Hi :
I would like to check a scenario in the RM for device ( s32k1 ) boot.
25.3.3 Boot sequence
So if a slow rise time happened (probably caused by a big value of pull-up resistor on reset line).
what is the device behavior? (does it still hang until the RESET_B rise to high? any possible that device stuck on a very big rise time?)
Best regards
Ives CHENG
Solved! Go to Solution.
Hi @IvesCHENG,
Either way, whether the pin is held low actively by another device or the voltage on the pin is slowly raising while the capacitance on the line is being charged, as long as the reset_b voltage stays below 0.7 * VDD (DS, Table 18, V_IH), the MCU detects reset_b LOW and it stays in system reset.
Regards,
Daniel
Hi @IvesCHENG,
Either way, whether the pin is held low actively by another device or the voltage on the pin is slowly raising while the capacitance on the line is being charged, as long as the reset_b voltage stays below 0.7 * VDD (DS, Table 18, V_IH), the MCU detects reset_b LOW and it stays in system reset.
Regards,
Daniel