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author | Leo C | 2014-12-04 03:21:36 +0100 |
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committer | Leo C | 2014-12-04 03:21:36 +0100 |
commit | a870134af740aa65f57aa7edeb2f566a749d06a0 (patch) | |
tree | ccf0a10977bf08131387dfe56beac423caed6152 /include/spi.h | |
parent | 6204987c3539b71856b4456f218511530af12c6f (diff) | |
download | z180-stamp-a870134af740aa65f57aa7edeb2f566a749d06a0.zip |
Card detect over cs pin. (initial)
Diffstat (limited to 'include/spi.h')
-rw-r--r-- | include/spi.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/spi.h b/include/spi.h index 04ea726..6358f62 100644 --- a/include/spi.h +++ b/include/spi.h @@ -27,10 +27,11 @@ #define SPI_SET_SPEED_F_128 do {SPCR = (1<<SPE) | (1<<MSTR) | (1<<SPR1) | (1<<SPR0); SPSR = (0<<SPI2X); } while(0) /** switch to fast SPI Clock */ -#define SPISetFastClock() SPI_SET_SPEED_F_2 -#define SPISetSlowClock() SPI_SET_SPEED_F_8 -#define SPISetMMCInitClock() SPI_SET_SPEED_F_64 +#define SPISetFastClock() SPI_SET_SPEED_F_2 +#define SPISetSlowClock() SPI_SET_SPEED_F_8 +#define SPISetMMCInitClock() SPI_SET_SPEED_F_64 +#define SPI_OFF() do { SPCR = 0; } while(0) static inline void spi_wait() { loop_until_bit_is_set(SPSR,SPIF); |