Hi,
In <i.MX Hardware Design Guide and Board Bring up> page31, it says Power on sequencing: VDD_SNVS_IN<=VDD_HIGH_IN<=any other power supply, but in <SPF-27516.pdf> page 19, MMPF0100F power on sequencing doesn't meet the requirement. VDD_HIGH_IN is the 11th. Does it matter? And if VDD_SNVS_IN is not the first power on, will the board not bring up?
Wenjie
Hi Wenjie
recommended to follow power-up sequence defined in Datasheet for
each processor, as it is most last to date and frequently updated document.
SPF-27516 was designed on early processor development and may have inaccuracies.
Yes sequence VDD_SNVS_IN<=VDD_HIGH_IN .. is important for successful boot.
Best regards
igor
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