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annotate ad9912.c @ 197:79db2c87d1b0

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New build. Do not install configuration file.
author Daniele Nicolodi <daniele.nicolodi@obspm.fr>
date Mon, 31 Mar 2014 17:03:37 +0200
parents 87dae6d62a61
children f8118b90490e
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196
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1 #ifdef _CVI_
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2 #include <ansi_c.h>
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3 #include <toolbox.h>
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4 #include <tcpsupp.h>
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5 #define TIMEOUT 0
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6 #define send(fd, buf, len, f) ClientTCPWrite(fd, buf, len, TIMEOUT)
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7 #define recv(fd, buf, len, f) ClientTCPRead(fd, buf, len, TIMEOUT)
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8 #define usleep(t) Delay(t / 1000000.0)
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9 #define strdup(s) StrDup(s)
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10 #else
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11 #include <stdio.h>
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12 #include <stdlib.h>
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13 #include <unistd.h>
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14 #include <errno.h>
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15 #include <string.h>
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16 #include <sys/types.h>
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17 #include <sys/socket.h>
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18 #include <netinet/in.h>
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19 #include <arpa/inet.h>
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20 #include <netdb.h>
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21 #include <ctype.h>
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22 #include <math.h>
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23 #include <stdarg.h>
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24 #endif
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25
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26 #include "ad9912.h"
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27
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28 #define streq(x, y) (strcmp((x), (y)) == 0)
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29
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30 typedef unsigned long long uint64;
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31
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32
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33 static inline uint64 ftw(double clock, double freq)
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34 {
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35 uint64 ftw = freq * ((double)(1 << 48) / clock);
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36 ftw = ftw & ~1ULL;
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37 return ftw;
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38 }
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39
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40
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41 static inline double freq(double clock, uint64 ftw)
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42 {
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43 double freq = (double)ftw * (clock / (double)(1ULL << 48));
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44 return freq;
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45 }
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46
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47
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48 static inline int strtouint64(const char *str, uint64 *v)
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49 {
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50 char *end;
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51 *v = strtoull(str, &end, 0);
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52 if (*end != '\0')
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53 return -1;
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54 return 0;
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55 }
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56
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57
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58 static int msend(int fd, char *buffer, int n)
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59 {
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60 int r;
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61
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62 buffer[n++] = '\r';
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63 buffer[n++] = '\n';
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64
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65 r = send(fd, buffer, n, 0);
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66 if (r < 0)
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67 return r;
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68
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69 return 0;
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70 }
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71
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72
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73 static int mrecv(int fd, char *buffer, int len)
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74 {
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75 int n;
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76
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77 n = recv(fd, buffer, len, 0);
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78 if (n < 0)
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79 return n;
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80
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81 if ((buffer[--n] != '\n') || (buffer[--n] != '\r'))
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82 return -1;
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83
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84 buffer[n] = '\0';
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85
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86 return n;
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87 }
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88
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89
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90 static int command(int fd, char *frmt, ...)
