SK-AM62: How to read files using FreeRTOS?

Tool/software:

I want to write files on FreeRTOS.

Question 1: What should I do to write files on FreeRTOS? Should I add to default_sbl_ospi_nand_hs_fs.cfg?
--file=C:/test.awb --operation=flash --flash-offset=0x1500000

Additionally, I want to read the files written on FreeRTOS in my program. 
Question 2: What should I do to read the files flashed on FreeRTOS? It would be helpful if you could provide an example of the implementation.

Question 3: Is syscfg configuration necessary for handling files?
If syscfg configuration is required, please let me know what settings are needed.

Explanation of what I want to do:
I am implementing a program for audio processing using AudioWeaver. To run it standalone, I want to write a binary file named test.awb on FreeRTOS and read it during program execution.

Steps to be executed in the program:

1. Write test.awb on FreeRTOS [Question 1]
2. Boot
3. Read test.awb file [Question 2]
4. Initialize McASP
5. Notification from McASP callback
6. Import callback from McASP to AudioWeaver
7. Export processed audio from AudioWeaver
8. Input exported audio to McASP
9. Pump to run AudioWeaver processing
10. Repeat steps 5-9

Prerequisite: I am familiar with the sample code for audio input/output using McASP. Sample code: mcasp_playback_codec_aic31_am62x-sk_a53ss0-0_freertos_gcc-aarch64