AT91SAM7X
[Ports]

Functions
void	rt_hw_cpu_reset ()
void	rt_hw_cpu_shutdown ()
void	rt_hw_interrupt_init ()
void	rt_hw_interrupt_mask (int vector)
void	rt_hw_interrupt_umask (int vector)
void	rt_hw_interrupt_install (int vector, rt_isr_handler_t new_handler, rt_isr_handler_t *old_handler)
void	rt_console_puts (const char *str)
void	rt_serial_init (void)
char	rt_serial_getc ()
void	rt_serial_putc (const char c)
rt_uint8_t *	rt_hw_stack_init (void *tentry, void *parameter, rt_uint8_t *stack_addr, void *texit)

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Detailed Description

The AT91SAM7X is a low pincount Flash microcontroller based on the 32-bit ARM7TDMI RISC processor. It features 256K bytes of embedded high-speed Flash with sector lock capabilities and a security bit, and 64K bytes of SRAM. The integrated proprietary SAM-BA Boot Assistant enables in-system programming of the embedded Flash.

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Function Documentation

void rt_console_puts

(

const char *

str

)

This function is used to display a string on console, normally, it's invoked by rt_kprintf

Parameters:

str

the displayed string

void rt_hw_cpu_reset

(

void

)

this function will reset CPU

void rt_hw_cpu_shutdown

(

void

)

this function will shutdown CPU

void rt_hw_interrupt_init

(

void

)

This function will initialize hardware interrupt

void rt_hw_interrupt_install	(	int	vector,
		rt_isr_handler_t	new_handler,
		rt_isr_handler_t *	old_handler
	)

This function will install a interrupt service routine to a interrupt.

Parameters:

	vector	the interrupt number
	new_handler	the interrupt service routine to be installed
	old_handler	the old interrupt service routine

void rt_hw_interrupt_mask

(

int

vector

)

This function will mask a interrupt.

Parameters:

vector

the interrupt number

void rt_hw_interrupt_umask

(

int

vector

)

This function will un-mask a interrupt.

Parameters:

vector

the interrupt number

rt_uint8_t* rt_hw_stack_init	(	void *	tentry,
		void *	parameter,
		rt_uint8_t *	stack_addr,
		void *	texit
	)

This function will initialize thread stack

Parameters:

	tentry	the entry of thread
	parameter	the parameter of entry
	stack_addr	the beginning stack address
	texit	the function will be called when thread exit

Returns:

stack address

char rt_serial_getc

(

void

)

This function read a character from serial without interrupt enable mode

Returns:

the read char

void rt_serial_init

(

void

)

This function initializes serial

void rt_serial_putc

(

const char

c

)

This function will write a character to serial without interrupt enable mode

Parameters:

c

the char to write