用的arduino uno板子,sd卡模块连在10,11,12,13口上,把原来的排母换成了排针,不能识别sd卡

Posted 2023-04-16

用的arduino uno板子,sd卡模块连在10,11,12,13口上,把原来的排母换成了排针,刚开始还能正常识别sd卡,但是过了一会就识别不了了,检测了sd卡模块没坏(用另一块mega2560),uno排针也接触正常,可就是识别不了sd卡

如果代码没错 看一看卡有没有和卡槽接触好 或者是你换成排针后脚位有没有对应上 参考技术A 试试下面这个程序 ，有什么问题都可以测试出来的 把对应的脚接好
/*
SD card test
This example shows how use the utility libraries on which the'
SD library is based in order to get info about your SD card.
Very useful for testing a card when you're not sure whether its working or not.
The circuit:
* SD card attached to SPI bus as follows:
** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila
** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila
** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila
** CS - depends on your SD card shield or module.
Pin 4 used here for consistency with other Arduino examples
created 28 Mar 2011
by Limor Fried
modified 9 Apr 2012
by Tom Igoe
*/
// include the SD library:
#include <SPI.h>
#include <SD.h>
// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;
// change this to match your SD shield or module;
// Arduino Ethernet shield: pin 4
// Adafruit SD shields and modules: pin 10
// Sparkfun SD shield: pin 8
const int chipSelect = 4;
void setup()

// Open serial communications and wait for port to open:
Serial.begin(9600);
/*while (!Serial)
; // wait for serial port to connect. Needed for Leonardo only
*/
// List Pin Mode
Serial.print("SS_PIN->");
Serial.println( SS_PIN );
Serial.print("MOSI_PIN->");
Serial.println( MOSI_PIN );
Serial.print("MISO_PIN->");
Serial.println( MISO_PIN );
Serial.print("SCK_PIN->");
Serial.println( SCK_PIN );
Serial.print("\nInitializing SD card...");
// we'll use the initialization code from the utility libraries
// since we're just testing if the card is working!
if (!card.init(SPI_HALF_SPEED, chipSelect))
Serial.println("initialization failed. Things to check:");
Serial.println("* is a card inserted?");
Serial.println("* is your wiring correct?");
Serial.println("* did you change the chipSelect pin to match your shield or module?");
return;
else
Serial.println("Wiring is correct and a card is present.");

// print the type of card
Serial.print("\nCard type: ");
switch (card.type())
case SD_CARD_TYPE_SD1:
Serial.println("SD1");
break;
case SD_CARD_TYPE_SD2:
Serial.println("SD2");
break;
case SD_CARD_TYPE_SDHC:
Serial.println("SDHC");
break;
default:
Serial.println("Unknown");

// Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
if (!volume.init(card))
Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
return;

// print the type and size of the first FAT-type volume
uint32_t volumesize;
Serial.print("\nVolume type is FAT");
Serial.println(volume.fatType(), DEC);
Serial.println();
volumesize = volume.blocksPerCluster(); // clusters are collections of blocks
volumesize *= volume.clusterCount(); // we'll have a lot of clusters
volumesize *= 512; // SD card blocks are always 512 bytes
Serial.print("Volume size (bytes): ");
Serial.println(volumesize);
Serial.print("Volume size (Kbytes): ");
volumesize /= 1024;
Serial.println(volumesize);
Serial.print("Volume size (Mbytes): ");
volumesize /= 1024;
Serial.println(volumesize);
Serial.println("\nFiles found on the card (name, date and size in bytes): ");
root.openRoot(volume);
// list all files in the card with date and size
root.ls(LS_R | LS_DATE | LS_SIZE);

void loop(void)

Arduino UNO 读取SD卡的信息

Arduino UNO 读取SD卡的信息

---

• SD卡座模块

接口描述：

控制接口：共6个引脚（GND、VCC、MISO、MOSI、SCK、CS），GND为地，VCC为供电电源，MISO、MOSI、SCK为SPI总线，CS为片选信号脚；

3.3V稳压电路：LDO稳压输出的3.3V为电平转换芯片、Micro SD卡供电；

电平转换电路：往Micro SD卡方向的信号转换成3.3V，MicroSD卡往控制接口方向的MISO信号也转换成了3.3V，一般AVR单片机系统都能读取该信号；

Micro SD卡座：是自弹式卡座，方便卡的插拔。

定位孔：2个M2螺丝定位孔，孔径为2.2mm，使模块便于安装定位，实现模块间组合；

接线说明

接线
		Arduino Uno   <----->