- Last Active
Sir, In fact what i did and trying to do is this: 1- I have andrew source code as every one 2- i build the whole circuit of andrew, and it works very well with me, i receive signal from sats, and get my position. 3- i want to use gp2015 instead of a…
Sir, In fact what i did and trying to do is this:1- I have andrew source code as every one2- i build the whole circuit of andrew, and it works very well with me, i receive signal from sats, and get my position.3- i want to use gp2015 instead of andr…
Sir, I have test 5.691 and 4.309. But also SNR<15
No. i mean look up table for sin ,cos function [1,1,0,0]. then 4*FC/Fs?
Sir. in search.cpp i found that lookup table does not repeat periodically. it should be something like 0,1,2,3.0,1,2,3.....etc, but in my case it is random. does that affect my design?
Hi, Sir. I have done what you adviced me to do and i got 0x1234 Ok both on asm and verilog, but i still get snr<15???!
i have tried this, but nothing happen ,snr always <15
Yes Sir I pass it through Hard-limiting (1-bit ADC) "LMH7220" as in Andrew aholme(http://www.aholme.co.uk/GPS/Main.htm) , so i have 1-bit signal with 4.309MHz output. i want to pass it to fpga. i did that but it stuck in search.cpp,
Sir i want to use if output (4.309Mhz) on pin 1 of gp2015 not mag or sig (pin 14,pin 15) so i do not need 40/7 clock
I have gp2015 rf front end, and i need to use it instead of SE4150, its out putif is 4.309MHz, when i use it with andrew aholme . no thing appear on the screen. what should i do? what is wrong. i know the only thing have to change is Fc=2.6e6, beco…