ICSP and SPI

i want to connect arduino uno to usb host shield and sd card module.

usb host shield is plugin in top of arduino uno.

if i use usb host shield to barcode its connect with usbhid_desc code.

if i use arduino and sd card module not with usb host shield, the sd card is working with cardinfo code.

but if usb host shield is plugin in top of arduino uno and sd card module connect to arduino with this

wiring:

arduino sdcard
13 sck
12 MISO
11 MOSI
4 CS

with sd card code, sd card can’t initialized.

sdcard code (cardinfo in example sd library)…

/*
  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
// MKRZero SD: SDCARD_SS_PIN
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 native USB port only
  }


  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) {

}

and this is usb host shield code(USBHID_desc from usb host shield library)…

#include <hid.h>
#include <hiduniversal.h>
#include <hidescriptorparser.h>
#include <usbhub.h>
#include "pgmstrings.h"

// Satisfy the IDE, which needs to see the include statment in the ino too.
#ifdef dobogusinclude
#include <spi4teensy3.h>
#include <SPI.h>
#endif

class HIDUniversal2 : public HIDUniversal
{
public:
    HIDUniversal2(USB *usb) : HIDUniversal(usb) {};

protected:
    uint8_t OnInitSuccessful();
};

uint8_t HIDUniversal2::OnInitSuccessful()
{
    uint8_t    rcode;

    HexDumper<USBReadParser, uint16_t, uint16_t>    Hex;
    ReportDescParser                                Rpt;

    if ((rcode = GetReportDescr(0, &Hex)))
        goto FailGetReportDescr1;

    if ((rcode = GetReportDescr(0, &Rpt)))
	goto FailGetReportDescr2;

    return 0;

FailGetReportDescr1:
    USBTRACE("GetReportDescr1:");
    goto Fail;

FailGetReportDescr2:
    USBTRACE("GetReportDescr2:");
    goto Fail;

Fail:
    Serial.println(rcode, HEX);
    Release();
    return rcode;
}

USB Usb;
//USBHub Hub(&Usb);
HIDUniversal2 Hid(&Usb);
UniversalReportParser Uni;

void setup()
{
  Serial.begin( 115200 );
#if !defined(__MIPSEL__)
  while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
#endif
  Serial.println("Start");

  if (Usb.Init() == -1)
      Serial.println("OSC did not start.");

  delay( 200 );

  if (!Hid.SetReportParser(0, &Uni))
      ErrorMessage<uint8_t>(PSTR("SetReportParser"), 1  );
}

void loop()
{
    Usb.Task();
}

what should i do if i want to connect sd card module and usb host shield to arduino and working?

thank you :smiley:

Ensure that both CS pins (10 for the USB host shield, 4 for the SD card reader) are set as outputs and pulled HIGH.

I don't see how this relates to the ICSP in the title of your post.

pylon:
Ensure that both CS pins (10 for the USB host shield, 4 for the SD card reader) are set as outputs and pulled HIGH.

I don’t see how this relates to the ICSP in the title of your post.

i think the usb host shield use icsp because its plug on top of arduino,

and if i use 11,12,13 pin in usb host shield for sd card andi use pin4 for CS

i use this code and the output is “Initializing SD card…initialization failed!”

this code is ReadWrite from library sd i just add pinmode…

/*
  SD card read/write

 This example shows how to read and write data to and from an SD card file
 The circuit:
 * SD card attached to SPI bus as follows:
 ** MOSI - pin 11
 ** MISO - pin 12
 ** CLK - pin 13
 ** CS - pin 4 (for MKRZero SD: SDCARD_SS_PIN)

 created   Nov 2010
 by David A. Mellis
 modified 9 Apr 2012
 by Tom Igoe

 This example code is in the public domain.

 */

#include <SPI.h>
#include <SD.h>

File myFile;

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  pinMode(4,OUTPUT);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }


  Serial.print("Initializing SD card...");

  if (!SD.begin(4)) {
    Serial.println("initialization failed!");
    return;
  }
  Serial.println("initialization done.");

  // open the file. note that only one file can be open at a time,
  // so you have to close this one before opening another.
  myFile = SD.open("test.txt", FILE_WRITE);

  // if the file opened okay, write to it:
  if (myFile) {
    Serial.print("Writing to test.txt...");
    myFile.println("testing 1, 2, 3.");
    // close the file:
    myFile.close();
    Serial.println("done.");
  } else {
    // if the file didn't open, print an error:
    Serial.println("error opening test.txt");
  }

  // re-open the file for reading:
  myFile = SD.open("test.txt");
  if (myFile) {
    Serial.println("test.txt:");

    // read from the file until there's nothing else in it:
    while (myFile.available()) {
      Serial.write(myFile.read());
    }
    // close the file:
    myFile.close();
  } else {
    // if the file didn't open, print an error:
    Serial.println("error opening test.txt");
  }
}

void loop() {
  // nothing happens after setup
}

Did you read my last post? I cannot find anything in your code that sets pin 10 as output and pull it HIGH. Do you find it?

riandanualdy writes:

i think the usb host shield use icsp because its plug on top of arduino,

In case you are not sure, the ICSP connector is SPI, the pins go to the SPI pins, 11, 12 and 13 on a standard UNO.