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#ifndef CC1K_RADIO_MSG_H
#define CC1K_RADIO_MSG_H
#include "AM.h"
typedef nx_struct CC1KHeader {
nx_am_addr_t dest;
nx_am_addr_t source;
nx_uint8_t length;
nx_am_group_t group;
nx_am_id_t type;
} cc1000_header_t;
typedef nx_struct CC1KFooter {
nxle_uint16_t crc;
} cc1000_footer_t;
typedef enum {
CC1000_ACK_BIT = 0x1,
CC1000_WHITE_BIT = 0x2,
/* 60 comes from the mica2 data sheet (MPR/MIB guide) and Dongjin Son's work in SenSys 2006.
Son's work showed that a SINR of 6dB is sufficient for > 90% PRR. Figure 7-2 of the data
sheet shows that a 6dB difference is approximately equal to a VRSSI voltage difference of
0.15V. Since the battery voltage is 2.8V (approximately), 60/1024 * 2.8 is roughly equal
to 0.15. This deserves some experimental testing. -pal */
CC1000_WHITE_BIT_THRESH = 60
} CC1KMetadataBits;
typedef nx_struct CC1KMetadata {
nx_int16_t strength_or_preamble; /* negative when used for preamble length */
nx_uint8_t metadataBits;
nx_bool timesync;
nx_uint32_t timestamp;
nx_uint8_t sendSecurityMode;
nx_uint8_t receiveSecurityMode;
} cc1000_metadata_t;
enum
{
CC1000_INVALID_TIMESTAMP = 0x80000000L,
};
#endif
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