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Although the SPI Relay driver is RC2014-specific, the SD Card driver is generic enough to be a subsystem. That's the second subsystem we add and this warrants, I think, the formalization of a new concept: protocols.
11 lines
492 B
Plaintext
11 lines
492 B
Plaintext
( -- )
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( The opposite of sdcWaitResp: we wait until response is 0xff.
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After a successful read or write operation, the card will be
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busy for a while. We need to give it time before interacting
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with it again. Technically, we could continue processing on
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our side while the card it busy, and maybe we will one day,
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but at the moment, I'm having random write errors if I don't
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do this right after a write, so I prefer to stay cautious
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for now. )
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: _ready BEGIN _idle 0xff = UNTIL ;
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