AT Command

Description

AT+CFSRFILE command is used to read data from a file in the Simcom modules.


Support

Simcom Module Tutorial

Examples

KeywordsAT+CFSRFILE syntax, examples, parameters, error, input, response.

Try the below script in the AT Command Tester tool

//Script: at+cfsrfile
//The AT commands in this script are applicable for Simcom modules only
//Check SIMCOM Module AT Command documentaiton

//Get the support for the commands
AT+CFSRFILE=?

//Wait
WAIT=1

//Get the txt file size
AT+CFSGFIS=0,"myfile.txt"


//Read file
//1st parameter - index > 0 -/custapp/ 1-/fota/ 2-/datatx/ 3 -/customer/
//2nd parameter - FILE NAME
//3RD parameter - Mode 0 -> overwrite 1->read at position
//4th parameter - File size
//5th parameter - position
//6th parameter - len_filename
AT+CFSRFILE=0,"myfile.txt",0,22,0


Output of the above script in the AT Command Tester tool

AT+CFSRFILE=?

+CFSRFILE: (0-3),50,(0-1),(1-10240),(0-filesize)

OK
AT+CFSGFIS=0,"myfile.txt"

+CFSGFIS: 22

OK
AT+CFSRFILE=0,"myfile.txt",0,22,0

+CFSRFILE: 22
my file dataadd at end

OK