stm32讀取SD卡信息程序,通過SPI的方式

ID:225248 · 發表于 2017-8-6 19:00

這是一個讀取SD卡信息的程序
所有資料51hei提供下載:

SD程序.rar (2.53 MB, 下載次數: 223)

stm32單片機源程序如下:

/**
******************************************************************************
* @file USART/Printf/main.c
* @author MCD Application Team
* @version V3.3.0
* @date 04/16/10
* @brief Main program body
******************************************************************************
* @copy
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "delay.h"
#include <stdio.h>
#include <stdlib.h>
#include "sd.h"
#include "usart.h"
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Private function prototypes -----------------------------------------------*/
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/**
* @brief Main program
* @param None
* @retval None
*/
u8 SD_Buffer[512];//SD卡數據緩存區
int main(void)
{
u8 tmp;
u16 mm,nn;
u32 nummber,nummber_bak;
//設置優先級分組:搶占優先級和響應優先級各2位
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
//設置向量表的位置和偏移:在FLASH中偏移為0
NVIC_SetVectorTable(NVIC_VectTab_FLASH,0);
//USART1初始化
USART1_Init();
//檢測當前系統時鐘SystemCoreClock
SystemCoreClockUpdate ();
//檢測SD卡,失敗則2秒后繼續檢測
while(SD_Init()!=0)
{
printf("\r\n未檢測到SD卡！");
delay_ms(SystemCoreClock,1000);
delay_ms(SystemCoreClock,1000);
}
printf("\r\n初始化SD卡成功！\r\n");
//邏輯0扇區的物理扇區號
nummber_bak=SD_GetLogic0();
while(1)
{
RxCounter1=0;
printf("\r\n請發送要讀取的邏輯扇區號\r\n");
do
{ //等待接收停止100mS
tmp = RxCounter1;
delay_ms(SystemCoreClock,100);
}while(RxCounter1==0 || tmp!=RxCounter1);
//將接收到的字符串轉換成數值
RxBuffer1[RxCounter1]='\0';
nummber=atol((const char *)RxBuffer1);
if(SD_ReadBlock(SD_Buffer,nummber_bak+nummber,512)==0)//讀指定扇區
printf("\r\n第%d邏輯扇區數據:",nummber);
for(mm=0;mm<32;mm++)
{
printf("\r\n%03xH ",mm<<4);
for(nn=0;nn<16;nn++)
printf("%02x ",SD_Buffer[(mm<<3)+nn]);
}
printf("\r\n");
}
// while (1)
// {
// delay_ms(SystemCoreClock,1000);
// printf("\r\n串口1測試程序");
// }
}
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(USART1, (uint8_t) ch); /*發送一個字符函數*/
/* Loop until the end of transmission */
while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)/*等待發送完成*/
{
}
return ch;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/

復制代碼

ID:290380 · 發表于 2018-5-28 21:41

不錯哦，學習一下

ID:122107 · 發表于 2018-7-3 13:16

不錯哦，學習一下

ID:138247 · 發表于 2018-7-24 15:31

不錯哦，學習一下

ID:221379 · 發表于 2019-3-26 11:14

好東西，學習一下

ID:318452 · 發表于 2019-7-23 21:51

看下學習下

ID:349782 · 發表于 2019-9-25 10:50

好東西，學習一下

ID:739683 · 發表于 2020-5-11 18:00

不錯，有參考價值

ID:285416 · 發表于 2020-7-18 05:51

LZ，給個原圖嘛，
  //使能PA時鐘,PC時鐘,SPI1時鐘和APB2復用功能時鐘
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC, ENABLE);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1 | RCC_APB2Periph_AFIO, ENABLE);

  //關閉SPI所有相關器件:SD_CS(SD卡),W25_CS(W25X16),T_CS(觸摸屏),N_CS(RF24L01無線模塊)
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
  GPIO_SetBits(GPIOC,GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12);

  //使能SPI1引腳(SCK和MOMI)推挽輸出
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  //使能SPI1引腳(MIMO)上拉輸入
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

雖然有說明，還是不確定-----.C12 是CS,上面的，C9-10-11,是關閉一些外設的，這個必有的嘛
還有，就是，CLK，和MOMI，對應是，A5和7嘛

帳號		自動登錄	找回密碼
密碼			立即注冊

久久久久久久999_99精品久久精品一区二区爱城_成人欧美一区二区三区在线播放_国产精品日本一区二区不卡视频_国产午夜视频_欧美精品在线观看免费

stm32讀取SD卡信息程序,通過SPI的方式

相關帖子