--- a/ad9956.c	Mon Mar 31 17:03:43 2014 +0200
+++ b/ad9956.c	Mon Apr 14 12:43:25 2014 +0200
@@ -26,7 +26,8 @@
 	int sock, n, r;
 	char buffer[256];
 	struct sockaddr_in addr;
-	struct hostent* host;	
+	struct hostent* host;
+	uint64 value;
 
 #ifdef _CVI_
 	WSADATA wsdata;
@@ -67,6 +68,22 @@
 	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;
 }
 
@@ -116,36 +133,20 @@
 
 int ad9956_set_sweep_rate(struct ad9956 *d, double rate)
 {
-	int r;
-	uint64 value = ftw(d->clock, rate);
-	
-	r = command(d->fd, "SWEEP SET DFTW %lld", d->profile, value);
-	if (r < 0)
-		return r;
-
-	return 0;
+	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)
 {
-	int r;
-
-	r = command(d->fd, "SWEEP START");
-	if (r < 0)
-		return r;
-
-	return 0;
+	return command(d->fd, "SWEEP START");
 }
 
 
 int ad9956_sweep_stop(struct ad9956 *d)
 {
-	int r;
-
-	r = command(d->fd, "SWEEP STOP");
-	if (r < 0)
-		return r;
-
-	return 0;
+	return command(d->fd, "SWEEP STOP");
 }