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fixed FPGA dual-band post-processing mode.

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This commit is contained in:
Marc Majoral 2021-03-12 18:01:25 +01:00
parent 32c699befc
commit 4141164fac
1 changed files with 26 additions and 20 deletions
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46
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
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@ -103,22 +103,6 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
const int l1_band = configuration->property("Channels_1C.count", 0) +
configuration->property("Channels_1B.count", 0);
// by default the DMA transfers samples corresponding to two frequency bands to the FPGA
num_freq_bands_ = 2;
dma_buff_offset_pos_ = 0;
// if only one input file is specified in the configuration file then:
// if there is at least one channel assigned to frequency band 1 then the DMA transfers the samples to the L1 frequency band channels
// otherwise the DMA transfers the samples to the L2/L5 frequency band channels
if (filename1.empty())
{
num_freq_bands_ = 1;
if (l1_band != 0)
{
dma_buff_offset_pos_ = 2;
}
}
const double default_seconds_to_skip = 0.0;
const std::string empty_string;
@ -140,6 +124,27 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
filename1 = configuration->property(role + ".filename1", empty_string);
}
// by default the DMA transfers samples corresponding to two frequency bands to the FPGA
num_freq_bands_ = 2;
dma_buff_offset_pos_ = 0;
// if only one input file is specified in the configuration file then:
// if there is at least one channel assigned to frequency band 1 then the DMA transfers the samples to the L1 frequency band channels
// otherwise the DMA transfers the samples to the L2/L5 frequency band channels
// if more than one input file are specified then the DMA transfer the samples to both the L1 and the L2/L5 frequency channels.
if (filename1.empty())
{
num_freq_bands_ = 1;
if (l1_band != 0)
{
dma_buff_offset_pos_ = 2;
}
}
else
{
dma_buff_offset_pos_ = 2;
}
samples_ = configuration->property(role + ".samples", static_cast<int64_t>(0));
const double seconds_to_skip = configuration->property(role + ".seconds_to_skip", default_seconds_to_skip);
@ -649,6 +654,7 @@ void Ad9361FpgaSignalSource::run_DMA_process(const std::string &filename0, const
// run the DMA
while (run_DMA)
{
dma_index = 0;
if (nbytes_remaining < read_buffer_size)
{
read_buffer_size = nbytes_remaining;
@ -684,26 +690,26 @@ void Ad9361FpgaSignalSource::run_DMA_process(const std::string &filename0, const
}
// read filename 1 (if enabled)
dma_index = 0;
if (num_freq_bands_ > 1)
{
dma_index = 0;
try
{
infile1.read(reinterpret_cast<char *>(input_samples.data()), read_buffer_size);
infile2.read(reinterpret_cast<char *>(input_samples.data()), read_buffer_size);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception reading file " << filename1 << '\n';
break;
}
if (infile1)
if (infile2)
{
nread_elements = read_buffer_size;
}
else
{
// FLAG AS ERROR !! IT SHOULD NEVER HAPPEN
nread_elements = infile1.gcount();
nread_elements = infile2.gcount();
}
for (int index0 = 0; index0 < (nread_elements); index0 += 2)