<p>today in normal microcontrollers (imxrt1052):<br />- no internal flash, requires an external (Q)SPI chip. both NOR and NAND are supported<br />- if you put a SOIC clip onto the chip it stops booting<br />- if you erase the flash it stops being accessible to a debugger<br />- if you assert SYSRESETREQ it stops talking to the debugger for long enough that everything times out. presumably it is looking in the flash for whether debugging is allowed or whatever</p><p>why is it like this ;w;</p>