RTOS/CC2640R2F: CC2640R2 SRAM not enough space

Part Number:CC2640R2F

Tool/software: TI-RTOS

Hello, I use CC2640R2 for the electronic scale project.I'm using an IAR development environment. Currently, there is insufficient SRAM space. I see that there is 2K SRAM space in the sensor controller in the data manual.I use the M3 core of CC2640R2 how to use this 2K SRAM space.Can I define the variable M3 kernel on this 2K SRAM space?If so, how can I operate? Thank you!