STM32 SPI读写数据打印不出来

Jeremyli 提问时间：2017-5-18 10:30 /

大神帮忙看看为啥只能读ID串口打印,其余擦除，在某个地址写数据，然后读数据都打印不出来。串口打印没问题！求帮忙指导！新手上路
#include "stm32f10x.h"
#include "pbdata.h"

//要写入到W25Q16的字符串数组
const u8 TEXT_Buffer[]={"Explorer STM32F4 SPI TEST"};
#define SIZE sizeof(TEXT_Buffer)
int main(void)
{

u16 id=0;
u8 datatemp[SIZE];
u32 FLASH_SIZE;

  FLASH_SIZE=8*1024*1024; //FLASH 大小为8M字节

USART1_Configuration(9600);
NVIC_Configuration();
SPI_Configuration();
// id=SPI_Flash_ReadID();
// printf("%X \r\n",id);

  SPI_Flash_Write_Page((u8*)TEXT_Buffer,FLASH_SIZE-100,SIZE);
  delay_ms(100);
  SPI_Flash_Read(datatemp,FLASH_SIZE-100,SIZE); //从倒数第100个地址处开始,读出SIZE个字节
  printf("%s\r\n",datatemp);
while(1)
{
}
}

#include "pbdata.h"
u16 SPI_FLASH_TYPE=W25Q64;//默认就是25Q64
void SPI_Configuration(void)
{
  SPI_InitTypeDef  SPI_InitStructure;
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Enable SPI1 and GPIO clocks */
  /*!< SPI_FLASH_SPI_CS_GPIO, SPI_FLASH_SPI_MOSI_GPIO,
   SPI_FLASH_SPI_MISO_GPIO, SPI_FLASH_SPI_DETECT_GPIO
   and SPI_FLASH_SPI_SCK_GPIO Periph clock enable */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOD, ENABLE);
  /*!< SPI_FLASH_SPI Periph clock enable */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);


