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digital_output group
This group contains all digital output signals.
Each signal is a sub group with the signal name as the group name.
"digital_output": {
"green_led": {
"type": "push pull",
"pad": "PA3",
"on_boot": "enabled"
}
}
type
defines what type of output mode should be used. Type can be:
- push pull
- open drain
type: enum
default: push pull
pad
defines the chip pad that the signal should be output on.
type: string
default: no default possible
invert
If this setting is set to “enabled” then turning this output “on” will generate a Low (Gnd) signal. Turning it “off” will generate a High (Vcc) level.
If this setting is set to “disabed” (=default) then turning this output “on” will generate a High (Vcc) signal. Turning it “off” will generate a Low (Gnd) level.
type: bool
default: “disabled”
pull_up
enables the pull up resistor.
type: bool
default: disabled
pull_down
enables the pull down resistor.
type: bool
default: disabled
on_boot
defines the logic level to be set on initialization. Setting this to “enabled” will set the pin High (Vcc) if inverted is disabled.
type: bool
default: disabled
API
The part “signal_name” in the described functions will be replaced by the name of the signal. E.g. if your signal is called “debug_led” then the API function “signal_name_on” will become “debug_led_on”.
void signal_name_on(void)
Will set the output pin to output a high Signal. The pin will be at Vcc. If the signal has the “invert” property “on” then the Output will be Low (Gnd).
void signal_name_off(void)
Will set the output pin to output a low Signal. The pin will be at Gnd. If the signal has the “invert” property “on” then the Output will be High (Vcc).