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https://github.com/tinygo-org/drivers.git
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Avinal Kumar
e232a4f136
- Waveshare 2.9in v2 epaper uses a different IC (SSD1680) than the v1. This commit
takes the code from v1 and modifies them for v2.
- Datasheets:
- https://files.waveshare.com/upload/7/79/2.9inch-e-paper-v2-specification.pdf
- https://cdn-learn.adafruit.com/assets/assets/000/097/631/original/SSD1680_Datasheet.pdf?1607625960
- Code reference: https://github.com/waveshareteam/e-Paper/raw/refs/heads/master/RaspberryPi_JetsonNano/c/lib/e-Paper/EPD_2in9_V2.c
- Fixes #627
Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>
Assisted-by: Claude Code
51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
package epd2in9v2
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// Commands from SSD1680 datasheet
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const (
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EPD_WIDTH = 128
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EPD_HEIGHT = 296
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DRIVER_OUTPUT_CONTROL = 0x01
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GATE_DRIVING_VOLTAGE = 0x03
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SOURCE_DRIVING_VOLTAGE = 0x04
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DEEP_SLEEP_MODE = 0x10
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DATA_ENTRY_MODE = 0x11
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SW_RESET = 0x12
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MASTER_ACTIVATION = 0x20
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DISPLAY_UPDATE_CONTROL_1 = 0x21
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DISPLAY_UPDATE_CONTROL_2 = 0x22
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WRITE_RAM_BW = 0x24
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WRITE_RAM_RED = 0x26
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VCOM_SENSE = 0x28
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VCOM_SENSE_DURATION = 0x29
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PROGRAM_VCOM_OTP = 0x2A
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WRITE_VCOM_CONTROL = 0x2B
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WRITE_VCOM_REGISTER = 0x2C
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OTP_READ_DISPLAY_OPTION = 0x2D
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USER_ID_READ = 0x2E
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PROGRAM_WS_OTP = 0x30
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LOAD_WS_OTP = 0x31
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WRITE_LUT_REGISTER = 0x32
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PROGRAM_OTP_SELECTION = 0x36
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OTP_SELECTION_CONTROL = 0x37
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WRITE_USER_ID = 0x38
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OTP_PROGRAM_MODE = 0x39
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BORDER_WAVEFORM_CONTROL = 0x3C
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END_OPTION = 0x3F
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SET_RAM_X_ADDRESS = 0x44
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SET_RAM_Y_ADDRESS = 0x45
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SET_RAM_X_COUNTER = 0x4E
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SET_RAM_Y_COUNTER = 0x4F
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SET_ANALOG_BLOCK_CONTROL = 0x74
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SET_DIGITAL_BLOCK_CONTROL = 0x7E
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NO_ROTATION Rotation = 0
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ROTATION_90 Rotation = 1
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ROTATION_180 Rotation = 2
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ROTATION_270 Rotation = 3
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SPEED_DEFAULT Speed = 0
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SPEED_FAST Speed = 1
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SPEED_PARTIAL Speed = 2
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)
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