make recorder configurable

This commit is contained in:
BENEDEK László 2025-02-21 10:48:00 +01:00
parent 5f4199c122
commit 6055d50eaf
6 changed files with 235 additions and 94 deletions

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@ -4,7 +4,7 @@ project(pico-radio C)
set(CMAKE_EXPORT_COMPILE_COMMANDS true)
include_directories(include /opt/picoscope/include)
include_directories(include /opt/picoscope/include third-party/c-flags/single-header)
link_directories(/opt/picoscope/lib)
add_subdirectory(src/pico-radio)
add_subdirectory(src/recorder)

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@ -1,7 +1,34 @@
# Pico Radio
## Fast-streaming buffer format
1. Channel A min
2. Channel A max
3. Channel B min
4. Channel B max
## recorder
### Arguments
```
--type, -t
Description: type for output
Default: float
--range, -r
Description: voltage range
Default: 10V
--channel, -c
Description: channel
Default: 0
--buffersize, -b
Description: buffersize
Default: 10000
--max_buffersize, -mb
Description: max buffersize the driver stores
Default: 50000
--sample_interval, -s
Description: sample interval
Default: 1000
--time_units, -u
Description: time units
Default: ns
```

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@ -1,7 +0,0 @@
file(GLOB_RECURSE SOURCES "./*.c")
add_executable(pico-radio ${SOURCES})
target_compile_options(pico-radio PRIVATE -Wall -Wextra)
target_link_libraries(pico-radio ps2000)
set_target_properties(pico-radio PROPERTIES
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
)

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@ -1,80 +0,0 @@
#include <signal.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include <libps2000/ps2000.h>
bool stop = false;
void capture_stop(int signal) {
(void)signal;
stop = true;
}
static const uint32_t buffersize = 10000;
void get_overview_buffers(int16_t** overviewBuffers, int16_t overflow, uint32_t triggeredAt, int16_t triggered, int16_t auto_stop, uint32_t nValues) {
(void)overflow;
(void)triggeredAt;
(void)triggered;
(void)auto_stop;
fprintf(stderr, "nValues: %u\n", nValues);
static float floatbuff[10000]; // TODO variable
for (unsigned i = 0; i < nValues; i++) {
floatbuff[i] = overviewBuffers[0][i];
floatbuff[i] /= 32768; // TODO limit.h
}
fwrite(floatbuff, sizeof(float), nValues, stdout);
}
int main(int argc, char** argv) {
(void)argc;
(void)argv;
int16_t unit = ps2000_open_unit();
if (ps2000_set_channel(unit, PS2000_CHANNEL_A, true, false, PS2000_10V) == 0) {
fprintf(stderr, "set_channel failed!\n");
ps2000_close_unit(unit);
return 1;
}
if (ps2000_set_trigger(unit, PS2000_NONE, 0, 0, 0, 0) == 0) {
fprintf(stderr, "set_trigger failed!\n");
ps2000_close_unit(unit);
return 1;
}
if (ps2000_run_streaming_ns(unit, 1000, PS2000_NS, buffersize, false, 1, 50000) == 0) {
fprintf(stderr, "run_streaming_ns failed!\n");
ps2000_close_unit(unit);
return 1;
}
signal(SIGINT, &capture_stop);
while (!stop) {
if (ps2000_get_streaming_last_values(unit, &get_overview_buffers) == 0) {
// fprintf(stderr, "callback won't be called!\n");
}
/*
int16_t overrun = 0;
if (ps2000_overview_buffer_status(unit, &overrun) != 0) {
fprintf(stderr, "failed to check overrun!\n");
} else if (overrun) {
fprintf(stderr, "overrun!\n");
}
// usleep(0);
*/
}
ps2000_stop(unit);
ps2000_close_unit(unit);
return 0;
}

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@ -0,0 +1,7 @@
file(GLOB_RECURSE SOURCES "./*.c")
add_executable(recorder ${SOURCES})
target_compile_options(recorder PRIVATE -Wall -Wextra)
target_link_libraries(recorder ps2000)
set_target_properties(recorder PROPERTIES
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
)

