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124da6adec
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.
16 lines
432 B
Plaintext
16 lines
432 B
Plaintext
( cmd arg1 arg2 -- r )
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( Send a command that expects a R1 response, handling CS. )
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: SDCMDR1 (spie) _cmd (spid) ;
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( cmd arg1 arg2 -- r arg1 arg2 )
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( Send a command that expects a R7 response, handling CS. A R7
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is a R1 followed by 4 bytes. arg1 contains bytes 0:1, arg2
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has 2:3 )
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: SDCMDR7
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(spie)
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_cmd ( r )
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_idle 8 LSHIFT _idle + ( r arg1 )
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_idle 8 LSHIFT _idle + ( r arg1 arg2 )
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(spid)
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;
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