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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
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ee22af7a
编写于
1月 19, 2021
作者:
M
manjaro
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2 changed file
with
287 addition
and
2 deletion
+287
-2
uhd_cpp/uhd_io_cpp.cpp
uhd_cpp/uhd_io_cpp.cpp
+4
-2
uhd_cpp/uhd_io_save.cpp
uhd_cpp/uhd_io_save.cpp
+283
-0
未找到文件。
uhd_cpp/uhd_io_cpp.cpp
浏览文件 @
ee22af7a
...
@@ -17,6 +17,7 @@
...
@@ -17,6 +17,7 @@
#include <iostream>
#include <iostream>
#include <thread>
#include <thread>
#include <vector>
#include <vector>
#include <atomic>
using
uhd
::
tune_request_t
;
using
uhd
::
tune_request_t
;
using
uhd
::
tx_streamer
;
using
uhd
::
tx_streamer
;
using
uhd
::
usrp
::
multi_usrp
;
using
uhd
::
usrp
::
multi_usrp
;
...
@@ -28,7 +29,8 @@ using std::string;
...
@@ -28,7 +29,8 @@ using std::string;
using
std
::
vector
;
using
std
::
vector
;
using
std
::
shared_ptr
;
using
std
::
shared_ptr
;
static
bool
stop_signal_called
=
false
;
static
std
::
atomic
<
bool
>
stop_signal_called
(
false
);
void
sigint_handler
(
int
code
){
void
sigint_handler
(
int
code
){
(
void
)
code
;
(
void
)
code
;
stop_signal_called
=
true
;
stop_signal_called
=
true
;
...
@@ -82,7 +84,7 @@ void do_io(
...
@@ -82,7 +84,7 @@ void do_io(
vec_buffersz
.
push_back
(
0
);
vec_buffersz
.
push_back
(
0
);
}
}
//收发计数
//收发计数
long
long
rx_count
=
0
,
tx_count
=
0
;
std
::
atomic
<
long
long
>
rx_count
(
0
),
tx_count
(
0
)
;
//接收线程
//接收线程
auto
thcall_rx
=
[
&
]()
->
void
{
auto
thcall_rx
=
[
&
]()
->
void
{
uhd
::
rx_metadata_t
md_rx
;
uhd
::
rx_metadata_t
md_rx
;
...
...
uhd_cpp/uhd_io_save.cpp
0 → 100644
浏览文件 @
ee22af7a
/*
* Copyright 2015 Ettus Research LLC
* Copyright 2018 Ettus Research, a National Instruments Company
*
* SPDX-License-Identifier: GPL-3.0-or-later
* 丁劲犇修改 2021
*/
#include <uhd/types/tune_request.hpp>
#include <uhd/usrp/multi_usrp.hpp>
#include <uhd/utils/safe_main.hpp>
#include <uhd/utils/thread.hpp>
#include <chrono>
#include <complex>
#include <csignal>
#include <fstream>
#include <iostream>
#include <thread>
#include <vector>
#include <atomic>
using
uhd
::
tune_request_t
;
using
uhd
::
tx_streamer
;
using
uhd
::
usrp
::
multi_usrp
;
using
uhd
::
rx_streamer
;
using
std
::
thread
;
using
std
::
cerr
;
using
std
::
endl
;
using
std
::
string
;
using
std
::
vector
;
using
std
::
shared_ptr
;
static
std
::
atomic
<
bool
>
stop_signal_called
(
false
);
void
sigint_handler
(
int
code
){
(
void
)
code
;
stop_signal_called
=
true
;
}
/*!
