SPI Flash

spi–flash

SPI Flash库使用MCU中的串行闪光记忆

 - Notice : This library has not free in this time 

发布

• 版本：0.0.0

• 类型：嵌入式软件。

• 支持 ：

           - ARM LPC/STM32 series  
  

• 程序语言：C/C ++

• 特性 ：

• 更改：

• 必需的库/驱动程序：

           - CMSIS and SPL driver fo LPC series
           - HAL driver for STM32 series  
  

概述

初始化和去原始化功能：

 uint8_t SPI_Flash_Init (SPI_Flash_TypeDef *_flash);

操作功能：

 /* ::::::::::::::::: Flash Information ::::::::::::::::: */
uint8_t SPI_Flash_GetID (SPI_Flash_TypeDef *_flash);

uint8_t SPI_Flash_GetUniqID (SPI_Flash_TypeDef *_flash);

/* ::::::::::::::::::: Flash Control ::::::::::::::::::: */
uint8_t SPI_Flash_WriteEnable (SPI_Flash_TypeDef *_flash);

uint8_t SPI_Flash_WriteDisable (SPI_Flash_TypeDef *_flash);

/* :::::::::::::::::: Flash Registers :::::::::::::::::: */
uint8_t SPI_Flash_ReadStatusRegister (SPI_Flash_TypeDef *_flash, SPI_Flash_RegTypeDef _register);

uint8_t SPI_Flash_WriteStatusRegister (SPI_Flash_TypeDef *_flash, SPI_Flash_RegTypeDef _register, uint8_t _data);

/* :::::::::::::::::::: Flash Status ::::::::::::::::::: */
uint8_t SPI_Flash_WaitForWriteEnd (SPI_Flash_TypeDef *_flash);

/* :::::::::::::::::::: Flash Erase :::::::::::::::::::: */
uint8_t SPI_Flash_ChipErase (SPI_Flash_TypeDef *_flash);

uint8_t SPI_Flash_SectorErase (SPI_Flash_TypeDef *_flash, uint32_t _sector);

uint8_t SPI_Flash_BlockErase (SPI_Flash_TypeDef *_flash, uint32_t _block);

/* :::::::::::::::::::: Flash Write :::::::::::::::::::: */
uint8_t SPI_Flash_Write (SPI_Flash_TypeDef *_flash, uint8_t _data, uint32_t _address);

uint8_t SPI_Flash_PageWrite (SPI_Flash_TypeDef *_flash, uint8_t *_pData, uint32_t _page, uint32_t _offset, uint32_t _size);

uint8_t SPI_Flash_SectorWrite (SPI_Flash_TypeDef *_flash, uint8_t *_pData, uint32_t _sector, uint32_t _offset, uint32_t _size);

uint8_t SPI_Flash_BlockWrite (SPI_Flash_TypeDef *_flash, uint8_t * _pData, uint32_t _block, uint32_t _offset, uint32_t _size);

uint8_t SPI_Flash_BurstWrite (SPI_Flash_TypeDef *_flash, uint8_t *_pData, uint32_t _address, uint32_t _size);

/* :::::::::::::::::::: Flash Read ::::::::::::::::::::: */
uint8_t SPI_Flash_Read (SPI_Flash_TypeDef *_flash, uint8_t *_data, uint32_t _address);

uint8_t SPI_Flash_PageRead (SPI_Flash_TypeDef *_flash, uint8_t *_pData, uint32_t _page, uint32_t _offset, uint32_t _size);

uint8_t SPI_Flash_SectorRead (SPI_Flash_TypeDef *_flash, uint8_t *_pData, uint32_t _sector, uint32_t _offset, uint32_t _size);

uint8_t SPI_Flash_BlockRead (SPI_Flash_TypeDef *_flash, uint8_t *_pData, uint32_t _block, uint32_t _offset, uint32_t _size);

uint8_t SPI_Flash_BurstRead (SPI_Flash_TypeDef *_flash, uint8_t *_pData, uint32_t _address, uint32_t _size);

宏：

None   

指导

该库可用如下：

1。配置MCU SPI并初始化它

2。在项目中添加库标头和源文件

3。例如，在“ spi_flash_conf.h”中配置库：

 /* ---------- Controller Series --------- */
# define _LPC17XX

/* ------ Required Driver.Library ------- */
# include \" lpc_spi_ex.h \"
# include \" lpc_gpio_ex.h \"

/* ----------- Configuration ------------ */
/* ............ SPI ............ */
# define _SPI_FLASH_PERIPHERAL LPC_SPI
# define _SPI_FLASH_TIMEOUT    100

/* ............ RTOS ........... */
# define _SPI_FLASH_USE_RTOS   0

/* ..... Flash manufacturer .... */
# define _SPI_FLASH_WINBOND 

4。创建闪存对象，设置特定的GPIO并初始化它，例如：

• 初始化器：

   SPI_Flash_Init (SPI_Flash_TypeDef *_flash);

