RAM function

[giacominconsulting]

Hello,

Do you know why in the file spi_interface.c (STM32 Middleware Open Bootloader MCU ) some functions are placed in the RAM ?
For example:
#if defined (ICCARM)
__ramfunc void OPENBL_SPI_SendByte(uint8_t Byte)
#else
attribute((section(".ramfunc"))) void OPENBL_SPI_SendByte(uint8_t Byte)
#endif /* (ICCARM) */

Thank you for your help.
Regards,
Marco