[PHY] Staged modes #1414
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[PHY] Staged modes #1414
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Nice - I call this a digital-twin - saves so much time with some of the more complex ADC chips - the drivers just love to read settings, alter a few bits, put it back, do that for 8+ settings and ... yawn ... |
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Background: When switching between modes (e.g. from standby to receive) there is a significant overhead of commands that must be sent to the device to configure it. Such overhead adds timing uncertainty, because there is a not-insignificant delay between calling the appropriate method (e.g.
startReceive) and the device actually starting being able to receive packets. The issue becomes more significant at low clock/SPI speeds typically used in battery-powered devices. This causes problems especially for LoRaWAN.This PR adds support for "staged modes". This is an API of the
PhysicalLayerclass that allow to "stage" a mode to be set by callingstageModemethod, and then "launching" this mode withlaunchModethat only performs a couple of SPI transactions.Marking as draft for now since there is still some cleanup left to be done.