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Xinyuan-LilyGO / LilyGo-T-PCIE

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how to set Default voltage for AXP192! #30

Open khoa21214475 opened 11 months ago

khoa21214475 commented 11 months ago

AXP192 Datasheet v1.13_cn.pdf In section 9.6 of this datasheet (9.6 默认电压/启动时序的设置(Default Voltage/Timing Setting)), how can I set Default voltage, this doccument say "For this part, please refer to the "Default Configuration Instructions" document", so I don't know where can I find it.

Please help me! I want to set DCDC1 to 3.3V and DCDC3 to 3.3V when AXP192 startup!

lewisxhe commented 11 months ago

The default configuration is chip customization function and cannot be rewritten

khoa21214475 commented 10 months ago

This means that only the manufacturer can configure the chip for the first time, right, I bought 100 chips but can't use it.

lewisxhe commented 10 months ago

Yes . This is the factory default of the chip and cannot be changed.

khoa21214475 commented 10 months ago

What about chip AXP2101? DCDC1 when first start up is definitely 3.3VDC according to the AXP2101 datasheet, right?

Thank you very much! AXP2101.pdf

khoa21214475 commented 10 months ago

Please help me!