import time
# for bitstream = /tmp/test_syncgen4_2016_Feb_12_1758.fpg
from casperfpga.katcp_fpga import KatcpFpga
from casperfpga.memory import bin2fp, fp2fixed_int
hostname = 'roach020818'
f = KatcpFpga(hostname)
f.get_system_information()
f.registers.bf_config.write(tvg_sel=1)
def convert_to_freq(num, beamweight=1.0):
"""
Convert the 100-bit number from the snapshot to the frequency channel
of that data point.
This is assuming that the data is in the pol1 position and the beamweight
being applied is beamweight.
:param num: the 100-bit number to be converted
:param beamweight: the f16.9 beamweight being applied to the data
:return:
"""
# a = num & ((2**50)-1)
# a = num >> 50
p1r = None
p1i = None
p1r8 = None
txaddr = DIG_TX_IP_START
txaddr_bits = txaddr.split('.')
txaddr_base = int(txaddr_bits[3])
txaddr_prefix = '%s.%s.%s.' % (txaddr_bits[0], txaddr_bits[1], txaddr_bits[2])
for ctr in range(0, 4):
txip = txaddr_base + ctr
print '%s sending to: %s%d port %d' % (fdig.host, txaddr_prefix, txip, DIG_TX_PORT)
fdig.write_int('gbe_iptx%i' % ctr, tengbe.str2ip('%s%d' % (txaddr_prefix, txip)))
fdig.write_int('gbe_porttx', DIG_TX_PORT)
fdig.registers.control.write(gbe_rst=False)
# enable the tvg on the digitiser and set up the pol id bits
fdig.registers.control.write(tvg_select0=1)
fdig.registers.control.write(tvg_select1=1)
fdig.registers.id2.write(pol1_id=1)
else:
fdig.get_system_information()
if args.deprogram:
fdig.deprogram()
print 'Deprogrammed %s.' % fdig.host
if args.stop:
fdig.registers.control.write(gbe_txen=False)
print 'Stopped transmission on %s.' % fdig.host
if args.start:
# start tx
print 'Starting TX on %s' % fdig.host,
sys.stdout.flush()
fdig.registers.control.write(gbe_txen=True)
print 'done.'
from casperfpga.katcp_fpga import KatcpFpga
parser = argparse.ArgumentParser(description='Display reorder preprocess snapblock info.',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument(dest='host', type=str, action='store',
help='x-engine host')
parser.add_argument('--eof', dest='eof', action='store_true',
default=False,
help='show only eofs')
args = parser.parse_args()
xeng_host = args.host
# create the device and connect to it
xeng_fpga = KatcpFpga(xeng_host)
xeng_fpga.get_system_information()
board_id = xeng_fpga.registers.board_id.read()['data']['reg']
numchans = 4096
numx = 32
fperx = numchans / numx
frange = []
for bid in range(board_id, board_id + 4):
fmin = bid * fperx
fmax = fmin + fperx - 1
frange.append((fmin, fmax))
print(frange
snapdata = []
snapdata.append(xeng_fpga.snapshots.snap_unpack0_ss.read()['data'])
snapdata.append(xeng_fpga.snapshots.snap_unpack1_ss.read()['data'])
snapdata.append(xeng_fpga.snapshots.snap_unpack2_ss.read()['data'])
snapdata.append(xeng_fpga.snapshots.snap_unpack3_ss.read()['data'])
