Thread Border Router

[PCRiscV]

I am trying to implement the Thread Border Router (https://docs.espressif.com/projects/esp ... d_run.html)

When I run my code, this is the output I get from my esp32s3 chip:

I (4978) RCP_UPDATE: RCP: using update sequence 0
I (4978) OPENTHREAD: spinel UART interface initialization completed
I (4978) main_task: Returned from app_main()
W(6988) OPENTHREAD:[W] Platform------: Wait for response timeout
I (7008) esp_ot_br: RCP firmware not found in storage, will reboot to try next image
I (7018) wifi:state: run -> init (0)
I (7018) wifi:pm stop, total sleep time: lu us / lu us

I (7018) wifi:<ba-del>idx:0, tid:6
I (7018) wifi<9,0>, old:<9,0>, ap:<255,255>, sta:<9,0>, prof:1
I (7018) wifi:flush txq
I (7018) wifi:stop sw txq
I (7018) wifi:lmac stop hw txq
I (7018) wifi:Deinit lldesc rx mblock:10

Why is the rcp firmware not found. Did I miss a config in menuconfig?

Thanks