29#ifndef CC2520_ARCH_SFD_H
30#define CC2520_ARCH_SFD_H
32extern volatile uint8_t cc2520_arch_sfd_counter;
33extern volatile uint16_t cc2520_arch_sfd_start_time;
34extern volatile uint16_t cc2520_arch_sfd_end_time;
36void cc2520_arch_sfd_init(
void);