  /*!< Configure SPI_FLASH_SPI pins: SCK */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  /*!< Configure SPI_FLASH_SPI pins: MISO */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  /*!< Configure SPI_FLASH_SPI pins: MOSI */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  /*!< Configure SPI_FLASH_SPI_CS_PIN pin: SPI_FLASH Card CS pin */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  /* SPI1 configuration */
  // W25X16: data input on the DIO pin is sampled on the rising edge of the CLK.
  // Data on the DO and DIO pins are clocked out on the falling edge of CLK.
  SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
  SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
  SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
  SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
  SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
  SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
  SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
  SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
  SPI_InitStructure.SPI_CRCPolynomial = 7;
  SPI_Init(SPI1, &SPI_InitStructure);
  /* Enable SPI1  */
SPI_FLASH_H;
  SPI_Cmd(SPI1, ENABLE);
}
u8 SPI_SendByte(u8 byte)
{
  while(SPI_I2S_GetFlagStatus(SPI1,SPI_I2S_FLAG_TXE)==RESET);
  SPI_I2S_SendData(SPI1,byte);
  while(SPI_I2S_GetFlagStatus(SPI1,SPI_I2S_FLAG_RXNE)==RESET);
  return SPI_I2S_ReceiveData(SPI1);
}
//读取SPI_FLASH的状态寄存器
//BIT7  6 5 4 3 2 1 0
//SPR RV  TB BP2 BP1 BP0 WEL BUSY
//SPR:默认0,状态寄存器保护位,配合WP使用
//TB,BP2,BP1,BP0:FLASH区域写保护设置
//WEL:写使能锁定
//BUSY:忙标记位(1,忙;0,空闲)
//默认:0x00
u8 SPI_Flash_ReadSR(void)
{
  u8 byte=0;
  SPI_FLASH_L;                         //使能器件
  SPI_SendByte(W25X_ReadStatusReg); //发送读取状态寄存器命令
  byte=SPI_SendByte(0Xff);          //读取一个字节
  SPI_FLASH_H;                         //取消片选
  return byte;
}
//写SPI_FLASH状态寄存器
//只有SPR,TB,BP2,BP1,BP0(bit 7,5,4,3,2)可以写!!!
void SPI_FLASH_Write_SR(u8 sr)
{
  SPI_FLASH_L;                         //使能器件
  SPI_SendByte(W25X_WriteStatusReg); //发送写取状态寄存器命令
  SPI_SendByte(sr);             //写入一个字节
  SPI_FLASH_H;                         //取消片选
}
//SPI_FLASH写使能
//将WEL置位
void SPI_FLASH_Write_Enable(void)
{
  SPI_FLASH_L;                         //使能器件
  SPI_SendByte(W25X_WriteEnable);    //发送写使能
  SPI_FLASH_H;                         //取消片选
}
//SPI_FLASH写禁止
//将WEL清零
void SPI_FLASH_Write_Disable(void)
{
  SPI_FLASH_L;                         //使能器件
  SPI_SendByte(W25X_WriteDisable);    //发送写禁止指令
  SPI_FLASH_H;                         //取消片选
}
//读取芯片ID W25X16的ID:0XEF14
u16 SPI_Flash_ReadID(void)
{
  u16 Temp = 0;
  SPI_FLASH_L;
  SPI_SendByte(0x90);//发送读取ID命令
  SPI_SendByte(0x00);
  SPI_SendByte(0x00);
  SPI_SendByte(0x00);
  Temp|=SPI_SendByte(0xFF)<<8;
  Temp|=SPI_SendByte(0xFF);
  SPI_FLASH_H;
  return Temp;
}
//读取SPI FLASH
//在指定地址开始读取指定长度的数据
//pBuffer:数据存储区
//ReadAddr:开始读取的地址(24bit)
//NumByteToRead:要读取的字节数(最大65535)
void SPI_Flash_Read(u8* pBuffer,u32 ReadAddr,u16 NumByteToRead)
{
  u16 i;
  SPI_FLASH_L;                         //使能器件
SPI_SendByte(W25X_ReadData);       //发送读取命令
SPI_SendByte((u8)((ReadAddr)>>16));  //发送24bit地址
SPI_SendByte((u8)((ReadAddr)>>8));
SPI_SendByte((u8)ReadAddr);
for(i=0;i<NumByteToRead;i++)
  {
      pBuffer[i]=SPI_SendByte(0XFF); //循环读数
}
  SPI_FLASH_H;                         //取消片选
}
//SPI在一页(0~65535)内写入少于256个字节的数据
//在指定地址开始写入最大256字节的数据
//pBuffer:数据存储区
//WriteAddr:开始写入的地址(24bit)
//NumByteToWrite:要写入的字节数(最大256),该数不应该超过该页的剩余字节数!!!
void SPI_Flash_Write_Page(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite)
{
  u16 i;
SPI_FLASH_Write_Enable();                //SET WEL
  SPI_FLASH_L;                         //使能器件
SPI_SendByte(W25X_PageProgram);    //发送写页命令
SPI_SendByte((u8)((WriteAddr)>>16)); //发送24bit地址
SPI_SendByte((u8)((WriteAddr)>>8));
SPI_SendByte((u8)WriteAddr);
for(i=0;i<NumByteToWrite;i++)
  SPI_SendByte(pBuffer[i]);//循环写数
  SPI_FLASH_H;                         //取消片选
  SPI_Flash_Wait_Busy();       //等待写入结束
}
//无检验写SPI FLASH
//必须确保所写的地址范围内的数据全部为0XFF,否则在非0XFF处写入的数据将失败!
//具有自动换页功能
//在指定地址开始写入指定长度的数据,但是要确保地址不越界!
//pBuffer:数据存储区
//WriteAddr:开始写入的地址(24bit)
//NumByteToWrite:要写入的字节数(最大65535)
//CHECK OK
void SPI_Flash_Write_NoCheck(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite)
{
  u16 pageremain;
  pageremain=256-WriteAddr%256; //单页剩余的字节数
  if(NumByteToWrite<=pageremain)pageremain=NumByteToWrite;//不大于256个字节
  while(1)
  {
SPI_Flash_Write_Page(pBuffer,WriteAddr,pageremain);
if(NumByteToWrite==pageremain)break;//写入结束了
else //NumByteToWrite>pageremain
{
   pBuffer+=pageremain;
   WriteAddr+=pageremain;
   NumByteToWrite-=pageremain;    //减去已经写入了的字节数
   if(NumByteToWrite>256)pageremain=256; //一次可以写入256个字节
   else pageremain=NumByteToWrite; //不够256个字节了
}
  }
  ;
}
//写SPI FLASH
//在指定地址开始写入指定长度的数据
//该函数带擦除操作!
//pBuffer:数据存储区
//WriteAddr:开始写入的地址(24bit)
//NumByteToWrite:要写入的字节数(最大65535)
u8 SPI_FLASH_BUF[4096];
void SPI_Flash_Write(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite)
{
  u32 secpos;
  u16 secoff;
  u16 secremain;
  u16 i;

