[Discuss-gnuradio] rssi questions

2007-08-07 Thread Zhuocheng Yang
Hi guys: I noticed that in the adc_interface, there are registers called rssi_0, rssi_1, rssi_2, and rssi_3. All of which are 32 bits. However, according to the header format: http://gnuradio.org/trac/browser/gnuradio/trunk/usrp/doc/inband-signaling-usb The rssi should be 6 bits. Do I just use

[Discuss-gnuradio] start/end of burst issues

2007-08-03 Thread Zhuocheng Yang
Hi guys: Here is the problem. If I receive a packet whose timestamp is out of date, I trash the packet. If there are packets afterwards that is a continuation of the first packet, I should trash those as well despite the fact that their timestamp indicates now. (They belong to the same high

[Discuss-gnuradio] testbench problem

2007-08-02 Thread Zhuocheng Yang
Hi Everyone: This is a follow up of yesterday's start/end of burst issues. I have created a testbench to test my code. See attachment for details(only 4 files). when simulating the code, the datain register in the file test_chan_fifo_reader.v is set to be the wrong value. In Ln 88 of

[Discuss-gnuradio] clock

2007-07-19 Thread Zhuocheng Yang
Hello: Does anyone know the clock speed of master_clk, serial_clk and tx_clk? Which one is fastest and which one is slowest? Leo ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] register io

2007-07-17 Thread Zhuocheng Yang
So I took a look at serial_io.v. I understand the idea now, you just shift in the serial_addr first and then shift in the serial_data if you want to write. Upon read, the highest bit of serial_addr should be set to one. In usrp_inband_usb.v, inputs to serial_io.v is set to be inputs of the

[Discuss-gnuradio] different registers

2007-07-17 Thread Zhuocheng Yang
Hi: In the spec. for command packets, there are several different kind of writes. (register write, SPI write, I2C write). I noticed that master_control has a few registers, serial_io has a few registers connected to it. Which one is one? What registers are SPI, I2C or just registers? Leo

[Discuss-gnuradio] setting registers

2007-07-16 Thread Zhuocheng Yang
Hi guys: My name is Zhuocheng Yang, you can call me Leo. I am pretty new to gnuradio, started working on it a month ago. Since Thibaud has gone back to Switzerland, I will be taking over his work. I am currently trying to process the control packets, but I am not sure how I can read/write