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quickly perform flash write during power loss

I'm using nfr52 with softdevice s132. I want quickly perform flash write during power loss. When I realize write using fs_store() I obtain time more than 5 msec. How can I use sd_flash_write() without SoftDevice event? How can I disable SoftDevice during power loss int? It needs to perform flash write in less than 5 msec.

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keith v over 9 years ago +1

Sudden power loss is sometimes handled by a interrupt tied to a circuit that detects the loss of power. The power supply is designed with enough capacitance to run the system for as long as needed to shut…