* \brief The tag_channelOptions struct
* 通道配置参数
*/
struct
tag_channelOptions
{
string
type
=
"sc16"
;
//样点类型,为上位机上类型: fc64, fc32, or sc16
string
subdev
=
""
;
//通道,A:A, A:B两个通道,对应B210左侧、右侧接口.一般默认配置,用信道号channels选取接口。
string
ant
=
"TX/RX"
;
//天线选取,B210 有 TX/RX 或者 RX2两个
string
wirefmt
=
"sc16"
;
//内部类型 (sc8 or sc16),是片上处理的类型
vector
<
size_t
>
channels
{
0
};
//通道号,可以设置0,1之类的。默认subdev时,0=A:A,1=A:B,subdev被修改,则采取修改后的编号
size_t
spb
=
20000
;
//缓冲大小,太小会丢包,太大会超时
double
rate
=
50e6
;
//采样率,单位Hz
double
freq
=
1.0e9
;
//射频频率,单位Hz
double
gain
=
55
;
//射频增益,单位dB
double
bw
=
56e6
;
//滤波带宽,默认为采样窗口
double
lo_offset
=
0
;
//LO偏移,单位 Hz (缺省)
bool
int_n_mod
=
false
;
//int-n 模式(本例不配置)
bool
docheck
=
true
;
//在开始前执行检查
double
setup_time
=
1.0
;
//rx配置检查时间,可选。
};
//通道检查函数
bool
check_rx_status
(
const
string
&
ref
,
multi_usrp
::
sptr
usrp
,
const
tag_channelOptions
&
op
);
/*!
* 范例落盘函数,使用环形队列保持跟随收发
*/
template
<
class
FMT
=
short
>
void
do_save
(
const
tag_channelOptions
&
oprx
,
rx_streamer
::
sptr
rx
)
{
if
(
oprx
.
channels
.
size
()
>
1
)
{
cerr
<<
"multi channels IO is not suitable for this simple demo."
<<
endl
;
return
;
}
//初始化队列
vector
<
shared_ptr
<
FMT
>
>
vec_buffer
;
vector
<
int
>
vec_buffersz
;
const
int
bufsz
=
65536
;
for
(
int
i
=
0
;
i
<
bufsz
;
++
i
)
{
vec_buffer
.
push_back
(
shared_ptr
<
FMT
>
(
new
FMT
[
oprx
.
spb
*
2
]));
vec_buffersz
.
push_back
(
0
);
}
//收发计数
std
::
atomic
<
long
long
>
rx_count
(
0
),
tx_count
(
0
);
//接收线程
auto
thcall_rx
=
[
&
]()
->
void
{
uhd
::
rx_metadata_t
md_rx
;
uhd
::
stream_cmd_t
stream_cmd
(
uhd
::
stream_cmd_t
::
STREAM_MODE_START_CONTINUOUS
);
stream_cmd
.
num_samps
=
size_t
(
oprx
.
spb
);
stream_cmd
.
stream_now
=
true
;
stream_cmd
.
time_spec
=
uhd
::
time_spec_t
();
rx
->
issue_stream_cmd
(
stream_cmd
);
while
(
!
stop_signal_called
)
{
vec_buffersz
[
rx_count
%
bufsz
]
=
rx
->
recv
((
void
*
)(
vec_buffer
[
rx_count
%
bufsz
].
get
()),
oprx
.
spb
,
md_rx
,
0.1
,
false
);
//md_rx可以读取时戳
//auto tm_first = md_rx.time_spec;
++
rx_count
;
if
(
md_rx
.
error_code
==
uhd
::
rx_metadata_t
::
ERROR_CODE_TIMEOUT
)
fputs
(
"Time out."
,
stderr
);
else
if
(
md_rx
.
error_code
==
uhd
::
rx_metadata_t
::
ERROR_CODE_OVERFLOW
)
{
fputs
(
"Over flow"
,
stderr
);
stop_signal_called
=
true
;
}
else
if
(
md_rx
.
error_code
!=
uhd
::
rx_metadata_t
::
ERROR_CODE_NONE
)
{
cerr
<<
"Receiver error: "
<<
md_rx
.
strerror
()
<<
endl
;
stop_signal_called
=
true
;
}
}
};
//存储线程
auto
th_save
=
[
&
]()
->
void
{
FILE
*
fp
=
fopen
(
"/run/media/user/SYSTEM/56Msps_IQ_F2450MHz.pcm"
,
"wb"
);
while
(
!
stop_signal_called
)
{
//等待一会数据,以便TX可以保持跟随。也可以不设置,这样开始时会争夺。
if
(
tx_count
+
10
>=
rx_count
)
continue
;
if
(
tx_count
+
65500
<=
rx_count
)
stop_signal_called
=
true
;
//fwrite((void *)(vec_buffer[tx_count % bufsz].get()),sizeof(FMT)*2,vec_buffersz[tx_count % bufsz],fp);
++
tx_count
;
}
fclose
(
fp
);
};
//启动线程
thread
rx_thread
(
thcall_rx
);
thread
tx_thread
(
th_save
);
cerr
<<
"Press ^C to Stop."
