基于STM32的AT45DB041读写正常的源程序V1.0 -

/******************************************************************************
文件名：main.c
编写者：尚晓飞
编写日期：10月18日
简要描述：AT45DB041读写程序
当前版本：V1.0
运行平台：STM32F10x
Copyright (c) 2008-2018, shangxiaofei.
All rights reserved.
*******************************************************************************/
/*********************** 修改记录 ******************************************/
/*-----------------------------------------------------------------------------
修改人: 尚晓飞
日　期: 2008年10月18日
版本: V1.0
描　述: AT45DB041读写测试基本正常 ,
u8 定义unsigned char改为 signed char 可在调试时显示ASCII码，方便查看,
注意CS，MISO 要接上拉电阻
-----------------------------------------------------------------------------*/
/* Includes ------------------------------------------------------------------*/
#include "platform_config.h"
#include "spi_flash.h"
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
/* Private define ------------------------------------------------------------*/
#define FLASH_WriteAddress 0x01 //9位地址 0 - 263
#define FLASH_ReadAddress FLASH_WriteAddress
#define FLASH_SectorToErase FLASH_WriteAddress
#define M25P64_FLASH_ID 0x202017
#define BufferSize (countof(Tx_Buffer)-1)
/* Private macro -------------------------------------------------------------*/
#define countof(a) (sizeof(a) / sizeof(*(a)))
/* Private variables ---------------------------------------------------------*/
u8 Tx_Buffer[] = "STM32F10x communication with an AT45DB041 SPI FLASH";
u8 Tx_Buffer1[] = "112233445566778899abcdefghifjfkdsajfkdsjakfjdskafjdksajfkdslafj;d";
u8 Index, Rx_Buffer[BufferSize];
u8 Rx_Buffer2[BufferSize];
volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = PASSED;
vu32 FLASH_ID = 0;
ErrorStatus HSEStartUpStatus;
/* Private functions ---------------------------------------------------------*/
TestStatus Buffercmp(u8* pBuffer1, u8* pBuffer2, u16 BufferLength);
void RCC_Configuration(void);
void GPIO_Configuration(void);
void NVIC_Configuration(void);
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* System clocks configuration */
RCC_Configuration();
/* NVIC configuration */
NVIC_Configuration();
/* GPIO configuration */
GPIO_Configuration();
/* Initialize the SPI FLASH driver */
SPI_FLASH_Init();
SPI_FLASH_Buffer1Write(Tx_Buffer, FLASH_WriteAddress, BufferSize);//写buffer1
SPI_FLASH_Buffer1Read(Rx_Buffer, FLASH_WriteAddress, BufferSize); //读buffer1
SPI_FLASH_Buffer2Write(Tx_Buffer1, FLASH_WriteAddress, BufferSize);//写buffer2
SPI_FLASH_Buffer2Read(Rx_Buffer, FLASH_ReadAddress, BufferSize); //读buffer2
SPI_FLASH_Buffer1ProgAutoErase(7);//buffer1写入flash
SPI_FLASH_Buffer1ProgAutoErase(8);//buffer1写入flash
SPI_FLASH_PageToBuffer2(1); //flash页读入buffer
SPI_FLASH_Buffer1Write(Tx_Buffer1, FLASH_WriteAddress, BufferSize);
SPI_FLASH_Buffer1Read(Rx_Buffer, FLASH_ReadAddress, BufferSize);
SPI_FLASH_Buffer2Read(Rx_Buffer2, FLASH_ReadAddress, BufferSize);
SPI_FLASH_BulkErase(0); //块擦除
//SPI_FLASH_PageErase(1);//页擦除
SPI_FLASH_PageToBuffer2(7); //flash页读入buffer
SPI_FLASH_Buffer2Read(Rx_Buffer2, FLASH_ReadAddress, BufferSize);
SPI_FLASH_PageToBuffer2(8); //flash页读入buffer
SPI_FLASH_Buffer2Read(Rx_Buffer2, FLASH_ReadAddress, BufferSize);
while (1)
{}
}
/*******************************************************************************
* Function Name : RCC_Configuration
* Description : Configures the different system clocks.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RCC_Configuration(void)
{
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_4);
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x08)
{}
}
/* Enable GPIO_LED clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_LED, ENABLE);
}
/*******************************************************************************
* Function Name : GPIO_Configuration
* Description : Configures the different GPIO ports.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure GPIO LED pin6 and pin7 as Output push-pull --------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIO_LED, &GPIO_InitStructure);
}
/*******************************************************************************
* Function Name : NVIC_Configuration
* Description : Configures Vector Table base location.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void NVIC_Configuration(void)
{
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
}
/*******************************************************************************
* Function Name : Buffercmp
* Description : Compares two buffers.
* Input : - pBuffer1, pBuffer2: buffers to be compared.
* : - BufferLength: buffer's length
* Output : None
* Return : PASSED: pBuffer1 identical to pBuffer2
* FAILED: pBuffer1 differs from pBuffer2
*******************************************************************************/
TestStatus Buffercmp(u8* pBuffer1, u8* pBuffer2, u16 BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
return FAILED;
}
pBuffer1++;
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