Clayton G / Mbed 2 deprecated QRSS_Rx

QRSS Rx Network receiver. A receiver to sample a segment of RF spectrum and send this data to a server for further processing and display. NXP mbed Design Challenge entry (Honorable Mention). Published in Circuit Cellar, Feb 2012

Dependencies:   NetServices mbed DNSResolver

global.h@0:82ff15078322, 2012-01-25 (annotated)

Committer:
claytong
Date:
Wed Jan 25 20:32:53 2012 +0000
Revision:
0:82ff15078322
1.0 (initial public release)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
claytong 0:82ff15078322 1 /*---------------------------------------------------------------------------
claytong 0:82ff15078322 2
claytong 0:82ff15078322 3 QRSS Receiver Application
claytong 0:82ff15078322 4
claytong 0:82ff15078322 5 by Clayton ZL3TKA/VK1TKA
claytong 0:82ff15078322 6 clayton@isnotcrazy.com
claytong 0:82ff15078322 7
claytong 0:82ff15078322 8 Header File for global definitions
claytong 0:82ff15078322 9
claytong 0:82ff15078322 10 ---------------------------------------------------------------------------*/
claytong 0:82ff15078322 11 #ifndef _GLOBAL_H
claytong 0:82ff15078322 12 #define _GLOBAL_H
claytong 0:82ff15078322 13
claytong 0:82ff15078322 14 // Definitions
claytong 0:82ff15078322 15
claytong 0:82ff15078322 16 // Size of data buffers (in samples)
claytong 0:82ff15078322 17 #define BUFFERSYS_SIZE 512
claytong 0:82ff15078322 18
claytong 0:82ff15078322 19 // Number of buffers
claytong 0:82ff15078322 20 #define NUM_OF_BUFFERS 4
claytong 0:82ff15078322 21
claytong 0:82ff15078322 22 // Number of co-efficients in the FIR filter
claytong 0:82ff15078322 23 #define DSP_FIR_COEFFICIENTS 511
claytong 0:82ff15078322 24
claytong 0:82ff15078322 25 // ADC Clock (13.5MHz)
claytong 0:82ff15078322 26 #define ADC_CLOCK 13500000
claytong 0:82ff15078322 27
claytong 0:82ff15078322 28 // Sample Rate (35156 SPS)
claytong 0:82ff15078322 29 #define SAMPLE_RATE (ADC_CLOCK/384)
claytong 0:82ff15078322 30
claytong 0:82ff15078322 31 // Decimation amount - ratio
claytong 0:82ff15078322 32 #define DECIMATION_RATIO 64
claytong 0:82ff15078322 33
claytong 0:82ff15078322 34 // Size of LPF output per Buffer
claytong 0:82ff15078322 35 // (BUFFERSYS_SIZE/DECIMATION_RATIO)
claytong 0:82ff15078322 36 #define LPF_OUTPUTS_SIZE 8
claytong 0:82ff15078322 37
claytong 0:82ff15078322 38 // Decimation Rate (35156/64 = 549 SPS)
claytong 0:82ff15078322 39 #define DECIMATED_RATE (SAMPLE_RATE/DECIMATION_RATIO)
claytong 0:82ff15078322 40
claytong 0:82ff15078322 41 // Scale Factor rate of FIR filter result to output sample
claytong 0:82ff15078322 42 // 32 bit sample * 16 bit coefficient * 511 scaled down to 32 bits
claytong 0:82ff15078322 43 // 32+16+9 bits = 57. Reduce by 25
claytong 0:82ff15078322 44 #define FIR_SHIFT_FACTOR 25
claytong 0:82ff15078322 45
claytong 0:82ff15078322 46 // First LO in the Softrock (10.125MHz)
claytong 0:82ff15078322 47 #define FIRST_LO (ADC_CLOCK*3/4)
claytong 0:82ff15078322 48
claytong 0:82ff15078322 49 // Test NCO freq - approx 15kHz
claytong 0:82ff15078322 50 #define TEST_NCO_FREQ (15600)
claytong 0:82ff15078322 51
claytong 0:82ff15078322 52 // Size of each sample set in bytes - size of TDataSample
claytong 0:82ff15078322 53 #define SAMPLE_SET_SIZE (8)
claytong 0:82ff15078322 54
claytong 0:82ff15078322 55 // QRSS System UDP Port
claytong 0:82ff15078322 56 #define QRSS_UDP_PORT 6595
claytong 0:82ff15078322 57
claytong 0:82ff15078322 58 // comments
claytong 0:82ff15078322 59
claytong 0:82ff15078322 60 // Macros
claytong 0:82ff15078322 61
claytong 0:82ff15078322 62 #endif
claytong 0:82ff15078322 63
claytong 0:82ff15078322 64 //---------------------------------------------------------------------------
claytong 0:82ff15078322 65 // END
claytong 0:82ff15078322 66 //---------------------------------------------------------------------------
claytong 0:82ff15078322 67