ADC

simavr ADC allows external code to feed real voltages to the simulator, and the simulator uses it's 'real' reference voltage to do the right thing and return the 'proper' 10 bits ADC value to the AVR firmware. More...

Data Structures
struct	avr_adc_mux_t
struct	avr_adc_t

Macros
#define	AVR_IOCTL_ADC_GETIRQ   AVR_IOCTL_DEF('a','d','c',' ')
	Get the internal IRQ corresponding to the INT. More...
#define	AVR_ADC_SINGLE(_chan)
#define	AVR_ADC_DIFF(_a, _b, _g)
#define	AVR_ADC_REF(_t)
#define	AVR_ADC_TEMP()
#define	AVR_ADC_VCC4()

Typedefs
typedef struct avr_adc_mux_t	avr_adc_mux_t
typedef struct avr_adc_t	avr_adc_t

Enumerations
enum	{   ADC_IRQ_ADC0 = 0, ADC_IRQ_ADC1, ADC_IRQ_ADC2, ADC_IRQ_ADC3,   ADC_IRQ_ADC4, ADC_IRQ_ADC5, ADC_IRQ_ADC6, ADC_IRQ_ADC7,   ADC_IRQ_ADC8, ADC_IRQ_ADC9, ADC_IRQ_ADC10, ADC_IRQ_ADC11,   ADC_IRQ_ADC12, ADC_IRQ_ADC13, ADC_IRQ_ADC14, ADC_IRQ_ADC15,   ADC_IRQ_TEMP, ADC_IRQ_IN_TRIGGER, ADC_IRQ_OUT_TRIGGER, ADC_IRQ_COUNT }
enum	{   ADC_MUX_NONE = 0, ADC_MUX_NOISE, ADC_MUX_SINGLE, ADC_MUX_DIFF,   ADC_MUX_TEMP, ADC_MUX_REF, ADC_MUX_VCC4 }
	Definition of a ADC mux mode. More...
enum	{   ADC_VREF_AREF = 0, ADC_VREF_VCC, ADC_VREF_AVCC, ADC_VREF_V110 = 1100,   ADC_VREF_V256 = 2560 }
enum	avr_adts_type {   avr_adts_none = 0, avr_adts_free_running, avr_adts_analog_comparator_0, avr_adts_analog_comparator_1,   avr_adts_analog_comparator_2, avr_adts_analog_comparator_3, avr_adts_external_interrupt_0, avr_adts_timer_0_compare_match_a,   avr_adts_timer_0_compare_match_b, avr_adts_timer_0_overflow, avr_adts_timer_1_compare_match_b, avr_adts_timer_1_overflow,   avr_adts_timer_1_capture_event, avr_adts_pin_change_interrupt, avr_adts_psc_module_0_sync_signal, avr_adts_psc_module_1_sync_signal,   avr_adts_psc_module_2_sync_signal }
	ADC trigger sources. More...

Functions
void	avr_adc_init (avr_t *avr, avr_adc_t *port)

Detailed Description

simavr ADC allows external code to feed real voltages to the simulator, and the simulator uses it's 'real' reference voltage to do the right thing and return the 'proper' 10 bits ADC value to the AVR firmware.

To send values to the ADC, register your code to wait for the ADC_IRQ_OUT_TRIGGER irq, and at that point send any of the ADC_IRQ_ADC* with Millivolts as value.

External trigger is not done yet.

Macro Definition Documentation

#define AVR_ADC_DIFF	(		_a,
			_b,
			_g
	)

Value:

{       \
    .kind = ADC_MUX_DIFF,           \
      .src = (_a),              \
      .diff = (_b),             \
      .gain = (_g),             \
      }

#define AVR_ADC_REF

(

_t

)

Value:

{           \
    .kind = ADC_MUX_REF,            \
      .src = (_t),              \
      }

#define AVR_ADC_SINGLE

(

_chan

)

Value:

{           \
    .kind = ADC_MUX_SINGLE,         \
      .src = (_chan),               \
      }

#define AVR_ADC_TEMP

(

)

Value:

{           \
    .kind = ADC_MUX_TEMP,           \
      }

#define AVR_ADC_VCC4

(

)

Value:

{           \
    .kind = ADC_MUX_VCC4,           \
      }

#define AVR_IOCTL_ADC_GETIRQ   AVR_IOCTL_DEF('a','d','c',' ')

Get the internal IRQ corresponding to the INT.

Typedef Documentation

typedef struct avr_adc_mux_t avr_adc_mux_t

typedef struct avr_adc_t avr_adc_t

Enumeration Type Documentation

anonymous enum

Enumerator
ADC_IRQ_ADC0	input IRQ values. Values are /always/ volts * 1000 (millivolts)
ADC_IRQ_ADC1
ADC_IRQ_ADC2
ADC_IRQ_ADC3
ADC_IRQ_ADC4
ADC_IRQ_ADC5
ADC_IRQ_ADC6
ADC_IRQ_ADC7
ADC_IRQ_ADC8
ADC_IRQ_ADC9
ADC_IRQ_ADC10
ADC_IRQ_ADC11
ADC_IRQ_ADC12
ADC_IRQ_ADC13
ADC_IRQ_ADC14
ADC_IRQ_ADC15
ADC_IRQ_TEMP
ADC_IRQ_IN_TRIGGER
ADC_IRQ_OUT_TRIGGER
ADC_IRQ_COUNT	sends a avr_adc_mux_t

anonymous enum

Definition of a ADC mux mode.

Enumerator
ADC_MUX_NONE
ADC_MUX_NOISE	Nothing. return 0
ADC_MUX_SINGLE	Nothing. return something random
ADC_MUX_DIFF	Normal ADC pin reading
ADC_MUX_TEMP	differential channels (src-diff)
ADC_MUX_REF	internal temp sensor
ADC_MUX_VCC4	reference voltage (in src * 100)

anonymous enum

Enumerator
ADC_VREF_AREF
ADC_VREF_VCC	default mode
ADC_VREF_AVCC
ADC_VREF_V110
ADC_VREF_V256

enum avr_adts_type

ADC trigger sources.

Enumerator
avr_adts_none
avr_adts_free_running
avr_adts_analog_comparator_0
avr_adts_analog_comparator_1
avr_adts_analog_comparator_2
avr_adts_analog_comparator_3
avr_adts_external_interrupt_0
avr_adts_timer_0_compare_match_a
avr_adts_timer_0_compare_match_b
avr_adts_timer_0_overflow
avr_adts_timer_1_compare_match_b
avr_adts_timer_1_overflow
avr_adts_timer_1_capture_event
avr_adts_pin_change_interrupt
avr_adts_psc_module_0_sync_signal
avr_adts_psc_module_1_sync_signal
avr_adts_psc_module_2_sync_signal

Function Documentation

void avr_adc_init	(	avr_t *	avr,
		avr_adc_t *	port
	)

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