• 参数：

  • _flash：指向Flash Struct的指针

• 例子：

  SPI_Flash_TypeDef   Flash1;
  
  Flash1.CS_GPIO_Port = 0 ;
  Flash1.CS_GPIO_Pin  = ( 1 << 16 );
  
  SPI_Flash_Init (&Flash1);

5。使用闪存操作功能

 SPI_Flash_ChipErase (&Flash1);
SPI_Flash_SectorWrite (&Flash1, Tx_Buf, 0 , 10 , 44 );

例子

示例1：与LPC1768初始化并使用外部闪存

# include \" lpc17xx.h \"
# include \" lpc17xx_gpio.h \"
# include \" lpc17xx_spi.h \"
# include \" lpc17xx_libcfg.h \"
# include \" lpc17xx_pinsel.h \"

# include \" lpc_spi_ex.h \"
# include \" spi_flash.h \"

SPI_CFG_Type SPI_ConfigStruct;

uint8_t Tx_Buf[ 44 ] = \" Hello from master!, this is an test program \\n \" ;
uint8_t Rx_Buf[ 50 ];

int main ()
{
	
	SystemInit ();
	
	/* ---------- Setup GPIO --------- */
	PINSEL_CFG_Type PinCfg;
	
	/*
	* Initialize SPI pin connect
	* P0.15 - SCK;
	* P0.0 / P0.1 - SSEL - used as GPIO
	* P0.17 - MISO
	* P0.18 - MOSI
	*/
	
	PinCfg. Funcnum   = 3 ;
	PinCfg. OpenDrain = 0 ;
	PinCfg. Pinmode   = 0 ;
	PinCfg. Portnum   = 0 ;
	PinCfg. Pinnum    = 15 ;
	PINSEL_ConfigPin (&PinCfg);
	
	PinCfg. Pinnum = 17 ;
	PINSEL_ConfigPin (&PinCfg);
	
	PinCfg. Pinnum = 18 ;
	PINSEL_ConfigPin (&PinCfg);
	
	/* Set GPIO Direction */
	GPIO_SetDir ( 0 , ( 1 << 16 ), 1 );
	GPIO_SetDir ( 0 , ( 1 << 19 ), 1 );
	GPIO_SetDir ( 0 , ( 1 << 7 ), 1 );
	
	GPIO_SetValue ( 0 , ( 1 << 16 ));
	GPIO_SetValue ( 0 , ( 1 << 19 ));
	GPIO_SetValue ( 0 , ( 1 << 7 ));
	
	/* ---------- Setup SPI ---------- */
	SPI_ConfigStruct. CPHA      = SPI_CPHA_FIRST;
	SPI_ConfigStruct. CPOL      = SPI_CPOL_HI;
	SPI_ConfigStruct. ClockRate = 300000 ;
	SPI_ConfigStruct. DataOrder = SPI_DATA_MSB_FIRST;
	SPI_ConfigStruct. Databit   = SPI_DATABIT_8;
	SPI_ConfigStruct. Mode      = SPI_MASTER_MODE;
	
	SPI_Init (LPC_SPI, &SPI_ConfigStruct);

	/* --------- Wait to init --------- */
	SPI_Delay ( 1 );

	/* ~~~~~~~~~~~~~~~~~~ Flash Example ~~~~~~~~~~~~~~~~~ */
	/* --------- Setup Flash ---------- */
	SPI_Flash_TypeDef   Flash1;
	SPI_Flash_TypeDef   Flash2;
	SPI_Flash_TypeDef   Flash3;

	Flash1. CS_GPIO_Port = 0 ;
	Flash1. CS_GPIO_Pin  = ( 1 << 16 );
	
	Flash2. CS_GPIO_Port = 0 ;
	Flash2. CS_GPIO_Pin  = ( 1 << 19 );

	Flash3. CS_GPIO_Port = 0 ;
	Flash3. CS_GPIO_Pin  = ( 1 << 7 );
	
	/* ----------- Commands ----------- */
	SPI_Flash_Init (&Flash1);
	SPI_Flash_Init (&Flash2);
	SPI_Flash_Init (&Flash3);
	
	SPI_Flash_ChipErase (&Flash1);
	SPI_Flash_ChipErase (&Flash2);
	SPI_Flash_ChipErase (&Flash3);
	
	SPI_Flash_SectorWrite (&Flash2, Tx_Buf, 0 , 10 , 44 );
	SPI_Flash_SectorRead (&Flash2, Rx_Buf, 0 , 10 , 44 );
	
	while ( 1 )
	{
		
	}
	/* Loop forever */
	
}
   

进行的测试：

• 在LPC17 XX核心上运行
• 在STM32 FX内核上运行

开发人员：

• Majid Derhambakhsh