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comparison autocal/txbasis.c @ 101:b0618796d28d

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fc-rfcal-txband: added safety checks for NaN power measurements and out-of-tolerance final Tx power levels
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 11 Aug 2017 03:20:43 +0000
parents 83b24a1dfd4a
children 7ad0495991ed
comparison
equal deleted inserted replaced
100:7ad5836d3b87 101:b0618796d28d
1 /* 1 /*
2 * The basis steps of Tx power level calibration are implemented here. 2 * The basis steps of Tx power level calibration are implemented here.
3 */ 3 */
4 4
5 #include <math.h>
5 #include <stdio.h> 6 #include <stdio.h>
6 #include <stdlib.h> 7 #include <stdlib.h>
7 #include <rvinterf/l1tm.h> 8 #include <rvinterf/l1tm.h>
8 #include <rvinterf/exitcodes.h> 9 #include <rvinterf/exitcodes.h>
9 #include "txband.h" 10 #include "txband.h"
17 18
18 txcal_basis_run() 19 txcal_basis_run()
19 { 20 {
20 unsigned n; 21 unsigned n;
21 double meas; 22 double meas;
23 int nanflag = 0;
22 24
23 printf("Performing the calibration basis run\n"); 25 printf("Performing the calibration basis run\n");
24 do_txpw(TX_PWR_LEVEL, txcal_band->start_plnum); 26 do_txpw(TX_PWR_LEVEL, txcal_band->start_plnum);
25 printf("Starting RF Tx on the DUT\n"); 27 printf("Starting RF Tx on the DUT\n");
26 do_rfe(RX_TX_TCH); 28 do_rfe(RX_TX_TCH);
28 for (n = 0; n < num_basis_points; n++) { 30 for (n = 0; n < num_basis_points; n++) {
29 do_txpw(TX_APC_DAC, tx_basis[n].apc); 31 do_txpw(TX_APC_DAC, tx_basis[n].apc);
30 usleep(20000); 32 usleep(20000);
31 meas = tx_power_meas(); 33 meas = tx_power_meas();
32 printf("APC DAC=%u: %.2f dBm\n", tx_basis[n].apc, meas); 34 printf("APC DAC=%u: %.2f dBm\n", tx_basis[n].apc, meas);
35 if (isnan(meas))
36 nanflag = 1;
33 tx_basis[n].vout = dbm_to_vout(meas); 37 tx_basis[n].vout = dbm_to_vout(meas);
34 } 38 }
35 39
36 printf("Stopping RF Tx on the DUT\n"); 40 printf("Stopping RF Tx on the DUT\n");
37 do_rfe(STOP_ALL); 41 do_rfe(STOP_ALL);
42 if (nanflag) {
43 printf("Error: got NaN power measurement, aborting\n");
44 exit(ERROR_TARGET);
45 }
38 return(0); 46 return(0);
39 } 47 }
40 48
41 txcal_basis_compute() 49 txcal_basis_compute()
42 { 50 {
45 for (n = 0; n < num_basis_points - 1; n++) { 53 for (n = 0; n < num_basis_points - 1; n++) {
46 if (tx_basis[n+1].vout <= tx_basis[n].vout) { 54 if (tx_basis[n+1].vout <= tx_basis[n].vout) {
47 fprintf(stderr, 55 fprintf(stderr,
48 "error: Vout at APC=%u is not greater than at APC=%u\n", 56 "error: Vout at APC=%u is not greater than at APC=%u\n",
49 tx_basis[n+1].apc, tx_basis[n].apc); 57 tx_basis[n+1].apc, tx_basis[n].apc);
50 exit(ERROR_RFTEST); 58 exit(ERROR_TARGET);
51 } 59 }
52 tx_basis[n].slope = (tx_basis[n+1].vout - tx_basis[n].vout) / 60 tx_basis[n].slope = (tx_basis[n+1].vout - tx_basis[n].vout) /
53 (tx_basis[n+1].apc - tx_basis[n].apc); 61 (tx_basis[n+1].apc - tx_basis[n].apc);
54 } 62 }
55 return(0); 63 return(0);