Rev 2: Platform abstraction, CRPA LED heartbeat & MSPI support #23
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jynik wants to merge 4 commits intoBastilleResearch:masterfrom
Open
Rev 2: Platform abstraction, CRPA LED heartbeat & MSPI support #23jynik wants to merge 4 commits intoBastilleResearch:masterfrom
jynik wants to merge 4 commits intoBastilleResearch:masterfrom
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…support
A simple platform abstraction interface has been introduced in platform.h.
This is intended to decouple the details of platform-specific IO assignments
(e.g. LED pins, LNA enable, SPI chip select) from other portions of the
code.
Three platforms variants are available:
- CrazyRadio PA via `make CRPA=y`. Provides LED heartbeat and debug LED.
- CrazyRadio PA modified for Master SPI support via `make CRPA_MSPI=y`
- Generic platform with no external IO and P0DIR set to all inputs.
Built when a `make` invocation does not specify one of the above.
IMPORTANT: Do not run the CRPA_MSPI firmware on an unmodified platform!
This firmware requires that U2 is depopulated and that the
pads for U2 pins 2 and 4 are jumpered together. This allows
CSN to be used as an output connected to P2, pin 10.
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This is rev 2 of this patch set. MSPI fixes have been squashed into the commit introducing MSPI support.
The proposed changes include the following:
make CRPA=yormake CRPA_MSPI=yis now required to target the Crazyradio PA (and use the RXEN for the LNA.makebuilds a "generic" firmware that leaves P0 as inputs.