List only *.csv files

okay I have tired to simplify the code if I comment out the //if (plFile.open(file_list, O_CREAT|O_WRITE)); the code works :slight_smile:

but when I add it back in with the if (plFile.open(file_list, O_CREAT|O_WRITE)); or even with out plFile.open(file_list, O_CREAT|O_WRITE);

it completes but skips the openNext command, I am using IDE 1.0.3 and the lastest SDFAT library

#include <SdFat.h>
#include <SdFile.h>

// SD chip select pin
const uint8_t chipSelect = SS;

// file system object
SdFat sd;
SdFile file;
SdFile	plFile;		// Playlist file
	SdFile	lFile;		//list files
      	uint16_t count;		// count of files
        int  FNAME_SIZE;
        char  fname[200];
        char  file_list[] = "FILELIST.TXT";
        char *CSV_EXT = "CSV"; 


// define a serial output stream
ArduinoOutStream cout(Serial);
//------------------------------------------------------------------------------
void setup() {
  Serial.begin(9600);
      
if (!sd.begin(chipSelect, SPI_HALF_SPEED)) sd.initErrorHalt();
 //if (plFile.open(file_list, O_CREAT|O_WRITE));
 
 count = 0;
 while (file.openNext(sd.vwd(), O_READ))
	{
  Serial.println("Started");
    	if (file.isFile())
		{ file.getFilename(fname);
		if (strcmp(CSV_EXT, &fname[strlen(fname)-strlen(CSV_EXT)]) == 0){
                Serial.print(fname);			
  	       plFile.write(fname, 100);
				count++;
			}
		}
		file.close();
	
}
plFile.close();
Serial.println("count");
Serial.print(count); 
}

void loop() {}