Does the current USRP2 FPGA/firmware release allow for a PPS interrupt
handler? I’ve tried adding these lines to the txrx.c firmware app:
putstr(“Got to PPS handler at time:”);
pic_regs->pending = PIC_PPS_INT;
/* inside main() */
putstr("\nRegistered pps interrupt handler\n");
Sending a pulse into the PPS SMA port doesn’t trigger the handler.
Based on fragments I found in the mailing lists,
I also tried including these lines inside main():
clocks_mimo_config(MC_WE_LOCK_TO_SMA); timesync_regs->tick_control |= TSC_TRIGGER_EVERYPPS;
but that changed nothing. Am I doing something wrong, or is this
Thanks for any help!