Generic BitBang Module

Generic BitBang Module of simavr AVR simulator. More...

Data Structures
struct	avr_bitbang_t
	SPI Module initialization and state structure. More...

Typedefs
typedef struct avr_bitbang_t	avr_bitbang_t
	SPI Module initialization and state structure. More...

Functions
void	avr_bitbang_reset (avr_t *avr, avr_bitbang_t *p)
	reset bitbang sub-module More...
void	avr_bitbang_start (avr_bitbang_t *p)
	start bitbang transfer More...
void	avr_bitbang_stop (avr_bitbang_t *p)
	stop bitbang transfer More...

Detailed Description

Generic BitBang Module of simavr AVR simulator.

Features / Implementation Status

• easy buffer access with push() / pop() functions
• one input and one output pin (can be the same HW pin for I2C)

Todo:

• one input and one output pin (can be the same HW pin for I2C)
• one clock pin which can be configured as input or output when the clock is output, the clock signal is generated with a configured frequency (master / slave mode)
• 2x 32-bit buffers (input / output) (allows start, stop bits for UART, etc.)
• on each read / write a callback is executed to notify the master module

Typedef Documentation

typedef struct avr_bitbang_t avr_bitbang_t

SPI Module initialization and state structure.

Function Documentation

void avr_bitbang_reset	(	avr_t *	avr,
		avr_bitbang_t *	p
	)

reset bitbang sub-module

Parameters

avr	avr attached to
p	bitbang structure

void avr_bitbang_start

(

avr_bitbang_t *

p

)

start bitbang transfer

buffers should be written / cleared in advanced timers and interrupts are connected

Parameters

p	bitbang structure

Todo:

test

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void avr_bitbang_stop

(

avr_bitbang_t *

p

)

stop bitbang transfer

timers and interrupts are disabled

Parameters

p	bitbang structure

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