Mercurial > hg > fxanalyse
view ad9956.c @ 220:28a4ff70fe48
Rework beatnote sign determination. Fix Sign3 measurement
author | Daniele Nicolodi <daniele.nicolodi@obspm.fr> |
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date | Thu, 18 Sep 2014 18:01:38 +0200 |
parents | fcc988c6f841 |
children | 5296f3bcd160 |
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#ifdef _CVI_ #include <winsock2.h> #include <ansi_c.h> #include <toolbox.h> #else #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <string.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <netdb.h> #include <ctype.h> #include <stdarg.h> #endif #include "dds.h" #include "ad9956.h" int ad9956_init(struct ad9956 *d, const char *hostname, double clock) { int sock, n, r; char buffer[256]; struct sockaddr_in addr; struct hostent* host; uint64 value; #ifdef _CVI_ WSADATA wsdata; WSAStartup(MAKEWORD(2,2), &wsdata); #endif d->hostname = strdup(hostname); d->port = 1234; d->profile = 0; d->clock = clock; host = gethostbyname(hostname); if (host == NULL) return -1; sock = socket(AF_INET, SOCK_STREAM, 0); if (sock < 0) return -2; addr.sin_family = host->h_addrtype; memcpy(&addr.sin_addr.s_addr, host->h_addr_list[0], host->h_length); addr.sin_port = htons(d->port); r = connect(sock, (struct sockaddr*)&addr, sizeof(addr)); if (r < 0) return -3; d->fd = sock; /* check compatibility */ n = snprintf(buffer, sizeof(buffer), "REVISION"); r = msend(d->fd, buffer, n); if (r < 0) return r; r = mrecv(d->fd, buffer, sizeof(buffer)); if (r < 0) return r; if (atoi(buffer) != REVISION) return -EINVAL; /* disable clock divider */ n = snprintf(buffer, sizeof(buffer), "GET CFR2"); r = msend(d->fd, buffer, n); if (r < 0) return r; r = mrecv(d->fd, buffer, sizeof(buffer)); if (r < 0) return r; r = strtouint64(buffer, &value); if (r < 0) return r; value = value | (1ULL << 16); r = command(d->fd, "SET CFR2 0x%X", value); if (r < 0) return r; return 0; } int ad9956_set_frequency(struct ad9956 *d, double f) { int r; uint64 value = ftw(d->clock, f); r = command(d->fd, "SET PCR%d 0x%llX", d->profile, value); if (r < 0) return r; d->frequency = freq(d->clock, value); return 0; } int ad9956_get_frequency(struct ad9956 *d, double *f) { int r, n; uint64 value; char buffer[256]; n = snprintf(buffer, sizeof(buffer), "GET PCR%d", d->profile); r = msend(d->fd, buffer, n); if (r < 0) return r; r = mrecv(d->fd, buffer, sizeof(buffer)); if (r < 0) return r; r = strtouint64(buffer, &value); if (r < 0) return r; d->frequency = freq(d->clock, value); if (f) *f = d->frequency; return 0; } int ad9956_set_sweep_rate(struct ad9956 *d, double rate) { int64 value = (int64)ftw(d->clock, fabs(rate * 0.01)); if (rate < 0.0) value = -value; return command(d->fd, "SWEEP SET DFTW %lld", value); } int ad9956_sweep_start(struct ad9956 *d) { return command(d->fd, "SWEEP START"); } int ad9956_sweep_stop(struct ad9956 *d) { return command(d->fd, "SWEEP STOP"); }