- Name:
- enablebod
- Syntax:
-
ENABLEBOD
- Description:
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Enable the on-chip brown out detect function.
Some PICAXE chips have a programmable internal brown out detect function, to automatically cleanly reset the chip on a power brown out (temporary voltage drop below the minimum operating voltage). The brown out detect is always enabled by default when a program runs.
However it is sometimes beneficial to disable this function to reduce current drain in battery powered applications whilst the chip is 'sleeping'. However you must still ensure that the operating voltage does not drop below the minimum operating voltage or else unreliable behaviour may occur.
The brownout voltage is fixed for each device as follows:
1.8V 28X2-3V, 40X2-3V 1.9V 20X2, 14M2, 18M2, 20M2, 28X2, 40X2 2.1V 08, 08M, 14M, 20M, 28X1, 40X1 2.4V 08M2 3.2V 28X2-5V, 40X2-5V None 18, 18A, 18M, 18X, 28A, 28X, 40X
- Applies To:
- All (except 08, 18, 18A, 18M, 18X, 28, 28A, 28X, 40X)
- See Also:
- Related Create:
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- Print:
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Enabling brown out detection
This program will disable the brown out detection for 23 seconds then re-enable it.
- Code Example:
-
main: disablebod ; disable brown out sleep 10 ; sleep for 23 seconds (10x2.3) enablebod ; enable brown out goto main ; loop back to start
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