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comparison autocal/vcxomain.c @ 28:ba4b6877e227

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fc-rfcal-vcxo: afcparams computation implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 22 May 2017 23:36:14 +0000
parents 841dd03d5c85
children 4cd55371d3e4
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27:841dd03d5c85 28:ba4b6877e227
2 * This module contains the main() function for fc-rfcal-vcxo. 2 * This module contains the main() function for fc-rfcal-vcxo.
3 */ 3 */
4 4
5 #include <math.h> 5 #include <math.h>
6 #include <stdio.h> 6 #include <stdio.h>
7 #include <stdint.h>
7 #include <stdlib.h> 8 #include <stdlib.h>
8 #include <rvinterf/l1tm.h> 9 #include <rvinterf/l1tm.h>
9 #include <rvinterf/exitcodes.h> 10 #include <rvinterf/exitcodes.h>
11 #include "afcparams.h"
10 #include "stdband.h" 12 #include "stdband.h"
11 13
12 #define VCXOCAL_BAND 900 14 #define VCXOCAL_BAND 900
13 #define VCXOCAL_BAND_RFPW RFPW_STD_BAND(6, 0) 15 #define VCXOCAL_BAND_RFPW RFPW_STD_BAND(6, 0)
14 #define VCXOCAL_ARFCN 40 16 #define VCXOCAL_ARFCN 40
20 static int zero_search_dac1, zero_search_dac2, zero_search_incr; 22 static int zero_search_dac1, zero_search_dac2, zero_search_incr;
21 static float zero_search_freq1, zero_search_freq2; 23 static float zero_search_freq1, zero_search_freq2;
22 static float dac_min, dac_max, dac_init; 24 static float dac_min, dac_max, dac_init;
23 static int dac_init_int; 25 static int dac_init_int;
24 static float Psi_sta, Psi_st; 26 static float Psi_sta, Psi_st;
27
28 struct afcparams afcparams_host, afcparams_arm;
25 29
26 prepare_rf_test_system() 30 prepare_rf_test_system()
27 { 31 {
28 char cmd[80]; 32 char cmd[80];
29 33
95 99
96 /* Psi computations */ 100 /* Psi computations */
97 Psi_sta = 2.0f * (float)M_PI * lin_a / 270833.0f; 101 Psi_sta = 2.0f * (float)M_PI * lin_a / 270833.0f;
98 Psi_st = Psi_sta * 0.8f; 102 Psi_st = Psi_sta * 0.8f;
99 103
100 /* afcparams output TBD */ 104 /* compute and fill afcparams */
105 afcparams_host.psi_sta_inv = (unsigned)(1.0f / Psi_sta);
106 afcparams_host.psi_st = (unsigned)(Psi_st * 65536.0f);
107 afcparams_host.psi_st_32 = (unsigned)(Psi_st * 65536.0f * 65536.0f);
108 afcparams_host.psi_st_inv = (unsigned)(1.0f / Psi_st);
109 afcparams_host.dac_center = (int)(dac_init * 8.0f);
110 afcparams_host.dac_min = (int)(dac_min * 8.0f);
111 afcparams_host.dac_max = (int)(dac_max * 8.0f);
112 afcparams_host.snr_thr = 2560;
113
114 /* print them out */
115 printf("afcparams Psi_sta_inv: %u\n", afcparams_host.psi_sta_inv);
116 printf("afcparams Psi_st: %u\n", afcparams_host.psi_st);
117 printf("afcparams Psi_st_32: %u\n", afcparams_host.psi_st_32);
118 printf("afcparams Psi_st_inv: %u\n", afcparams_host.psi_st_inv);
119 printf("afcparams DAC_INIT*8: %d\n", afcparams_host.dac_center);
120 printf("afcparams DAC_MIN*8: %d\n", afcparams_host.dac_min);
121 printf("afcparams DAC_MAX*8: %d\n", afcparams_host.dac_max);
122 printf("afcparams snr_thr: %d\n", afcparams_host.snr_thr);
123
124 /* conversion to LE and sending to L1 remain to be implemented */
101 125
102 exit(0); 126 exit(0);
103 } 127 }