23 lines
452 B
C
23 lines
452 B
C
#include <AT91SAM7S64.h>
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#include <net/uip.h>
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#include <dev/cc2420.h>
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#include <sam7s-spi.h>
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#define SPI_SPEED 1000000 /* 1MHz clock*/
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#define SPI_DLYBCT 1
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#define SPI_DLYBS 20
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#ifndef BV
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#define BV(b) (1<<(b))
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#endif
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void
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__cc2420_arch_init(void)
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{
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spi_init();
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AT91C_SPI_CSR[CC2420_DEFAULT_DEV] =
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((SPI_DLYBCT<<24) | (SPI_DLYBS<<16) | (((MCK+SPI_SPEED/2)/SPI_SPEED)<<8)
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| AT91C_SPI_NCPHA | AT91C_SPI_BITS_8 | AT91C_SPI_CSAAT);
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}
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