topic BOD is disabled and power below 1.8v in LPC Microcontrollers

BOD is disabled and power below 1.8v

zerrcol — Tue, 24 Jan 2017 07:11:34 GMT

I have lpc 1778 controller, And I am using all it's peripherals, like I have sensors connected to each peripheral bus, So no Peripheral is free on controller.

I wanted to know , that I have disabled the BOD (brown out detect )interrupt and also masked other software interrupts (software), I got sudden power down in system , as my system went below 1.8 v of operating voltage.
So at this moment, Yes my controller will go power off, but I wanted to know, Will it sudden goes in power down and stops working, or it will go down step-by-step by taking couple of second before actual stop working.

Does any external interrupt triggers at this time except watchdog?

Thanks for help.

Re: BOD is disabled and power below 1.8v

soledad — Wed, 01 Feb 2017 00:14:56 GMT

Hi,

If the supply voltage is below a certain threshold the device stops working without delays. When the supply voltage is below the threshold, none of the interrupts will be enabled. And any polling function won't perform anything if the voltage is below the threshold. The interrupts and other functions will be properly functioning only after the voltage is above threshold.

Have a great day,

Sol

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