Functions for configuring and using the Peripheral Touch Controller. More...

Typedefs
typedef enum tag_oversample_level_t	ptc_oversample_t

typedef enum tag_series_resistor_t	ptc_series_resistor_t

typedef enum tag_freq_mode_t	ptc_freq_mode_t

typedef enum tag_freq_hop_t	ptc_freq_hop_t

Enumerations
enum	tag_oversample_level_t { OVERSAMPLE_1 , OVERSAMPLE_2 , OVERSAMPLE_4 , OVERSAMPLE_8 , OVERSAMPLE_16 , OVERSAMPLE_32 , OVERSAMPLE_64 }

enum	tag_series_resistor_t { RESISTOR_0 , RESISTOR_20K , RESISTOR_50K , RESISTOR_100K }

enum	tag_freq_mode_t { FREQ_MODE_NONE , FREQ_MODE_HOP , FREQ_MODE_SPREAD , FREQ_MODE_SPREAD_MEDIAN }

enum	tag_freq_hop_t { FREQ_HOP_1 , FREQ_HOP_2 , FREQ_HOP_3 , FREQ_HOP_4 , FREQ_HOP_5 , FREQ_HOP_6 , FREQ_HOP_7 , FREQ_HOP_8 , FREQ_HOP_9 , FREQ_HOP_10 , FREQ_HOP_11 , FREQ_HOP_12 , FREQ_HOP_13 , FREQ_HOP_14 , FREQ_HOP_15 , FREQ_HOP_16 }

Functions
void	ptc_init (void)
	Initialize the peripheral touch controller.

void	ptc_enable (uint8_t channel)
	Enable the given PTC channel.

uint16_t	ptc_get_value (uint8_t channel)
	Get a value from the given channel.

Detailed Description

Functions for configuring and using the Peripheral Touch Controller.

Based on Adafruit's FreeTouch library.

Function Documentation

void ptc_enable ( uint8_t channel )

Enable the given PTC channel.

Parameters

channel The PTC channel (NOT pin number) to enable.

Note: You are still responsible for configuring the pin mux. Also we don't yet have a way to disable a channel.

uint16_t ptc_get_value ( uint8_t channel )

Get a value from the given channel.

Parameters

channel The PTC channel (NOT pin number) to read.