mirrors/gnss-sdr
1
0
Fork 0
mirror of https://github.com/gnss-sdr/gnss-sdr synced 2025-11-03 08:43:04 +00:00
Code Issues Releases Wiki Activity

solved a bug which caused the tracking pull-in test not to work correctly with Galileo E1 when using the downsampling filter in the acquisition.

Browse Source
This commit is contained in:
Marc Majoral
2018-11-09 20:50:32 +01:00
parent 047807ba0c
commit f150fe02c7
4 changed files with 225 additions and 174 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/algorithms/acquisition/libs/fpga_acquisition.cc
View File

@@ -135,6 +135,7 @@ fpga_acquisition::fpga_acquisition(std::string device_name,
d_map_base = nullptr; // driver memory map
d_all_fft_codes = all_fft_codes;
//printf("acq internal device name = %s\n", d_device_name.c_str());
// open communication with HW accelerator
if ((d_fd = open(d_device_name.c_str(), O_RDWR | O_SYNC)) == -1)
{
@@ -239,7 +240,7 @@ void fpga_acquisition::fpga_configure_acquisition_local_code(lv_16sc_t fft_local
//printf("debug local code %d real = %d imag = %d local_code = %d fft_data = %d\n", k, tmp, tmp2, local_code, fft_data);
//printf("debug local code %d real = 0x%08X imag = 0x%08X local_code = 0x%08X fft_data = 0x%08X\n", k, tmp, tmp2, local_code, fft_data);
}
//printf("d_vector_length = %d\n", d_vector_length);
//printf("acq d_vector_length = %d\n", d_vector_length);
//while(1);
}
@@ -269,6 +270,7 @@ void fpga_acquisition::run_acquisition(void)
{
read_result_valid(&result_valid); // polling
}
//printf("result valid\n");
// wait for interrupt
//nb = read(d_fd, &irq_count, sizeof(irq_count));
//usleep(500000); // debug
@@ -382,7 +384,7 @@ void fpga_acquisition::set_doppler_sweep(uint32_t num_sweeps)
phase_step_rad_int = static_cast<int32_t>(phase_step_rad_int_temp * (POW_2_29)); // * 2^29 (in total it makes x2^31 in two steps to avoid the warnings
//printf("AAA writing phase_step_rad_int for doppler step = %d to d map base 4\n", phase_step_rad_int);
d_map_base[4] = phase_step_rad_int;
//printf("AAA writing num sweeps to d map base 5 = %d\n", num_sweeps);
//printf("AAA writing num sweeps to d map base 5 = 1\n");
d_map_base[5] = 1; // 1 sweep
}
@@ -442,9 +444,9 @@ void fpga_acquisition::configure_acquisition()
//printf("acq lib configure acquisition called\n");
//printf("AAA d_select_queue = %d\n", d_select_queue);
d_map_base[0] = d_select_queue;
//printf("AAA writing d_vector_length = %d to d map base 1\n ", d_vector_length);
//printf("acq internal writing d_vector_length = %d to d map base 1\n ", d_vector_length);
d_map_base[1] = d_vector_length;
//printf("AAA writing d_nsamples = %d to d map base 2\n ", d_nsamples);
//printf("acq interal writing d_nsamples = %d to d map base 2\n ", d_nsamples);
d_map_base[2] = d_nsamples;
//printf("AAA writing LOG2 d_vector_length = %d to d map base 7\n ", (int)log2((float)d_vector_length));
d_map_base[7] = static_cast<int32_t>(log2(static_cast<float>(d_vector_length))); // log2 FFTlength