twi_flash.c File Reference

TWI flash driver. More...

#include <neorv32.h>
#include <config.h>
#include <twi_flash.h>

Functions
int	twi_flash_read_word (uint32_t addr, uint32_t *rdata)
int	twi_flash_write_byte (uint32_t addr, uint8_t wdata, int stop)
int	twi_flash_write_word (uint32_t addr, uint32_t wdata)
void	twi_flash_delay_twi_tick (int tick_count)
	Keeps TWI Peripheral in IDLE for 'tick_count' TWI clock ticks.

Detailed Description

TWI flash driver.

Function Documentation

twi_flash_delay_twi_tick()

void twi_flash_delay_twi_tick

(

int

tick_count

)

Keeps TWI Peripheral in IDLE for 'tick_count' TWI clock ticks.

Parameters

tick_count

Amount of TWI NOP ticks to wait

twi_flash_read_word()

int twi_flash_read_word	(	uint32_t	addr,
		uint32_t *	rdata )

Read 32-bit word from word-aligned TWI flash address.

Parameters

[in]	addr	Word-aligned address.
[in,out]	rdata	Pointer for returned data (uint32_t).

Returns

0 if success, != 0 if error

twi_flash_write_byte()

int twi_flash_write_byte	(	uint32_t	addr,
		uint8_t	wdata,
		int	stop )

Write single byte to TWI flash.

Parameters

addr	TWI flash write address.
wdata	TWI flash write data.
stop	Send TWI stop command at end of transmission

Returns

0 if success, !=0 if error

twi_flash_write_word()

int twi_flash_write_word	(	uint32_t	addr,
		uint32_t	wdata )

Write word to TWI flash.

Parameters

addr	TWI flash write address.
wdata	TWI flash write data.

Returns

0 if success, !=0 if error