277 lines
8.9 KiB
C++
277 lines
8.9 KiB
C++
/***************************************************************************
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Author: Markus Rosenstihl
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Created: June 2010
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****************************************************************************/
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#include "machines/hardware.h"
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#include "core/core.h"
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#include "drivers/PTS-Synthesizer/PTS.h"
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#include "drivers/Spectrum-MI40xxSeries/Spectrum-MI40xxSeries.h"
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#include "drivers/SpinCore-PulseBlaster24Bit/SpinCore-PulseBlaster24Bit.h"
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#include <glib.h>
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#include <time.h>
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#include <fstream>
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/**
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\defgroup General NMR Spectrometer
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\ingroup machines
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Uses:
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\li Spincore Pulseblaster 24 Bit
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\li Spectrum MI4021 with gated sampling option (PB ref. clock is fed to Ext.Clock)
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\li Programmed Test Sources PTS frequency synthesizer with phase control
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This backend uses a configuration file for setting the various lines and configurations.
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\par Starting the hardware
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This procedure should assure the correct initialisation of the hardware:
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\li Switch off main switches of SpinCore Pulseblaster and Computer (the main switch of the computer is at the rear)
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\li Switch on Computer and start Windows or Linux
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@{
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*/
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struct timespec start_delay;
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class general_hardware: public hardware
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{
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PTS* my_pts;
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SpinCorePulseBlaster24Bit* my_pulseblaster;
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SpectrumMI40xxSeries* my_adc;
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bool with_sync;
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public:
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general_hardware()
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{
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int SYSCONF = 0;
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int USRCONF = 0;
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GKeyFile* cfg_file;
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GError *error = NULL;
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char cfg_name[512];
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const gchar* usr_configdir;
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const gchar* const * sys_configdirs;
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sys_configdirs = g_get_system_config_dirs();
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usr_configdir = g_get_user_config_dir();
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cfg_file = g_key_file_new();
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for (int i = 0; i < 100; i++)
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{
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if (sys_configdirs[i] == NULL)
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break;
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else
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{
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snprintf(cfg_name, 512, "%s/damaris/backend.conf", sys_configdirs[i]);
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fprintf(stdout, "reading backend configuration file (system: %i): %s...\n", i, cfg_name);
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if (!g_key_file_load_from_file(cfg_file, cfg_name, G_KEY_FILE_NONE, &error))
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{
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if (error->code != 4)
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{
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fprintf(stdout, "%s","found!\n");
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g_log(G_LOG_DOMAIN, G_LOG_LEVEL_WARNING, "%s", error->message);
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}
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else
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printf("not found!\n");
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}
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else
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SYSCONF = 1;
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error = NULL; // reset error
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}
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}
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snprintf(cfg_name, 512, "%s/damaris/backend.conf", usr_configdir);
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fprintf(stdout, "reading backend configuration file (user): %s...\n", cfg_name);
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if (!g_key_file_load_from_file(cfg_file, cfg_name, G_KEY_FILE_NONE, &error))
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{
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if (error->code != 4)
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{
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fprintf(stdout, "found!\n");
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g_log(G_LOG_DOMAIN, G_LOG_LEVEL_WARNING,"%s", error->message);
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}
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else
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printf("not found!\n");
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error = NULL;
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}
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else
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USRCONF = 1;
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if (!(SYSCONF | USRCONF)) {
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error = NULL;
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throw(core_exception("configuration failed!\n"));
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}
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int start_delay_msec = g_key_file_get_integer(cfg_file, "PB", "start_delay_msec", &error);
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::start_delay = { start_delay_msec/1000, start_delay_msec%1000 * 1000000L};
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if (error)
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g_error("%s",error->message);
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printf("done!\n");
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/* configure ADC card */
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ttlout trigger;
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trigger.id = g_key_file_get_integer(cfg_file, "ADC", "id", &error);
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if (error)
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g_error("%s",error->message);
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error = NULL;
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trigger.ttls = (channel_array) (1 << g_key_file_get_integer(cfg_file, "ADC", "trigger_line", &error));
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if (error)
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g_error("%s",error->message);
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error = NULL;
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int ext_reference_clock = (int) g_key_file_get_double(cfg_file, "ADC", "refclock", &error); // 50 MHz from PB24 SP17; defaults to 100MHz (PB24 SP 2)
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if (error)
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g_error("%s",error->message);
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error = NULL;
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double impedance = g_key_file_get_double(cfg_file, "ADC", "impedance", &error); // Ohm ( or 50 Ohm)
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if (error)
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g_error("%s",error->message);
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error = NULL;
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my_adc = new SpectrumMI40xxSeries(trigger, (float) impedance, ext_reference_clock);
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/* configure PulseBlaster */
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int pb_id = g_key_file_get_integer(cfg_file, "PB", "id", &error);
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if (error)
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g_error("%s",error->message);
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error = NULL;
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double pb_refclock = g_key_file_get_double(cfg_file, "PB", "refclock", &error);
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if (error)
