Expression pedal API. More...

#include <stdint.h>

Include dependency graph for expression.h:

This graph shows which files directly or indirectly include this file:

Macros
#define	MIDI_NOTE_ENABLE_WAH 42
	The MIDI note that represents uMIDI wah's enable / bypass state. More...

Functions
bool	exec_cal (const char *command)
	Handler for the serial command 'cal'. More...

bool	exec_echo (const char *command)
	Handler for the serial command 'echo'. More...

bool	exec_mute (const char *command)
	Handler for the serial command 'mute'. More...

void	handle_enable_switch (void)
	A background task that handles the enable switch. More...

void	init_expression_module (void)
	Initializes the expression module. More...

void	update_expression_value (uint16_t new_value)
	Updates the stored expression value. More...

void	trigger_expression_conversion (void)
	Triggers an ADC conversion of the expression pedal input. More...

Detailed Description

Expression pedal API.

Macro Definition Documentation

◆ MIDI_NOTE_ENABLE_WAH

#define MIDI_NOTE_ENABLE_WAH 42

The MIDI note that represents uMIDI wah's enable / bypass state.

Function Documentation

◆ exec_cal()

bool exec_cal ( const char * command )

Handler for the serial command 'cal'.

◆ exec_echo()

bool exec_echo ( const char * command )

Handler for the serial command 'echo'.

◆ exec_mute()

bool exec_mute ( const char * command )

Handler for the serial command 'mute'.

◆ handle_enable_switch()

void handle_enable_switch ( void )

A background task that handles the enable switch.

This task polls the enable switch input. If the input changed, a MIDI note on / off message is transmitted.

See also: MIDI_NOTE_ENABLE_WAH

◆ init_expression_module()

void init_expression_module ( void )

Initializes the expression module.

Reads calibration values from EEPROM.

◆ trigger_expression_conversion()

void trigger_expression_conversion ( void )

Triggers an ADC conversion of the expression pedal input.

◆ update_expression_value()

void update_expression_value ( uint16_t new_value )

Updates the stored expression value.

If the value changed, the new value is sent as a MIDI control change message for controller #69 (Waldorf Blofeld's F1 Cutoff).

Macros

Functions