Let me confirm about boot up.
There are following description in P1135 in reference manual.
After reset, the Boot ROM code determines that BT_FUSE_SEL
is blown (BT_FUSE_SEL = 1) and the ROM code performs internal boot according to the new eFUSE settings.
According to the description, after the reset since it is assumed that BT_FUSE_SEL = 1.
I know it follows OTP setting after WDT reset.
However, on the custom board, it goes to the serial downloader mode when trying WDT reset.
What should I check for it ?
Does the word "reset" in the description include WDT reset ?