[Discuss-gnuradio] The Temic tuner (Microtune 4937) datasheet ?
Hi, all I just got the USRP and TXRX board and successfully installed and run the WBFM program to listen to some local radio station. Now I am trying to figure out the USRP hardware beginning from the RF section. But I found that the link about Microtune 49xx series (http://www.microtune.com/products/49xx_Series.html) in the HowtoFM section (http://comsec.com/wiki?HowToFM) is no longer valid. Does anyone have the datasheet? Owen Wu ASMedia ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Questions about USRP TV RX agc setting
Title: Questions about USRP TV RX agc setting Hi, all When I traced the tv_rx.py code, I found that in order to adjust the RF AGC/IF AGC the AUX DAC inside the AD9862 must be used. But I had several questions about this. 1). the AUX DAC bit width: in the code segment below, there is a magic number 4096 (2e12), but the bit width of AUX DAC is only 8 bits width(2e8=256).What is the relationship between the 8-bit and 4096? 2). the gain/voltage formula: Are there two formula approximation from the tuner datasheet ? 3). TV RX daughterboard In the schematics, it is necessary to have two signals: AUX_DAC_A, and io_rx_00 to control the IF AGC setting. What is the use of io_rx_00 signal? # Gain setting def _set_rfagc(self,gain): assert gain <= 60 and gain >= 0 if gain == 60: voltage = 4 else: voltage = gain/60.0 * 2.25 + 1.25 dacword = int(4096*voltage/1.22/3.3) # 1.22 = opamp gain assert dacword>=0 and dacword<4096 self.rfagc = dacword self._u.write_aux_dac(self._which, 1, dacword) def _set_ifagc(self,gain): assert gain <= 35 and gain >= 0 if gain == 35: voltage = 3.5 else: voltage = gain/35.0 * 2.1 + 1.4 dacword = int(4096*voltage/1.22/3.3) # 1.22 = opamp gain assert dacword>=0 and dacword<4096 self.rfagc = dacword self._u.write_aux_dac(self._which, 0, dacword) Owen Wu ASMedia ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] FW: Questions about USRP TV RX agc setting
Hi, all When I traced the tv_rx.py code, I found that in order to adjust the RF AGC/IF AGC the AUX DAC inside the AD9862 must be used. But I had several questions about this. 1). the AUX DAC bit width: in the code segment below, there is a magic number 4096 (2e12), but the bit width of AUX DAC is only 8 bits width(2e8=256).What is the relationship between the 8-bit and 4096? 2). the gain/voltage formula: Are there two formula approximation from the tuner datasheet ? 3). TV RX daughterboard In the schematics, it is necessary to have two signals: AUX_DAC_A, and io_rx_00 to control the IF AGC setting. What is the use of io_rx_00 signal? # Gain setting def _set_rfagc(self,gain): assert gain <= 60 and gain >= 0 if gain == 60: voltage = 4 else: voltage = gain/60.0 * 2.25 + 1.25 dacword = int(4096*voltage/1.22/3.3)# 1.22 = opamp gain assert dacword>=0 and dacword<4096 self.rfagc = dacword self._u.write_aux_dac(self._which, 1, dacword) def _set_ifagc(self,gain): assert gain <= 35 and gain >= 0 if gain == 35: voltage = 3.5 else: voltage = gain/35.0 * 2.1 + 1.4 dacword = int(4096*voltage/1.22/3.3)# 1.22 = opamp gain assert dacword>=0 and dacword<4096 self.rfagc = dacword self._u.write_aux_dac(self._which, 0, dacword) Owen Wu ASMedia ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] TVRX data interface to USRP board (VINN_A, VINP_A; VINN_B, VINP_B)
Hi, all This may be a simple question but I can not find any definite answer from the archive. In the module interface, there are two RF data differential pairs from RF board to the USRP board: VINN_A, VINP_A; VINN_B, VINP_B. If there are two individual RF tuners on the RX board, I think they each use one different pair, like the picture below for basic RX board. http://www-personal.engin.umich.edu/~anastas/gnuradio/usrp_gen.eps But how about the TVRX board? From what I see from the python code, only one ADC is used. Is one of the differential pairs left open or both of them connect from the same RF tuner output? If the answer is 2), under what condition would this be used (I/Q sampling) for this tuner? Owen Wu ASMedia ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] TX_RX board installation problem (0x000c)?
