1.8 KiB
Adding a new board
Charger parameters
CHARGER_CHARGE_CURRENT: Currently the same for all boards (1536).CHARGER_CHARGE_VOLTAGE: On the battery, look for 充电限制电压 (charge limit voltage). Convert this from volts to millivolts.CHARGER_INPUT_CURRENT: On the charger, look for DC output. Convert the current from amps to milliamps.
Example
The gaze15 battery has
充电限制电压: 16.8Vdc
and its charger has
DC OUTPUT (输出/輸出): 19.5V⎓9.23A 180W
This gives
CFLAGS+=\
-DCHARGER_CHARGE_CURRENT=1536 \
-DCHARGER_CHARGE_VOLTAGE=16800 \
-DCHARGER_INPUT_CURRENT=9230
GPIOs
Use ecsim on the proprietary firmware to generate the configuration. Modify
src/main.rs if the EC needs to be changed from 5570 to 8587. Refer to
gpio.sh, which can automate the process.
Use the EC page in the schematics to label everything.
Not everything will be generated correctly, so check them manually when
labeling. Examples include the M block not being included in the generated
output, and CCD_EN being configured as GPIO_IN instead of GPIO_OUT.
Keyboard backlight
Many models have backlit or RGB keyboards. The EC page in the board schematics should be sufficient to determine the method used to control the backlight.
DAC
One of the DACs is be used for controlling the backlight level.
Examples:
- galp4
- lemp9
These models use KBLIGHT_ADJ to control the backlight level.
PWM
One PWM line is used for controlling brightness, and three others are used for setting the red, green, and blue colors.
Examples:
- addw2
- gaze15
- oryp6
These models use EC_PWM_LEDKB_{R,G,B} to control the color of the keys.
I2C
I2C is used to communicate with the MCU that controls the keyboard backlight and color.
Examples:
- darp6
- oryp5