194
src/recorder/main.c Normal file
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@ -0,0 +1,194 @@
#include <signal.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <c-flags.h>
#include <libps2000/ps2000.h>
const char* DEFAULT_TYPE = "float";
const char* DEFAULT_RANGE = "10V";
const uint8_t DEFAULT_CHANNEL = 0;
const uint32_t DEFAULT_BUFFERSIZE = 10000;
const uint32_t DEFAULT_MAX_BUFFERSIZE = DEFAULT_BUFFERSIZE * 5;
const uint32_t DEFAULT_SAMPLE_INTERVAL = 1000;
const char* DEFAULT_TIME_UNITS = "ns";
bool stop = false;
uint8_t* channel;
uint32_t* max_buffersize;
void capture_stop(int signal) {
(void)signal;
stop = true;
}
void get_overview_buffers_float(int16_t** overviewBuffers, int16_t overflow, uint32_t triggeredAt, int16_t triggered, int16_t auto_stop, uint32_t nValues) {
(void)overflow;
(void)triggeredAt;
(void)triggered;
(void)auto_stop;
/* this buffer lives the whole lifetime of the application
and so doesn't need to be cleaned up, the os will do it for us */
static float* float_buffer = NULL;
if (float_buffer == NULL) {
float_buffer = (float*)malloc(sizeof(float) * *max_buffersize);
if (float_buffer == NULL) {
fprintf(stderr, "failed to allocate buffers\n");
stop = true;
return;
}
}
// int16 -> float
for (uint32_t i = 0; i < nValues; i++) {
float_buffer[i] = overviewBuffers[*channel][i];
float_buffer[i] /= INT16_MAX;
}
fwrite(float_buffer, sizeof(float), nValues, stdout);
}
void get_overview_buffers_int16(int16_t** overviewBuffers, int16_t overflow, uint32_t triggeredAt, int16_t triggered, int16_t auto_stop, uint32_t nValues) {
(void)overflow;
(void)triggeredAt;
(void)triggered;
(void)auto_stop;
fwrite(overviewBuffers[*channel], sizeof(int16_t), nValues, stdout);
}
PS2000_RANGE parse_range(char* range) {
if (strcmp(range, "10mV") == 0)
return PS2000_10MV;
if (strcmp(range, "20mV") == 0)
return PS2000_20MV;
if (strcmp(range, "50mV") == 0)
return PS2000_50MV;
if (strcmp(range, "100mV") == 0)
return PS2000_100MV;
if (strcmp(range, "200mV") == 0)
return PS2000_200MV;
if (strcmp(range, "500mV") == 0)
return PS2000_500MV;
if (strcmp(range, "1V") == 0)
return PS2000_1V;
if (strcmp(range, "2V") == 0)
return PS2000_2V;
if (strcmp(range, "5V") == 0)
return PS2000_5V;
if (strcmp(range, "10V") == 0)
return PS2000_10V;
if (strcmp(range, "20V") == 0)
return PS2000_20V;
if (strcmp(range, "50V") == 0)
return PS2000_50V;
return PS2000_MAX_RANGES;
}
PS2000_TIME_UNITS parse_units(char* unit) {
if (strcmp(unit, "fs"))
return PS2000_FS;
if (strcmp(unit, "ps"))
return PS2000_PS;
if (strcmp(unit, "ns"))
return PS2000_US;
if (strcmp(unit, "us"))
return PS2000_US;
if (strcmp(unit, "ms"))
return PS2000_MS;
if (strcmp(unit, "s"))
return PS2000_S;
return PS2000_MAX_TIME_UNITS;
}
void cleanup(int16_t unit) {
ps2000_stop(unit);
ps2000_close_unit(unit);
}
int main(int argc, char** argv) {
// parse arguments
if (argc > 0)
c_flags_set_application_name(argv[0]);
char** type = c_flag_string("type", "t", "type for output", DEFAULT_TYPE);
char** range = c_flag_string("range", "r", "voltage range", DEFAULT_RANGE);
channel = c_flag_uint8("channel", "c", "channel", DEFAULT_CHANNEL);
uint32_t* buffersize = c_flag_uint32("buffersize", "b", "buffersize", DEFAULT_BUFFERSIZE);
max_buffersize = c_flag_uint32("max_buffersize", "mb", "max buffersize the driver stores", DEFAULT_MAX_BUFFERSIZE);
uint32_t* sample_interval = c_flag_uint32("sample_interval", "s", "sample interval", DEFAULT_SAMPLE_INTERVAL);
char** time_units = c_flag_string("time_units", "u", "time units", DEFAULT_TIME_UNITS);
c_flags_parse(&argc, &argv, true);
// validate arguments
GetOverviewBuffersMaxMin get_overview_buffers_func;
if (strcmp(*type, "float") == 0) {
get_overview_buffers_func = get_overview_buffers_float;
} else if (strcmp(*type, "int16")) {
get_overview_buffers_func = get_overview_buffers_int16;
} else {
fprintf(stderr, "unknown output type: %s\n", *type);
return -1;
}
PS2000_RANGE selected_range = parse_range(*range);
if (selected_range == PS2000_MAX_RANGES) {
fprintf(stderr, "invalid voltage range: %s\n", *range);
return -1;
}
PS2000_TIME_UNITS selected_units = parse_units(*time_units);
if (selected_units == PS2000_MAX_TIME_UNITS) {
fprintf(stderr, "invalid time unit: %s\n", *time_units);
return -1;
}
if (*channel > 1) {
fprintf(stderr, "channel out of range: %u\n", *channel);
return -1;
}
if (*max_buffersize <= *buffersize) {
fprintf(stderr, "max buffersize needs to be bigger than buffersize\n");
return -1;
}
// configure picoscope
int16_t unit = ps2000_open_unit();
if (ps2000_set_channel(unit, PS2000_CHANNEL_A + *channel, true, false, selected_range) == 0) {
fprintf(stderr, "set_channel failed!\n");
cleanup(unit);
return -1;
}
// disable interrupts
if (ps2000_set_trigger(unit, PS2000_NONE, 0, 0, 0, 0) == 0) {
fprintf(stderr, "set_trigger failed!\n");
cleanup(unit);
return -1;
}
// start data capture without aggregation
if (ps2000_run_streaming_ns(unit, *sample_interval, selected_units, *buffersize, false, 1, *max_buffersize) == 0) {
fprintf(stderr, "run_streaming_ns failed!\n");
cleanup(unit);
return -1;
}
// start reading data
signal(SIGINT, &capture_stop);
while (!stop) {
ps2000_get_streaming_last_values(unit, get_overview_buffers_func);
}
cleanup(unit);
return 0;
}