It seems that in the provided code example the ov flag is set when the result of a SUB instruction is negative or am I wrong?

/* compare with low_thr; wake up if value < low_thr */
move r3, low_thr
ld r3, r3, 0
sub r3, r0, r3
jump wake_up, ov

https://github.com/espressif/esp-idf/blob/v5.4.1 ...

tcpip_adapter_dhcpc_stop(TCPIP_ADAPTER_IF_STA) returns ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS for me.

I guess it works on some versions.
So is there a way to set a static ip?