All,
I'm trying to get LittleFS working with a Teensy 4.0 and a 25F040 with no luck. I'm using Arduino IDE 1.8.13 and Teensyduino 1.57
My chip is:
https://www.digikey.com/en/products/...40I-SN/5844622
I realize there are very specific memory chips that can be used, maybe this chip is incompatible.
wiring
Chip Teenys pin
CE 10
SO/SIO 12 (tried 11 as well)
WP no connection
Vss GND
SI/SIO 11 (tried 12 as well)
SCK 13
HOLD no connection
VDD 3v3.
Im running the Little FS example only changing the CS pin to pin 10
I can't get the chip to be recognized. Error is:
C:\Users\ADMINI~1\AppData\Local\Temp\arduino_modif ied_sketch_438428\LittleFS_SPI_Simple_Datalogger.i no Oct 2 2022 16:49:22
Initializing LittleFS ... Error starting SPI FLASH
Any help greatly appreciated.
Code:/* LittleFS datalogger This example shows how to log data from three analog sensors to an storage device such as a FLASH. This example code is in the public domain. */ #include <LittleFS.h> // LittleFS supports creating file systems (FS) in multiple memory types. Depending on the // memory type you want to use you would uncomment one of the following constructors LittleFS_SPIFlash myfs; // Used to create FS on SPI NOR flash chips such as the W25Q16JV*IQ/W25Q16FV, // for the full list of supported NOR flash see // https://github.com/PaulStoffregen/LittleFS#nor-flash //LittleFS_SPINAND myfs; // Used to create FS on SPI NAND flash chips on a SPI port // such as SPI, SPI1, SPI2 etc. For the full list of supported // NAND Flash chips see https://github.com/PaulStoffregen/LittleFS#nand-flash //LittleFS_SPIFram myfs; // Used to create FS on FRAM memory chips such as the FM25V10-G. // For the full list of supported chips see https://github.com/PaulStoffregen/LittleFS#fram //Chip select pin for SPI lash chips such as the W25N01G. For the full list of supported NAND flash see // https://github.com/PaulStoffregen/LittleFS#nand-flash. // The chipSelect pin can be any digital pin. However, if using the Teensy Audio shield chipSelect is pin 6. const int chipSelect = 10; File dataFile; // Specifes that dataFile is of File type int record_count = 0; bool write_data = false; void setup() { // Open serial communications and wait for port to open: Serial.begin(115200); while (!Serial) { // wait for serial port to connect. } Serial.println("\n" __FILE__ " " __DATE__ " " __TIME__); Serial.print("Initializing LittleFS ... "); delay(100); // see if the Flash is present and can be initialized: // Note: SPI is default so if you are using SPI and not SPI for instance // you can just specify myfs.begin(chipSelect). if (!myfs.begin(chipSelect)) { Serial.printf("Error starting %s\n", "SPI FLASH"); while (1) { // Error, so don't do anything more - stay stuck here } } Serial.println("LittleFS initialized."); menu(); } void loop() { if ( Serial.available() ) { char rr; rr = Serial.read(); switch (rr) { case 'l': listFiles(); break; case 'e': eraseFiles(); break; case 's': { Serial.println("\nLogging Data!!!"); write_data = true; // sets flag to continue to write data until new command is received // opens a file or creates a file if not present, FILE_WRITE will append data to // to the file created. dataFile = myfs.open("datalog.txt", FILE_WRITE); logData(); } break; case 'x': stopLogging(); break; case 'd': dumpLog(); break; case '\r': case '\n': case 'h': menu(); break; } while (Serial.read() != -1) ; // remove rest of characters. } if(write_data) logData(); } void logData() { // make a string for assembling the data to log: String dataString = ""; // read three sensors and append to the string: for (int analogPin = 0; analogPin < 3; analogPin++) { int sensor = analogRead(analogPin); dataString += String(sensor); if (analogPin < 2) { dataString += ","; } } // if the file is available, write to it: if (dataFile) { dataFile.println(dataString); // print to the serial port too: Serial.println(dataString); record_count += 1; } else { // if the file isn't open, pop up an error: Serial.println("error opening datalog.txt"); } delay(100); // run at a reasonable not-too-fast speed for testing } void stopLogging() { Serial.println("\nStopped Logging Data!!!"); write_data = false; // Closes the data file. dataFile.close(); Serial.printf("Records written = %d\n", record_count); } void dumpLog() { Serial.println("\nDumping Log!!!"); // open the file. dataFile = myfs.open("datalog.txt"); // if the file is available, write to it: if (dataFile) { while (dataFile.available()) { Serial.write(dataFile.read()); } dataFile.close(); } // if the file isn't open, pop up an error: else { Serial.println("error opening datalog.txt"); } } void menu() { Serial.println(); Serial.println("Menu Options:"); Serial.println("\tl - List files on disk"); Serial.println("\te - Erase files on disk"); Serial.println("\ts - Start Logging data (Restarting logger will append records to existing log)"); Serial.println("\tx - Stop Logging data"); Serial.println("\td - Dump Log"); Serial.println("\th - Menu"); Serial.println(); } void listFiles() { Serial.print("\n Space Used = "); Serial.println(myfs.usedSize()); Serial.print("Filesystem Size = "); Serial.println(myfs.totalSize()); printDirectory(myfs); } void eraseFiles() { myfs.quickFormat(); // performs a quick format of the created di Serial.println("\nFiles erased !"); } void printDirectory(FS &fs) { Serial.println("Directory\n---------"); printDirectory(fs.open("/"), 0); Serial.println(); } void printDirectory(File dir, int numSpaces) { while(true) { File entry = dir.openNextFile(); if (! entry) { //Serial.println("** no more files **"); break; } printSpaces(numSpaces); Serial.print(entry.name()); if (entry.isDirectory()) { Serial.println("/"); printDirectory(entry, numSpaces+2); } else { // files have sizes, directories do not printSpaces(36 - numSpaces - strlen(entry.name())); Serial.print(" "); Serial.println(entry.size(), DEC); } entry.close(); } } void printSpaces(int num) { for (int i=0; i < num; i++) { Serial.print(" "); } }
Reply With Quote
Originally Posted by KrisKasprzak
