diff options
| author | matt | 2008-01-30 22:46:24 +0000 |
|---|---|---|
| committer | matt | 2008-01-30 22:46:24 +0000 |
| commit | 6d62ce192da9e86bd8bdd3be4e6a6893ac68ac6e (patch) | |
| tree | e69c92fff51fd5530cd35b797114563890113f3c /gr-usrp/src/db_xcvr2450.py | |
| parent | c2c1ba21350d588adb4ec8f2f815f50df81927f8 (diff) | |
| download | gnuradio-6d62ce192da9e86bd8bdd3be4e6a6893ac68ac6e.tar.gz gnuradio-6d62ce192da9e86bd8bdd3be4e6a6893ac68ac6e.tar.bz2 gnuradio-6d62ce192da9e86bd8bdd3be4e6a6893ac68ac6e.zip | |
minor refclk and pll changes
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7530 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gr-usrp/src/db_xcvr2450.py')
| -rw-r--r-- | gr-usrp/src/db_xcvr2450.py | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gr-usrp/src/db_xcvr2450.py b/gr-usrp/src/db_xcvr2450.py index daf4007f2..a1590276d 100644 --- a/gr-usrp/src/db_xcvr2450.py +++ b/gr-usrp/src/db_xcvr2450.py @@ -101,7 +101,7 @@ class xcvr2450(object): self.frac_div = 0 # 0 = min, 65535 = max self.highband = 0 # 0 = freq <= 5.4e9, 1 = freq > 5.4e9 self.five_gig = 0 # 0 = freq <= 3.e9, 1 = freq > 3e9 - self.cp_current = 0 # 0 = 2mA, 1 = 4mA + self.cp_current = 1 # 0 = 2mA, 1 = 4mA self.ref_div = 4 # 1 to 7 self.rssi_hbw = 0 # 0 = 2 MHz, 1 = 6 MHz self.txlpf_bw = 1 # 1 = 12 MHz, 2 = 18 MHz, 3 = 24 MHz @@ -363,11 +363,11 @@ class xcvr2450(object): def set_freq(self, target_freq): if target_freq > 3e9: self.five_gig = 1 - self.ref_div = 3 + self.ref_div = 2 scaler = 4.0/5.0 else: self.five_gig = 0 - self.ref_div = 4 + self.ref_div = 2 scaler = 4.0/3.0; if target_freq > 5.4e9: @@ -376,7 +376,8 @@ class xcvr2450(object): self.highband = 0 vco_freq = target_freq*scaler; - ref_clk = self.u.fpga_master_clock_freq() # Assumes AD9515 is bypassed + #ref_clk = self.u.fpga_master_clock_freq() # Assumes AD9515 is bypassed + ref_clk = 32e6 # AD9515 set up as div by 2 phdet_freq = ref_clk/self.ref_div div = vco_freq/phdet_freq self.int_div = int(math.floor(div)) |