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85 lines
2.5 KiB
Plaintext
85 lines
2.5 KiB
Plaintext
# Copyright (c) 2023 Gunar Schorcht
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#
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# This file is subject to the terms and conditions of the GNU Lesser
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# General Public License v2.1. See the file LICENSE in the top level
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# directory for more details.
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#
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if MODULE_ST77XX
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config MODULE_ST7735
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bool "ST7735 display"
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default y if !MODULE_ST7789 && !MODULE_ST7796
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help
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ST7735 display controller is used
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if MODULE_ST7735
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menuconfig ST7735_CUSTOM_CONFIG
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bool "ST7735 Custom Configuration"
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help
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Enable if customized configuration of voltages are needed. Otherwise
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reset default values are used.
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if ST7735_CUSTOM_CONFIG
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config ST7735_AVDD
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int "AVDD voltage (in millivolts)"
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default 4900
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range 4500 5100
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help
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Configure the AVDD voltage for analog circuits in millivolts.
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Valid values must be in the range of 4500 (4.5V) to 5100 (5.1V)
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in steps of 100.
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config ST7735_GVDD
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int "GVDD voltage (in millivolts)"
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default 4600
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range 3150 4700
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help
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Configure the GVDD voltage, the gamma reference positive voltage.
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Valid values must be in the range of 3150 (3.15V) to 4700 (4.7V)
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in steps of 50.
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config ST7735_GVCL
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int "GVCL voltage (in millivolts)"
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default -4600
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range -4700 -3150
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help
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Configure the GVCL voltage, the gamma reference negative voltage.
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Valid values must be in the range of -4700 (-4.7V) to -3150 (-3.15V)
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in steps of 50.
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config ST7735_VCOM
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int "VCOM voltage (in millivolts)"
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default -775
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range -2000 -425
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help
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Configure the VCOM voltage. VCOM needs to be adjusted to match the
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capacitance and performance specifications of the TFT panel to
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maximize contrast and minimize flickering.
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Valid values must be in the range of -2000 (-2.0V) to -425 (-0.425V)
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in steps of 25.
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config ST7735_VGH
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int "VGH voltage (in millivolts)"
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default 14700
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range 10000 15000
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help
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Configure the high voltage for gate drivers in millivolts.
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Valid values must be in the range of 10000 (10V) to 15000 (15V) and
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in the range of (2 * AVDD + 2.1V) and (3 * AVDD + 2.4 V).
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config ST7735_VGL
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int "VGL voltage (in millivolts)"
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default -10000
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range -13000 -7500
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help
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Configure the low voltage for gate drivers in millivolts.
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Valid values must be in the range of -13000 (-13V) to -7500 (-7.5V)
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in steps of 2500.
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endif # ST7735_CUSTOM_CONFIG
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endif # MODULE_ST7735
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endif # MODULE_ST77XX
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