Hi, all I just got my 2 new TV_RX boards from Ettus, but when I installed it and run the tvrx_wfm_rcv_gui.py script, the script tells me that it is an unknown board with ID 0x000c. The release of gnuradio software version is close to 2.5 (I did CVS it from the ftp site), but still far away from the 2.6 version. Any clue? I thought about updating the gnuradio from 2.5 to 2.6, but I want to know what happened before I tried anything dramatic. Owen Wu ASMedia ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
RE: [Discuss-gnuradio] TX_RX board installation problem (0x000c)?
Hi, Matt Since I intend to use the TV RX tuner both with USRP board and some of the in-house boards (the Altera one is a little limited to my project hence I change that to Xilinx Virtex-2 and make a in-house board), can I have the new TV RX 2 tuner datasheet (3x8769?) ? Owen -Original Message- From: Matt Ettus [mailto:[EMAIL PROTECTED] Sent: Saturday, January 07, 2006 2:00 AM To: HL Wu(吳曉龍) Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] TX_RX board installation problem (0x000c)? [EMAIL PROTECTED] wrote: > Hi, all > I just got my 2 new TV_RX boards from Ettus, but when I installed it > and > run the tvrx_wfm_rcv_gui.py script, the script tells me that it is an unknown > board with ID 0x000c. The release of gnuradio software version is close to 2.5 > (I did CVS it from the ftp site), but still far away from the 2.6 version. > Any clue? > I thought about updating the gnuradio from 2.5 to 2.6, but I want to know what > happened before I tried anything dramatic. You need to update to the new release to get support for your board. The tuners shipping on the TVRX board are slightly different now, so I gave them a new daughterboard ID. It will show up as a TVRX2 once you update. Matt ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
RE: [Discuss-gnuradio] TX_RX board installation problem (0x000c)?
If the IF frequency is 43.75Mhz instead of 5.75Mhz, it is impossible that AD9862 can be faster enough to do Nyquist sampling (64MSPs for AD9862). If that is so, how can AD9862 sample the intended signal ? using bandpass sampling? Matt, can you explain it a little bit more ? Owen -Original Message- From: Matt Ettus [mailto:[EMAIL PROTECTED] Sent: Monday, January 09, 2006 12:25 PM To: HL Wu(吳曉龍) Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] TX_RX board installation problem (0x000c)? [EMAIL PROTECTED] wrote: > Hi, Matt >Since I intend to use the TV RX tuner both with USRP board and > some of > the in-house boards (the Altera one is a little limited to my project hence > I change that to Xilinx Virtex-2 and make a in-house board), can I have the > new > TV RX 2 tuner datasheet (3x8769?) ? Unfortunately I don't think Microtune ever made one. The only difference of consequence is the 43.75 MHz IF frequency instead of 5.75 MHz. Matt ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Capture and replay (usrp_rx_cfile.py)
Hi, all Is there any script which is capable to replay the captured file generated by the usrp_rx_cfile.py? It is better if I can choose either the basic TX board (baseband only) or the USRP TVRX board (RF upconversion). I dare not to try to cook my own script because it seems that interpolator portion is done inside the ADI 9862 chip and I am unsure how to programm it correctly. An rough example would be very helpful! Owen Wu ASMedia ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] wxPython in Cygwin issue
Hi, all I am trying to build wxPython (2.6.3.3) on Cygwin. I just wonder if it is necessary to use configuration option --with-opengl for the GNURadio. BTW, if someone successfully build wxPython on Cygwin and could share his experience, that would be great (In the Gnuradio Cygwin Wiki, wxPython is still listed as the not-tried item). Owen Wu ASMedia ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