<<
endl
;
//主线程不断打印状态
while
(
!
stop_signal_called
)
{
cerr
<<
"RX"
<<
rx_count
<<
" TX "
<<
tx_count
<<
"
\r
"
;
std
::
this_thread
::
sleep_for
(
std
::
chrono
::
milliseconds
(
400
));
}
//退出
rx_thread
.
join
();
tx_thread
.
join
();
}
int
UHD_SAFE_MAIN
(
int
/*argc*/
,
char
*
/*argv*/
[])
{
//1.创建一个设备,可以不填写,则使用第一台设备。
string
args
(
""
);
//2.设置时钟参考 (internal, external, mimo)
string
ref
=
"internal"
;
cerr
<<
"Creating the usrp device with: "
<<
args
<<
"..."
<<
endl
;
multi_usrp
::
sptr
usrp
=
multi_usrp
::
make
(
args
);
usrp
->
set_clock_source
(
ref
,
multi_usrp
::
ALL_MBOARDS
);
//3.配置接收
tag_channelOptions
rx_op
;
rx_op
.
ant
=
"RX2"
;
rx_op
.
rate
=
50e6
;
rx_op
.
bw
=
50e6
;
rx_op
.
freq
=
2450e6
;
rx_op
.
gain
=
35
;
rx_op
.
channels
[
0
]
=
0
;
//3.1 子设备
if
(
rx_op
.
subdev
.
size
())
usrp
->
set_rx_subdev_spec
(
rx_op
.
subdev
,
multi_usrp
::
ALL_MBOARDS
);
cerr
<<
"RX Using Device: "
<<
usrp
->
get_pp_string
()
<<
endl
;
//3.2 采样率
cerr
<<
"Setting RX Rate: "
<<
(
rx_op
.
rate
/
1e6
)
<<
"Msps..."
<<
endl
;
usrp
->
set_rx_rate
(
rx_op
.
rate
,
multi_usrp
::
ALL_CHANS
);
cerr
<<
"Actual RX Rate: "
<<
usrp
->
get_rx_rate
(
rx_op
.
channels
[
0
])
/
1e6
<<
"Msps..."
<<
endl
;
//3.3 中心频率
cerr
<<
"Setting RX Freq: "
<<
(
rx_op
.
freq
/
1e6
)
<<
"MHz..."
<<
endl
;
cerr
<<
"Setting RX LO Offset: "
<<
(
rx_op
.
lo_offset
/
1e6
)
<<
"MHz..."
<<
endl
;
tune_request_t
tune_request_rx
=
tune_request_t
(
rx_op
.
freq
,
rx_op
.
lo_offset
);
if
(
rx_op
.
int_n_mod
)
tune_request_rx
.
args
=
uhd
::
device_addr_t
(
"mode_n=integer"
);
usrp
->
set_rx_freq
(
tune_request_rx
,
rx_op
.
channels
[
0
]);
cerr
<<
"Actual RX Freq: "
<<
(
usrp
->
get_rx_freq
(
rx_op
.
channels
[
0
])
/
1e6
)
<<
"MHz..."
<<
endl
;
//3.4 增益
cerr
<<
"Setting RX Gain: "
<<
rx_op
.
gain
<<
" dB..."
<<
endl
;
usrp
->
set_rx_gain
(
rx_op
.
gain
,
rx_op
.
channels
[
0
]);
cerr
<<
"Actual RX Gain: "
<<
usrp
->
get_rx_gain
(
rx_op
.
channels
[
0
])
<<
" dB..."
<<
endl
;
//3.5 前端模拟滤波带宽
cerr
<<
"Setting RX Bandwidth: "
<<
(
rx_op
.
bw
/
1e6
)
<<
"MHz..."
