#include <stdint.h>
#include <string.h>
#include <stdbool.h>

结构体
struct	spic_init_t

struct	spic_base_config_t

宏定义
#define	SPIC_DMA_MODEFI 0

#define	RX_NAGE_SAMPLE 0

#define	RX_NAGE_EN 1

#define	DELAY_LINE 0x1A

类型定义
typedef struct spic_init_t *	spic_init_p

typedef struct spic_base_config_t *	spic_base_config_p

函数
int32_t	spic_cmd (uint32_t spic_base, spic_base_config_p spic_base_config)
	spic向flash发送命令更多...

int32_t	spic_read_by_cpu (uint32_t spic_base, spic_base_config_p spic_base_config, uint8_t *read_data, uint32_t read_len)
	spic以CPU的方式向flash读数据更多...

int32_t	spic_write_by_cpu (uint32_t spic_base, spic_base_config_p spic_base_config, uint8_t *write_data, uint32_t write_len)
	spic以CPU的方式向flash写数据更多...

int32_t	spic_read_by_dma (uint32_t spic_base, spic_base_config_p spic_base_config, uint8_t *read_data, uint32_t read_len)
	spic以DMA的方式向flash读数据更多...

int32_t	spic_write_by_dma (uint32_t spic_base, spic_base_config_p spic_base_config, uint8_t *write_data, uint32_t write_len)
	spic以DMA的方式向flash写数据更多...

int32_t	spic_read_xip (uint32_t spic_base, spic_base_config_p spic_base_config, uint8_t *read_data, uint32_t read_len)

int32_t	spic_init (uint32_t spic_base, spic_init_p init)
	spic控制器初始化更多...

int32_t	spic_clk_phase_set (uint32_t spic_base, uint32_t tx_shift, uint32_t tx_nege_en, uint32_t rx_shift, uint32_t rx_nege_en)
	flash时钟相位调制更多...

void	spic_hardware_reset (uint32_t spic_base, uint8_t enable)

int32_t	spic_xip_config (uint32_t spic_base, spic_base_config_p spic_base_config)

void	spic_prefetch_en (uint32_t spic_base, bool en)
	flash预取开关更多...

void	spic_change_clk (uint32_t spic_base, flash_clk_div_t clk)

变量
typedef	enum

结构体说明

◆ spic_init_t

struct spic_init_t

成员变量
uint32_t	addr_size	功能:地址宽度(单位Byte)
flash_clk_div_t	flash_clk_div	功能:flash时钟分频
uint32_t	flash_sel	功能:flash选择：0：flash0；1：flash1

◆ spic_base_config_t

struct spic_base_config_t

成员变量
uint32_t	addr	功能:操作地址
uint32_t	addr_en	功能:地址是否有效
uint32_t	cmd0	功能:命令0
uint32_t	cmd1	功能:命令1
md_sel_t	cmd_md	功能:命令模式
md_sel_t	data_md	功能:数据模式
uint32_t	dummy	功能:Dummy周期
uint32_t	dummy_en	功能:Dummy是否有效

宏定义说明

◆ DELAY_LINE

#define DELAY_LINE 0x1A

◆ RX_NAGE_EN

#define RX_NAGE_EN 1

◆ RX_NAGE_SAMPLE

#define RX_NAGE_SAMPLE 0

◆ SPIC_DMA_MODEFI

#define SPIC_DMA_MODEFI 0

类型定义说明

◆ spic_base_config_p

typedef struct spic_base_config_t* spic_base_config_p

◆ spic_init_p

typedef struct spic_init_t* spic_init_p

函数说明

◆ spic_change_clk()

void spic_change_clk	(	uint32_t	spic_base,
		flash_clk_div_t	clk
	)