RE: [Discuss-gnuradio] wxPython in Cygwin issue
Johnathan: After choosing not to use opengl, I successfully build the wxWidgets under Cygwin (I think in the wx world, this is called wxGTK+), but I can't build wxPython under Cygwin. I just begin to wonder if I take the wrong approach: because I also posted the below message to the wx-dev mailing list and it looked nobody did this successfully before. Johnathan, would you mind trying to recall how you achieved this one year ago? Owen Appendix: Messgae to the wx-dev mailing list 1). Related package version: WINDOWS: Window 2000 SVR4 OS: CYGWIN_NT-5.0 Hl_Wu_pc 1.5.21(0.156/4/2) 2006-07-30 14:21 i686 Cygwin Compiler: gcc (GCC) 3.4.4 (cygming special) (gdc 0.12, using dmd 0.125) GTK+: 2.6.10 Python: 2.4.3 wxPython: wxPython-src-2.6.3.3 SWIG Version 1.3.29 2). Tweak about wxWidget compile Since the Python package didn't link the libraray /usr/lib/python2.4/config/libpython2.4.dll.a to the library /usr/lib/libpython2.4.a, the compile process for wxWidget would encounter link error. After fixing this, the wxWidget compilation is ok. 3). error message about wxPython compilation python setup.py build Found wx-config: /cygdrive/c/Home/HL_Wu/gr/bin/wx-config Using flags: --toolkit=gtk2 --unicode=no --version=2.6 Preparing CORE... Preparing STC... Preparing GIZMOS... Preparing ANIMATE... running build running build_py copying wx/__version__.py -> build-gtk2/lib.cygwin-1.5.21-i686-2.4/wx copying wx/build/build_options.py -> build-gtk2/lib.cygwin-1.5.21-i686-2.4/wx/build copying wx/build/config.py -> build-gtk2/lib.cygwin-1.5.21-i686-2.4/wx/build running build_ext building '_core_' extension c++ -shared -Wl,--enable-auto-image-base build-gtk2/temp.cygwin-1.5.21-i686-2.4/src/helpers.o build-gtk2/temp.cygwin-1.5.21-i686-2.4/src/gtk/_core_wrap.o -L/usr/X11R6/lib -L/cygdrive/c/Home/HL_Wu/gr/lib -L. -lwx_gtk2d_xrc-2.6 -lwx_gtk2d_html-2.6 -lwx_gtk2d_adv-2.6 -lwx_gtk2d_core-2.6 -lwx_based_xml-2.6 -lwx_based_net-2.6 -lwx_based-2.6 -lpython2.4 -o build-gtk2/lib.cygwin-1.5.21-i686-2.4/wx/_core_.dll build-gtk2/temp.cygwin-1.5.21-i686-2.4/src/helpers.o: In function `_Z16wxPyGetWinHandleP8wxWindow': /cygdrive/d/Asmedia/FM/USRP/installation/kd7lmo/package/wxPython-src-2.6.3.3/wxPython/src/helpers.cpp:1931: undefined reference to `_g_type_check_instance_cast' /cygdrive/d/Asmedia/FM/USRP/installation/kd7lmo/package/wxPython-src-2.6.3.3/wxPython/src/helpers.cpp:1931: undefined reference to `_gdk_x11_drawable_get_xid' /cygdrive/d/Asmedia/FM/USRP/installation/kd7lmo/package/wxPython-src-2.6.3.3/wxPython/src/helpers.cpp:1931: undefined reference to `_gdk_x11_drawable_get_xid' collect2: ld returned 1 exit status error: command 'c++' failed with exit status 1 -Original Message- From: Johnathan Corgan [mailto:[EMAIL PROTECTED] Sent: Saturday, August 12, 2006 12:37 PM To: HL Wu(吳曉龍) Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] wxPython in Cygwin issue [EMAIL PROTECTED] wrote: >I am trying to build wxPython (2.6.3.3) on Cygwin. I just wonder > if it is necessary to use configuration option --with-opengl for the > GNURadio. BTW, if someone successfully build wxPython on Cygwin > and could share his experience, that would be great (In the Gnuradio > Cygwin Wiki, wxPython is still listed as the not-tried item). Sorry for the delay in responding to your email. I successfully built wxPython on Cygwin about a year ago. I don't recall *having* to use --with-opengl for it to work, though I think there are some wxPython features that get disabled if you don't. (I think it's the wxGlCanvas stuff or whatever it's called.) -Johnathan ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
