From 605483a2cf38eecdd39222622b9eab93f8061186 Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Fri, 20 Aug 2010 10:04:02 -0700
Subject: uhd: tx waveform change how error is measured
---
host/examples/tx_waveforms.cpp | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'host/examples')
diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp
index 22975da96..b9b24f516 100644
--- a/host/examples/tx_waveforms.cpp
+++ b/host/examples/tx_waveforms.cpp
@@ -34,7 +34,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
//variables to be set by po
std::string args, wave_type;
size_t total_duration, mspb;
- double rate, freq, wave_freq;
+ double rate, freq, wave_freq, aepb;
float ampl, gain;
//setup the program options
@@ -44,6 +44,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
("args", po::value<std::string>(&args)->default_value(""), "simple uhd device address args")
("duration", po::value<size_t>(&total_duration)->default_value(3), "number of seconds to transmit")
("mspb", po::value<size_t>(&mspb)->default_value(10000), "mimimum samples per buffer")
+ ("aepb", po::value<double>(&aepb)->default_value(1e-5), "allowed error per buffer")
("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of outgoing samples")
("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
("ampl", po::value<float>(&l)->default_value(float(0.3)), "amplitude of the waveform")
@@ -103,7 +104,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
while (true){
double num_samps_per_buff = periods_per_buff*samps_per_period;
double sample_error = num_samps_per_buff - boost::math::round(num_samps_per_buff);
- if (std::abs(sample_error/num_samps_per_buff) < 1e-5) break;
+ if (std::abs(sample_error) <= aepb) break;
periods_per_buff++;
}
--
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