Problem with CopyFromSD

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darioconcilio

Well-known member
Hi to all,
I'm trying CopyFromSD with S25FL256S Flash.

I'm not sure if I connected correctly flash and SD shield (Sparkfun with red shield)

Flash to Teensy 3.2:
CS => 9
SCK => 14
SO => 7
SI => 8

SD to Teensy 3.2:
CS => 10
SCK => 13
DO => 12
DI => 11

Now:
EraseEverything : OK
Output:
Flash Memory has 33554432 bytes.
Erasing ALL Flash Memory:
estimated wait: 67 seconds.
Yes, full chip erase is SLOW!
............................................................
Erase completed
actual wait: 62 seconds.

RawHardwareTest: OK
Raw SerialFlash Hardware Test

Read Chip Identification:
JEDEC ID: 1 2 19
Part Nummber: S25FL256S
Memory Size: 33554432 bytes
Block Size: 65536 bytes

Reading Chip...

Writing 16384 signatures

Double Checking All Signatures:
all 16384 signatures read ok

Checking Signature Pairs
all 8191 signature pairs read ok

Checking Read-While-Write (Program Suspend)
write 256 bytes at 256
write time was 418 microseconds.
read-while-writing: 00 00 00 00 15 F5 95 4B
test passed, good read while writing

Checking Read-While-Erase (Erase Suspend)
erase time was 108330 microseconds.
erase correctly erased 65536 bytes
read-while-erasing: 00 00 00 00 15 F5 95 4B
test passed, good read while erasing

All Tests Passed :)

Test data was written to your chip. You must run
EraseEverything before using this chip for files.

CardInfo: OK
Initializing SD card...Wiring is correct and a card is present.

Card type: SD2

Volume type is FAT16

Volume size (bytes): 2032271360
Volume size (Kbytes): 1984640
Volume size (Mbytes): 1938

Files found on the card (name, date and size in bytes):
SETUP.CFG 2000-01-01 01:00:00 81
FOLDER1/ 2016-02-12 14:24:18
FILE1.RAW 2016-05-21 16:52:26 2887332
FILE2.RAW 2016-05-31 20:15:46 97180
FILE3.RAW 2016-05-31 20:15:54 41448
[...]

Now I would to exec CopyFromSD:

One question: I think that SD could contains a list of file without folders, is it correct? Or does it keep creation folder also? (I think no.)

Now I try to exec and it responses this:

Copy all files from SD Card to SPI Flash
Unable to access SD card
Unable to access SD card

Code:
#include <SerialFlash.h>
#include <SD.h>
#include <SPI.h>

const int SDchipSelect = 10;    // Audio Shield has SD card CS on pin 10
const int FlashChipSelect = 9; // digital pin for flash chip CS pin

void setup() {
  //uncomment these if using Teensy audio shield
  SPI.setSCK(14);  // Audio shield has SCK on pin 14
  SPI.setMOSI(7);  // Audio shield has MOSI on pin 7
  SPI.setMISO(8);

  //uncomment these if you have other SPI chips connected
  //to keep them disabled while using only SerialFlash
  //pinMode(4, INPUT_PULLUP);
  //pinMode(10, INPUT_PULLUP);

  // wait up to 10 seconds for Arduino Serial Monitor
  unsigned long startMillis = millis();
  while (!Serial && (millis() - startMillis < 10000)) ;
  delay(100);
  Serial.println("Copy all files from SD Card to SPI Flash");

  if (!SD.begin(SDchipSelect)) {
    error("Unable to access SD card");
  }
  if (!SerialFlash.begin(FlashChipSelect)) {
    error("Unable to access SPI Flash chip");
  }

  int count = 0;
  File rootdir = SD.open("/");
  while (1) {
    // open a file from the SD card
    Serial.println();
    File f = rootdir.openNextFile();
    if (!f) break;
    const char *filename = f.name();
    Serial.print(filename);
    Serial.print("    ");
    unsigned long length = f.size();
    Serial.println(length);

    // check if this file is already on the Flash chip
    if (SerialFlash.exists(filename)) {
      Serial.println("  already exists on the Flash chip");
      SerialFlashFile ff = SerialFlash.open(filename);
      if (ff && ff.size() == f.size()) {
        Serial.println("  size is the same, comparing data...");
        if (compareFiles(f, ff) == true) {
          Serial.println("  files are identical :)");
          f.close();
          ff.close();
          continue;  // advance to next file
        } else {
          Serial.println("  files are different");
        }
      } else {
        Serial.print("  size is different, ");
        Serial.print(ff.size());
        Serial.println(" bytes");
      }
      // delete the copy on the Flash chip, if different
      Serial.println("  delete file from Flash chip");
      SerialFlash.remove(filename);
    }

    // create the file on the Flash chip and copy data
    if (SerialFlash.create(filename, length)) {
      SerialFlashFile ff = SerialFlash.open(filename);
      if (ff) {
        Serial.print("  copying");
        // copy data loop
        unsigned long count = 0;
        unsigned char dotcount = 9;
        while (count < length) {
          char buf[256];
          unsigned int n;
          n = f.read(buf, 256);
          ff.write(buf, n);
          count = count + n;
          Serial.print(".");
          if (++dotcount > 100) {
             Serial.println();
             dotcount = 0;
          }
        }
        ff.close();
        if (dotcount > 0) Serial.println();
      } else {
        Serial.println("  error opening freshly created file!");
      }
    } else {
      Serial.println("  unable to create file");
    }
    f.close();
  }
  rootdir.close();
  delay(10);
  Serial.println("Finished All Files");
}


bool compareFiles(File &file, SerialFlashFile &ffile) {
  file.seek(0);
  ffile.seek(0);
  unsigned long count = file.size();
  while (count > 0) {
    char buf1[128], buf2[128];
    unsigned long n = count;
    if (n > 128) n = 128;
    file.read(buf1, n);
    ffile.read(buf2, n);
    if (memcmp(buf1, buf2, n) != 0) return false; // differ
    count = count - n;
  }
  return true;  // all data identical
}


void loop() {
}

void error(const char *message) {
  while (1) {
    Serial.println(message);
    delay(2500);
  }
}

Where I wrong?
 
You need to use the same pins for MOSI, MISO and SCK. Each chip needs a different pin for CS, but the other 3 must be common.

You can use either 11,12,13 or 8,7,14, but not both. Both devices need to connect those signals to the same 3 pins.
 
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