◆ spic_clk_phase_set()

int32_t spic_clk_phase_set	(	uint32_t	spic_base,
		uint32_t	tx_shift,
		uint32_t	tx_nege_en,
		uint32_t	rx_shift,
		uint32_t	rx_nege_en
	)

flash时钟相位调制

参数

tx_shift	偏移X个core_clk，注意X必须小于core_clk与flash_clk的频率倍数（dtr模式下小于倍数的一半）
tx_nege_en	配置为1时在shift的基础上再向后平移半个core_clk周期
rx_shift	偏移X个core_clk，注意X必须小于core_clk与flash_clk的频率倍数（dtr模式下小于倍数的一半）
rx_nege_en	配置为1时在shift的基础上再向后平移半个core_clk周期

返回: int32_t 0:成功;1:失败;

◆ spic_cmd()

int32_t spic_cmd	(	uint32_t	spic_base,
		spic_base_config_p	spic_base_config
	)

spic向flash发送命令

参数

spic_base_config 配置结构体指针

返回: int32_t 0:成功;1:失败;

◆ spic_hardware_reset()

void spic_hardware_reset	(	uint32_t	spic_base,
		uint8_t	enable
	)

◆ spic_init()

int32_t spic_init	(	uint32_t	spic_base,
		spic_init_p	init
	)

spic控制器初始化

参数

init 初始化结构体

返回: int32_t 0:成功;1:失败;

◆ spic_prefetch_en()

void spic_prefetch_en	(	uint32_t	spic_base,
		bool	en
	)

flash预取开关

参数

en	enable：开启；disable：关闭；

◆ spic_read_by_cpu()

int32_t spic_read_by_cpu	(	uint32_t	spic_base,
		spic_base_config_p	spic_base_config,
		uint8_t *	read_data,
		uint32_t	read_len
	)

spic以CPU的方式向flash读数据

参数

spic_base_config	配置结构体指针
read_data	数据指针
read_len	数据长度

返回: int32_t 0:成功;1:失败;

◆ spic_read_by_dma()

int32_t spic_read_by_dma	(	uint32_t	spic_base,
		spic_base_config_p	spic_base_config,
		uint8_t *	read_data,
		uint32_t	read_len
	)

spic以DMA的方式向flash读数据

参数

spic_base_config	配置结构体指针
read_data	数据指针
read_len	数据长度

返回: int32_t 0:成功;1:失败;

◆ spic_read_xip()

int32_t spic_read_xip	(	uint32_t	spic_base,
		spic_base_config_p	spic_base_config,
		uint8_t *	read_data,
		uint32_t	read_len
	)

◆ spic_write_by_cpu()

int32_t spic_write_by_cpu	(	uint32_t	spic_base,
		spic_base_config_p	spic_base_config,
		uint8_t *	write_data,
		uint32_t	write_len
	)

spic以CPU的方式向flash写数据

参数

spic_base_config	配置结构体指针
write_data	数据指针
write_len	数据长度

返回: int32_t 0:成功;1:失败;

◆ spic_write_by_dma()

int32_t spic_write_by_dma	(	uint32_t	spic_base,
		spic_base_config_p	spic_base_config,
		uint8_t *	write_data,
		uint32_t	write_len
	)

spic以DMA的方式向flash写数据

参数

spic_base_config	配置结构体指针
write_data	数据指针
write_len	数据长度

返回: int32_t 0:成功;1:失败;

◆ spic_xip_config()

int32_t spic_xip_config	(	uint32_t	spic_base,
		spic_base_config_p	spic_base_config
	)

变量说明

◆ enum

typedef enum

初始值:

{
    FLASH_CLK_DIV_2 = 0,
    FLASH_CLK_DIV_4 = 1,
    FLASH_CLK_DIV_6 = 2,
    FLASH_CLK_DIV_8 = 3,
}flash_clk_div_t

< 功能:flash器件时钟与core_clk时钟频率关系功能:2分频功能:4分频功能:6分频功能:8分频

< 功能:发送命令、地址、数据的模式选择功能:单线模式功能:四线模式功能:八线模式功能:保留功能:单线MERGE模式功能:四线MERGE模式功能:保留功能:保留功能:DTR单线模式功能:DTR四线模式功能:DTR八线模式功能:保留功能:DTR单线MERGE模式功能:DTR四线MERGE模式功能:保留