Re ad_gpio() help

Hello,

I am working on a program that continuously reads pins io_rx[0-15] on
the
basic_rx board (I am using USRP N210). I am able to read the pins using
the
read_gpio() function, but after a couple seconds I get the following
error.

RuntimeError: RuntimeError: fifo ctrl timed out looking for acks

My program looks like this:

#!/usr/bin/env python

from gnuradio import uhd # addded uhd

import struct
import sys

/////////////////////////////////////////////////////////////////////////////

main

/////////////////////////////////////////////////////////////////////////////

def main():
global flag, p, v

flag = True

v = uhd.usrp_source(' ' , uhd.stream_args('fc32'))

while flag:
    p = v.get_dboard_iface().read_gpio(114)
    print(p)

if name == ‘main’:
try:
main()
except KeyboardInterrupt:
pass

I would greatly appreciate any advise that anyone can give me. Thank you
for
your time and help.

Sam

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