xFFF.
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READ_OTP = 0xA2,
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/// This command is set for saving power during fresh period. If the output voltage of VCOM / Source is from negative to positive or
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/// from positive to negative, the power saving mechanism will be activated. The active period width is defined by the following two
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/// parameters.
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POWER_SAVING = 0xE3,
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}
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impl interface::Command for Command {
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/// Returns the address of the command
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fn address(self) -> u8 {
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self as u8
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}
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/// Returns the address of the command
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fn address(self) -> u8 {
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self as u8
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use interface::Command as CommandTrait;
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use interface::Command as CommandTrait;
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#[test]
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fn command_addr() {
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assert_eq!(Command::POWER_SAVING.address(), 0xE3);
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assert_eq!(Command::POWER_SAVING.address(), 0xE3);
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assert_eq!(Command::PANEL_SETTING.address(), 0x00);
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assert_eq!(Command::PANEL_SETTING.address(), 0x00);
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assert_eq!(Command::DISPLAY_REFRESH.address(), 0x12);
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assert_eq!(Command::DISPLAY_REFRESH.address(), 0x12);
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}
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}
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}
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@@ -108,4 +108,4 @@ pub(crate) const LUT_WB_QUICK: [u8; 42] =[
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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];
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];
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+8
-14
@@ -62,11 +62,9 @@ use drawing::color::Color;
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pub mod command;
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use self::command::Command;
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/// EPD4in2 driver
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///
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pub struct EPD4in2<SPI, CS, BUSY, DC, RST, D>
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{
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pub struct EPD4in2<SPI, CS, BUSY, DC, RST, D> {
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/// Connection Interface
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interface: ConnectionInterface<SPI, CS, BUSY, DC, RST, D>,
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/// Width
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@@ -77,11 +75,10 @@ pub struct EPD4in2<SPI, CS, BUSY, DC, RST, D>
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color: Color,
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}
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impl<SPI, CS, BUSY, DataCommand, RST, Delay, SpiError> WaveshareInterface<SPI, CS, BUSY, DataCommand, RST, Delay, SpiError>
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impl<SPI, CS, BUSY, DataCommand, RST, Delay, SpiError>
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WaveshareInterface<SPI, CS, BUSY, DataCommand, RST, Delay, SpiError>
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for EPD4in2<SPI, CS, BUSY, DataCommand, RST, Delay>
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where
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where
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SPI: Write<u8, Error = SpiError>,
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CS: OutputPin,
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BUSY: InputPin,
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@@ -116,7 +113,6 @@ where
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let width = WIDTH as u16;
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let height = HEIGHT as u16;
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let color = Color::White;
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let mut epd = EPD4in2 {
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interface,
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@@ -227,7 +223,7 @@ where
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self.send_command(Command::DATA_START_TRANSMISSION_2)?;
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//self.send_multiple_data(buffer)?;
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||||
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for &elem in buffer.iter() {
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self.send_data(elem)?;
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}
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@@ -243,7 +239,6 @@ where
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width: u16,
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||||
height: u16,
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) -> Result<(), SpiError> {
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||||
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if buffer.len() as u16 != width / 8 * height {
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//TODO: panic!! or sth like that
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//return Err("Wrong buffersize");
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@@ -279,12 +274,11 @@ where
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self.send_command(Command::PARTIAL_OUT)
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}
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fn update_and_display_frame(&mut self, buffer: &[u8]) -> Result<(), SpiError>{
|
||||
fn update_and_display_frame(&mut self, buffer: &[u8]) -> Result<(), SpiError> {
|
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self.update_frame(buffer)?;
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self.display_frame()
|
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}
|
||||
|
||||
|
||||
fn display_frame(&mut self) -> Result<(), SpiError> {
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self.send_command(Command::DISPLAY_REFRESH)?;
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||||
|
||||
@@ -366,8 +360,8 @@ where
|
||||
}
|
||||
|
||||
/// Fill the look-up table for a quick display (partial refresh)
|
||||
///
|
||||
/// Is automatically done by [EPD4in2::display_frame_quick()](EPD4in2::display_frame_quick())
|
||||
///
|
||||
/// Is automatically done by [EPD4in2::display_frame_quick()](EPD4in2::display_frame_quick())
|
||||
/// //TODO: make public?
|
||||
#[cfg(feature = "epd4in2_fast_update")]
|
||||
fn set_lut_quick(&mut self) -> Result<(), SpiError> {
|
||||
|
||||
Reference in New Issue
Block a user