<<
endl
;
usrp
->
set_rx_bandwidth
(
rx_op
.
bw
,
rx_op
.
channels
[
0
]);
cerr
<<
"Actual RX Bandwidth: "
<<
usrp
->
get_rx_bandwidth
(
rx_op
.
channels
[
0
])
/
1e6
<<
"MHz..."
<<
endl
;
//3.6 选择天线
if
(
rx_op
.
ant
.
size
())
usrp
->
set_rx_antenna
(
rx_op
.
ant
,
rx_op
.
channels
[
0
]);
//4 检查状态
if
(
rx_op
.
docheck
)
check_rx_status
(
ref
,
usrp
,
rx_op
);
//5.创建流对象实例
uhd
::
stream_args_t
stream_args_rx
(
rx_op
.
type
,
rx_op
.
wirefmt
);
stream_args_rx
.
channels
=
rx_op
.
channels
;
rx_streamer
::
sptr
rx_stream
=
usrp
->
get_rx_stream
(
stream_args_rx
);
//开始收发循环
do_save
<
short
>
(
rx_op
,
rx_stream
);
// finished
cerr
<<
endl
<<
"Done!"
<<
endl
<<
endl
;
return
EXIT_SUCCESS
;
}
typedef
std
::
function
<
uhd
::
sensor_value_t
(
const
string
&
)
>
get_sensor_fn_t
;
bool
check_locked_sensor
(
vector
<
string
>
sensor_names
,
const
char
*
sensor_name
,
get_sensor_fn_t
get_sensor_fn
,
double
setup_time
)
{
if
(
std
::
find
(
sensor_names
.
begin
(),
sensor_names
.
end
(),
sensor_name
)
==
sensor_names
.
end
())
return
false
;
auto
setup_timeout
=
std
::
chrono
::
steady_clock
::
now
()
+
std
::
chrono
::
milliseconds
(
int64_t
(
setup_time
*
1000
));
bool
lock_detected
=
false
;
std
::
cerr
<<
"Checking RX Waiting for: "
<<
sensor_name
;
std
::
cerr
.
flush
();
while
(
true
)
{
if
(
lock_detected
and
(
std
::
chrono
::
steady_clock
::
now
()
>
setup_timeout
))
{
std
::
cerr
<<
" locked."
<<
std
::
endl
;
break
;
}
if
(
get_sensor_fn
(
sensor_name
).
to_bool
())
{
std
::
cerr
<<
"+"
;
std
::
cerr
.
flush
();
lock_detected
=
true
;
}
else
{
if
(
std
::
chrono
::
steady_clock
::
now
()
>
setup_timeout
)
{
std
::
cerr
<<
std
::
endl
;
std
::
cerr
<<
"timed out waiting for consecutive locks on sensor : "
<<
sensor_name
;
return
false
;
}
std
::
cerr
.
flush
();
}
std
::
this_thread
::
sleep_for
(
std
::
chrono
::
milliseconds
(
100
));
}
std
::
cout
<<
std
::
endl
;
return
true
;
}
bool
check_rx_status
(
const
string
&
ref
,
multi_usrp
::
sptr
usrp
,
const
tag_channelOptions
&
op
)
{
// check Ref and LO Lock detect
for
(
size_t
c
:
op
.
channels
)
{
check_locked_sensor
(
usrp
->
get_rx_sensor_names
(
c
),
"lo_locked"
,
[
usrp
,
op
,
c
](
const
string
&
sensor_name
)
{
return
usrp
->
get_rx_sensor
(
sensor_name
,
c
);
},
op
.
setup_time
);
}
if
(
ref
==
"mimo"
)
{
check_locked_sensor
(
usrp
->
get_mboard_sensor_names
(
0
),
"mimo_locked"
,
[
usrp
](
const
string
&
sensor_name
)
{
return
usrp
->
get_mboard_sensor
(
sensor_name
);
},
op
.
setup_time
);
}
if
(
ref
==
"external"
)
{
check_locked_sensor
(
usrp
->
get_mboard_sensor_names
(
0
),
"ref_locked"
,
[
usrp
](
const
string
&
sensor_name
)
{
return
usrp
->
get_mboard_sensor
(
sensor_name
);
},
op
.
setup_time
);
}
return
true
;
}
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