Upload firmware to STM32 ARM Microcontroller with stm32flash and USB to UART debug cable #shorts

Goodnight. I am from Brazil. I need help. I installed the Gotek SFRM72-FU-DL on the Yamaha PSR620 Keyboard, and it is not working correctly, I created 10 virtual disks on the pendrive, using the Floppy Manege software, Gotek only recognizes disk 000, it does not read the other created disks. I need to know if I have to put the FF.CFG and img.CFG files in the root of my pendrive?