Re: [Discuss-gnuradio] Standalone USRP2 firmware app is not transmitting

2011-04-04 Thread B. Sc. Dimitri Block
Hey list, After verifying the transmitted signal with an spectrum analyzer, it turns out to be not the expected signal. The values of the variable sample has no effect on the transmission. I tried to set the value to zero, 10, 100 or even a series of 1,0,1,0,1,0,... without any effect.

[Discuss-gnuradio] Standalone USRP2 firmware app is not transmitting

2011-04-01 Thread B. Sc. Dimitri Block
Hello list, I'm currently working on a firmware app for USRP2 which aims to send a signal in a standalone manner. I'm using the the following function. The serial interface returns, that it seems to work by outputting infinity Dones. But on the spectrum analyzer I didn't see anything, except

Re: [Discuss-gnuradio] Standalone USRP2 firmware app is not transmitting

2011-04-01 Thread B. Sc. Dimitri Block
Hey, I solved it by my own. After increasing the value of scale_i and scale_q (e.g. 2) I was able to transmit something. On 04/01/2011 01:01 PM, B. Sc. Dimitri Block wrote: Hello list, I'm currently working on a firmware app for USRP2 which aims to send a signal in a standalone

Re: [Discuss-gnuradio] Standalone USRP2

2009-02-16 Thread Eric Blossom
On Fri, Feb 13, 2009 at 10:50:54AM +0100, Yongsang Kim wrote: We want to make several standalone transmitters which transmit OFDM signals synchronized with 1pps signal and external 10MHz closk using USRP2. We want to implement the transmitters using FPGA, while daughter board parameters

[Discuss-gnuradio] Standalone USRP2

2009-02-13 Thread Yongsang Kim
We want to make several standalone transmitters which transmit OFDM signals synchronized with 1pps signal and external 10MHz closk using USRP2. We want to implement the transmitters using FPGA, while daughter board parameters and interpolation rate are fixed. We will transmit frames which

Re: [Discuss-gnuradio] Standalone usrp2 - using SD card

2009-01-13 Thread Eric Blossom
On Wed, Jan 14, 2009 at 03:36:45AM +0100, Hyuntack Lim wrote: Hi, all. I want to configure a stand-alone USRP2 transmitter (without using PC, with SD card). So, first, I used the tx_standalone.c file at usrp2/firmware/apps. Here are my questions: 1. Is using the tx_standalone.c to

Re: [Discuss-gnuradio] Standalone usrp2 - using SD card

2009-01-13 Thread Matt Ettus
Hyuntack Lim wrote: Hi, all. I want to configure a stand-alone USRP2 transmitter (without using PC, with SD card). So, first, I used the tx_standalone.c file at usrp2/firmware/apps. Here are my questions: 1. Is using the tx_standalone.c to configure a stand-alone usrp2 TX right way? 2. Now,