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91 {
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92 int r, n;
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93 char buffer[1024];
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94 va_list v;
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95
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96 va_start(v, frmt);
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97 n = vsnprintf(buffer, sizeof(buffer) - 2, frmt, v);
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98 va_end(v);
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99
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100 r = msend(fd, buffer, n);
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101 if (r < 0)
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102 return r;
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103
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104 r = mrecv(fd, buffer, sizeof(buffer));
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105 if (r < 0)
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106 return r;
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107
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108 if (! streq(buffer, "OK"))
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109 return -1;
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110
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111 return 0;
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112 }
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113
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114
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115 int ad9912_init(struct ad9912 *d, const char *hostname, double clock)
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116 {
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117 int n, r;
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118 char buffer[256];
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119
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120 d->hostname = StrDup(hostname);
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121 d->port = 1234;
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122 d->clock = clock;
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123
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124 #ifdef _CVI_
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125 unsigned int sock;
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126 r = ConnectToTCPServer(&sock, d->port, d->hostname, NULL, NULL, TIMEOUT);
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127 if (r < 0)
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128 return -1;
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129 #else
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130 int sock;
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131 struct sockaddr_in addr;
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132 struct hostent* host;
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133
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134 host = gethostbyname(hostname);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
135 if (host == NULL)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
136 return -1;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
137
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
138 sock = socket(AF_INET, SOCK_STREAM, 0);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
139 if (sock < 0)
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
140 return -2;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
141
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
142 addr.sin_family = host->h_addrtype;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
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143 memcpy(&addr.sin_addr.s_addr, host->h_addr_list[0], host->h_length);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
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144 addr.sin_port = htons(port);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
145
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
146 r = connect(sock, (struct sockaddr*)&addr, sizeof(addr));
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
147 if (r < 0)
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
148 return -3;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
149 #endif
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
150
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
151 d->fd = sock;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
152
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
153 /* check compatibility */
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
154 n = snprintf(buffer, sizeof(buffer), "REVISION");
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
155 r = msend(d->fd, buffer, n);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
156 if (r < 0)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
157 return r;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
158 r = mrecv(d->fd, buffer, sizeof(buffer));
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
159 if (r < 0)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
160 return r;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
161 if (atoi(buffer) != REVISION)
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
162 return -1;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
163
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
164 return 0;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
165 }
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
166
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
167
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
168 int ad9912_set_frequency(struct ad9912 *d, unsigned channel, double f)
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
169 {
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
170 int r;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
171 uint64 value = ftw(d->clock, f);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
172
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
173 r = command(d->fd, "SET CH%d:FTW0 0x%llX", channel, f);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
174 if (r < 0)
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
175 return r;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
176
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
177 d->frequency[channel] = freq(d->clock, value);
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
178
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
179 return 0;
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
180 }
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
181
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
182
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
183 int ad9912_get_frequency(struct ad9912 *d, unsigned channel, double *f)
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
184 {
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
185 int r, n;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
186 uint64 value;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
187 char buffer[256];
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
188
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
189 n = snprintf(buffer, sizeof(buffer), "GET CH%d:FTW0", channel);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
190
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
191 r = msend(d->fd, buffer, n);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
192 if (r < 0)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
193 return r;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
194
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
195 r = mrecv(d->fd, buffer, sizeof(buffer));
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
196 if (r < 0)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
197 return r;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
198
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
199 r = strtouint64(buffer, &value);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
200 if (r < 0)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
201 return r;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
202
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
203 d->frequency[channel] = freq(d->clock, value);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
204 if (f)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
205 *f = d->frequency[channel];
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
206
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
207 return 0;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
208 }
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
209
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
210
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
211 /**
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Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
212 * Ramp DDS frequency from @f1 to @f2 in steps @fstep with 0.01
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
213 * seconds delay after each step.
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
214 */
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
215 int ad9912_ramp_frequency2(struct ad9912 *d, unsigned channel, double f1, double f2, double fstep)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
216 {
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
217 const int delay = 10000;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
218
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
219 /* f2 > f1 */
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
220 while ((f2 - f1) > fstep) {
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
221 f1 += fstep;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
222 ad9912_set_frequency(d, channel, f1);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
223 usleep(delay);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
224 }
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
225
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
226 /* f2 < f1 */
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
227 while ((f1 - f2) > fstep) {
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
228 f1 -= fstep;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
229 ad9912_set_frequency(d, channel, f1);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
230 usleep(delay);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
231 }
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
232
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
233 /* final adjustment */
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
234 ad9912_set_frequency(d, channel, f2);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
235 return 0;
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
236 }
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
237
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
238
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
239 int ad9912_ramp_frequency(struct ad9912 *d, unsigned channel, double f, double fstep)
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
240 {
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
241 return ad9912_ramp_frequency2(d, channel, d->frequency[channel], f, fstep);
87dae6d62a61 New AD9912 client code to communicate with improved server code
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
parents:
diff changeset
242 }