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g_error("%s",error->message);
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error = NULL;
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int pb_sync_bit = g_key_file_get_integer(cfg_file, "PB", "sync_line", &error);
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if (error)
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g_error("%s",error->message);
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error = NULL;
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int pb_sync = 0;
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if (pb_sync_bit != 128) {
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pb_sync = 1 << pb_sync_bit;
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with_sync = 1;
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my_pulseblaster = new SpinCorePulseBlaster24Bit(pb_id, pb_refclock, pb_sync);
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}
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else {
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with_sync = 0;
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my_pulseblaster = new SpinCorePulseBlaster24Bit(pb_id, pb_refclock,0);
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}
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/* configure PTS */
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int pts_id = g_key_file_get_integer(cfg_file, "PTS", "id", &error);
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if (error)
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g_error("%s",error->message);
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error = NULL;
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my_pts = new PTS_latched(pts_id);
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// PTS 500 has 0.36 or 0.72 above 200MHz ; PTS 310 has 0.225 degrees/step
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my_pts->phase_step = (float) g_key_file_get_double(cfg_file, "PTS", "phase_stepsize", &error);
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if (error)
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g_error("%s",error->message);
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error = NULL;
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// publish devices
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the_pg = my_pulseblaster;
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the_adc = my_adc;
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the_fg = my_pts;
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}
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result* experiment(const state& exp)
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{
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result* r = NULL;
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for (size_t tries = 0; r == NULL && core::term_signal == 0 && tries < 102; ++tries)
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{
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state* work_copy = exp.copy_flat();
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if (work_copy == NULL)
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return new error_result(1, "could not create work copy of experiment sequence");
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try
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{
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if (the_fg != NULL)
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the_fg->set_frequency(*work_copy);
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if (the_adc != NULL)
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the_adc->set_daq(*work_copy);
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else
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throw ADC_exception("the_adc == NULL\n");
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// ADC configured wait start_delay_msec before loading and starting pulse card
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nanosleep(&::start_delay, NULL);
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// the pulse generator is necessary
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if (with_sync) {
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my_pulseblaster->run_pulse_program_w_sync(*work_copy, my_adc->get_sample_clock_frequency());
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}
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else {
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//experiment_prepare_dacs(work_copy);
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//experiment_run_pulse_program(work_copy);
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the_pg->run_pulse_program(*work_copy);
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}
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// wait for pulse generator
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the_pg->wait_till_end();
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// after that, the result must be available
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if (the_adc != NULL) {
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r = the_adc->get_samples();
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}
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else {
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r = new adc_result(1, 0, NULL);
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throw ADC_exception("ADC result not available");
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}
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}
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catch (const RecoverableException &e)
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{
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// there is a weird bug with string memory allocation for large messages, resize manually to cure this
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std::string str;
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str.resize(strlen(e.what()));
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str = e.what();
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r = new error_result(1, str);
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}
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delete work_copy;
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if (core::quit_signal != 0)
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break;
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}
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return r;
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}
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virtual ~general_hardware()
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{
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if (the_adc != NULL)
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delete the_adc;
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if (the_fg != NULL)
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delete the_fg;
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if (the_pg != NULL)
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delete the_pg;
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}
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};
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/**
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\brief brings standard core together with the general NMR hardware
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*/
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class general_core: public core
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{
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std::string the_name;
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public:
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general_core(const core_config& conf) :
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core(conf)
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{
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the_hardware = new general_hardware();
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the_name = "general core";
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}
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virtual const std::string& core_name() const
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{
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return the_name;
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}
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};
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/**
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@}
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*/
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int main(int argc, const char** argv)
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{
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int return_result = 0;
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try
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{
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core_config my_conf(argv, argc);
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// setup input and output
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general_core my_core(my_conf);
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// start core application
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my_core.run();
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}
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catch (const DamarisException& e)
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{
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fprintf(stderr, "%s\n", e.what());
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return_result = 1;
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}
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return return_result;
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}
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