  secpos=WriteAddr/4096;//扇区地址 0~511 for w25x16
  secoff=WriteAddr%4096;//在扇区内的偏移
  secremain=4096-secoff;//扇区剩余空间大小
  if(NumByteToWrite<=secremain)secremain=NumByteToWrite;//不大于4096个字节
  while(1)
  {
SPI_Flash_Read(SPI_FLASH_BUF,secpos*4096,4096);//读出整个扇区的内容
for(i=0;i<secremain;i++)//校验数据
   {
   if(SPI_FLASH_BUF[secoff+i]!=0XFF)break;//需要擦除
   }
if(i<secremain)//需要擦除
   {
      SPI_Flash_Erase_Sector(secpos);//擦除这个扇区
      for(i=0;i<secremain;i++) //复制
      {
         SPI_FLASH_BUF[i+secoff]=pBuffer[i];
      }
      SPI_Flash_Write_NoCheck(SPI_FLASH_BUF,secpos*4096,4096);//写入整个扇区
   }else SPI_Flash_Write_NoCheck(pBuffer,WriteAddr,secremain);//写已经擦除了的,直接写入扇区剩余区间.
if(NumByteToWrite==secremain)break;//写入结束了
else//写入未结束
{
   secpos++;//扇区地址增1
   secoff=0;//偏移位置为0
   pBuffer+=secremain;  //指针偏移
   WriteAddr+=secremain;//写地址偏移
   NumByteToWrite-=secremain; //字节数递减
   if(NumByteToWrite>4096)secremain=4096; //下一个扇区还是写不完
   else secremain=NumByteToWrite; //下一个扇区可以写完了
}
  };
}
//擦除整个芯片
//整片擦除时间:
//W25X16:25s
//W25X32:40s
//W25X64:40s
//等待时间超长...
void SPI_Flash_Erase_Chip(void)
{
SPI_FLASH_Write_Enable();                //SET WEL
SPI_Flash_Wait_Busy();
SPI_FLASH_L;                         //使能器件
SPI_SendByte(W25X_ChipErase);       //发送片擦除命令
  SPI_FLASH_H;                         //取消片选
  SPI_Flash_Wait_Busy();       //等待芯片擦除结束
}
//擦除一个扇区
//Dst_Addr:扇区地址 0~511 for w25x16
//擦除一个山区的最少时间:150ms
void SPI_Flash_Erase_Sector(u32 Dst_Addr)
{
Dst_Addr*=4096;
SPI_FLASH_Write_Enable();                //SET WEL
SPI_Flash_Wait_Busy();
SPI_FLASH_L;                         //使能器件
SPI_SendByte(W25X_SectorErase);    //发送扇区擦除指令
SPI_SendByte((u8)((Dst_Addr)>>16));  //发送24bit地址
SPI_SendByte((u8)((Dst_Addr)>>8));
SPI_SendByte((u8)Dst_Addr);
  SPI_FLASH_H;                         //取消片选
SPI_Flash_Wait_Busy();       //等待擦除完成
}
//等待空闲
void SPI_Flash_Wait_Busy(void)
{
  while ((SPI_Flash_ReadSR()&0x01)==0x01); // 等待BUSY位清空
}
//进入掉电模式
void SPI_Flash_PowerDown(void)
{
SPI_FLASH_L;                         //使能器件
SPI_SendByte(W25X_PowerDown);       //发送掉电命令
  SPI_FLASH_H;                         //取消片选
delay_us(3);                            //等待TPD
}
//唤醒
void SPI_Flash_WAKEUP(void)
{
SPI_FLASH_L;                         //使能器件
SPI_SendByte(W25X_ReleasePowerDown); //  send W25X_PowerDown command 0xAB
  SPI_FLASH_H;                         //取消片选
delay_us(3);                            //等待TRES1
}

#ifndef _W25Q64BV_H
#define _W25Q64BV_H
#include "pbdata.h"
//W25X系列/Q系列芯片列表
//W25Q80 ID  0XEF13
//W25Q16 ID  0XEF14
//W25Q32 ID  0XEF15
//W25Q32 ID  0XEF16
#define W25Q80  0XEF13
#define W25Q16  0XEF14
#define W25Q32  0XEF15
#define W25Q64  0XEF16
extern u16 SPI_FLASH_TYPE;//定义我们使用的flash芯片型号
#define SPI_FLASH_L GPIO_ResetBits(GPIOE,GPIO_Pin_6);
#define SPI_FLASH_H GPIO_SetBits(GPIOE,GPIO_Pin_6);

////////////////////////////////////////////////////////////////////////////

//指令表
#define W25X_WriteEnable 0x06
#define W25X_WriteDisable 0x04
#define W25X_ReadStatusReg  0x05
#define W25X_WriteStatusReg  0x01
#define W25X_ReadData    0x03
#define W25X_FastReadData 0x0B
#define W25X_FastReadDual 0x3B
#define W25X_PageProgram 0x02
#define W25X_BlockErase 0xD8
#define W25X_SectorErase 0x20
#define W25X_ChipErase 0xC7
#define W25X_PowerDown 0xB9
#define W25X_ReleasePowerDown 0xAB
#define W25X_DeviceID    0xAB
#define W25X_ManufactDeviceID 0x90
#define W25X_JedecDeviceID  0x9F
void SPI_Configuration(void);
u8 SPI_SendByte(u8 byte);
u16  SPI_Flash_ReadID(void);    //读取FLASH ID
u8  SPI_Flash_ReadSR(void);       //读取状态寄存器
void SPI_FLASH_Write_SR(u8 sr); //写状态寄存器
void SPI_FLASH_Write_Enable(void);  //写使能
void SPI_FLASH_Write_Disable(void); //写保护
void SPI_Flash_Write_NoCheck(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite);
void SPI_Flash_Write_Page(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite);//写入flash页
void SPI_Flash_Read(u8* pBuffer,u32 ReadAddr,u16 NumByteToRead); //读取flash
void SPI_Flash_Write(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite);//写入flash
void SPI_Flash_Erase_Chip(void);    //整片擦除
void SPI_Flash_Erase_Sector(u32 Dst_Addr);//扇区擦除
void SPI_Flash_Wait_Busy(void);          //等待空闲
void SPI_Flash_PowerDown(void);          //进入掉电模式
void SPI_Flash_WAKEUP(void);    //唤醒
#endif