sys_flash.h File Reference

FLASH related functions. More...

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Functions
void	SYS_EXT_FLASH_Init (void)
	Initializing external FLASH.
void	SYS_EXT_FLASH_InitIO (void)
	Initializing external FLASH interface pins.

Detailed Description

FLASH related functions.

Definition in file sys_flash.h.

Function Documentation

void SYS_EXT_FLASH_Init

(

void

)

Initializing external FLASH.

Returns

void

Parameters

void

Definition at line 21 of file sys_flash.c.

{ 
    SYS_EXT_FLASH_InitIO();
}

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void SYS_EXT_FLASH_InitIO

(

void

)

Initializing external FLASH interface pins.

Returns

void

Parameters

void

Definition at line 34 of file sys_flash.c.

{
    // Release CS initially
    EXT_FLASH_CS_PORT(OUT)   |= BV(EXT_FLASH_CS_PIN);
    EXT_FLASH_CS_PORT(DIR)   |= BV(EXT_FLASH_CS_PIN);
    
    EXT_FLASH_WP_PORT(OUT)   |= BV(EXT_FLASH_WP_PIN);
    EXT_FLASH_WP_PORT(DIR)   |= BV(EXT_FLASH_WP_PIN);
    
    EXT_FLASH_HOLD_PORT(OUT) |= BV(EXT_FLASH_HOLD_PIN);
    EXT_FLASH_HOLD_PORT(DIR) |= BV(EXT_FLASH_HOLD_PIN);
    
    // Set as SPI pins
    EXT_FLASH_MOSI_PORT(SEL) |= BV(EXT_FLASH_MOSI_PIN);
    EXT_FLASH_MISO_PORT(SEL) |= BV(EXT_FLASH_MISO_PIN);
    EXT_FLASH_CLK_PORT(SEL)  |= BV(EXT_FLASH_CLK_PIN);
}

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