diff options
Diffstat (limited to 'usrp/fpga/toplevel/mrfm/mrfm.py')
| -rw-r--r-- | usrp/fpga/toplevel/mrfm/mrfm.py | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/usrp/fpga/toplevel/mrfm/mrfm.py b/usrp/fpga/toplevel/mrfm/mrfm.py deleted file mode 100644 index 100db69eb..000000000 --- a/usrp/fpga/toplevel/mrfm/mrfm.py +++ /dev/null @@ -1,129 +0,0 @@ -#!/usr/bin/env python -# -# This is mrfm_fft_sos.py -# Modification of Matt's mrfm_fft.py that reads filter coefs from file -# -# Copyright 2004,2005 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -from gnuradio import gr, gru -from gnuradio import usrp - -class source_c(usrp.source_c): - def __init__(self,fpga_filename): - usrp.source_c.__init__(self,which=0, decim_rate=64, nchan=2, mux=0x32103210, mode=0, - fpga_filename=fpga_filename) - - self._write_9862(0,2,0x80) # Bypass ADC buffer, minimum gain - self._write_9862(0,3,0x80) # Bypass ADC buffer, minimum gain - - self._write_9862(0,8,0) # TX PWR Down - self._write_9862(0,10,0) # DAC offset - self._write_9862(0,11,0) # DAC offset - self._write_9862(0,14,0x80) # gain - self._write_9862(0,16,0xff) # pga - self._write_9862(0,18,0x0c) # TX IF - self._write_9862(0,19,0x01) # TX Digital - self._write_9862(0,20,0x00) # TX Mod - - # max/min values are +/-2, so scale is set to make 2 = 32767 - - self._write_fpga_reg(69,0x0e) # debug mux - self._write_fpga_reg(5,-1) - self._write_fpga_reg(7,-1) - self._write_oe(0,0xffff, 0xffff) - self._write_oe(1,0xffff, 0xffff) - self._write_fpga_reg(14,0xf) - - self.decim = None - - def set_coeffs(self,frac_bits,b20,b10,b00,a20,a10,b21,b11,b01,a21,a11): - def make_val(address,value): - return (address << 16) | (value & 0xffff) - - # gain, scale already included in a's and b's from file - - self._write_fpga_reg(67,make_val(1,b20)) - self._write_fpga_reg(67,make_val(2,b10)) - self._write_fpga_reg(67,make_val(3,b00)) - self._write_fpga_reg(67,make_val(4,a20)) - self._write_fpga_reg(67,make_val(5,a10)) - - self._write_fpga_reg(67,make_val(7,b21)) - self._write_fpga_reg(67,make_val(8,b11)) - self._write_fpga_reg(67,make_val(9,b01)) - self._write_fpga_reg(67,make_val(10,a21)) - self._write_fpga_reg(67,make_val(11,a11)) - - self._write_fpga_reg(68,frac_bits) # Shift - - print "Biquad 0 : b2=%d b1=%d b0=%d a2=%d a1=%d" % (b20,b10,b00,a20,a10) - print "Biquad 1 : b2=%d b1=%d b0=%d a2=%d a1=%d" % (b21,b11,b01,a21,a11) - - def set_decim_rate(self,rate=None): - i=2 - turn=1 - a=1 - b=1 - while (rate>1) and (i<257): - if (rate/i) * i == rate: - if turn == 1: - if a*i<257: - a = a * i - turn = 0 - elif b*i<257: - b = b * i - turn = 0 - else: - print "Failed to set DECIMATOR" - return self.decim - elif b*i<257: - b = b * i - turn = 1 - elif a*i<257: - a = a * i - turn = 1 - else: - print "Failed to set DECIMATOR" - return self.decim - rate=rate/i - continue - i = i + 1 - if rate > 1: - print "Failed to set DECIMATOR" - return self.decim - else: - self.decim = a*b - print "a = %d b = %d" % (a,b) - self._write_fpga_reg(64,(a-1)*256+(b-1)) # Set actual decimation - - def decim_rate(self): - return self.decim - - def set_center_freq(self,freq): - self._write_fpga_reg(65,int(-freq/64e6*65536*65536)) # set center freq - - def set_compensator(self,a11,a12,a21,a22,shift): - self._write_fpga_reg(70,a11) - self._write_fpga_reg(71,a12) - self._write_fpga_reg(72,a21) - self._write_fpga_reg(73,a22) - self._write_fpga_reg(74,shift) # comp shift - |