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Throttle the DMA to give more time to other signal processing tasks.

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This commit is contained in:
Marc Majoral 2019-10-28 12:51:11 +01:00
parent 124531ba39
commit f3485bb39b
1 changed files with 6 additions and 2 deletions
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8
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
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@ -48,11 +48,12 @@
#include <unistd.h> // for write #include <unistd.h> // for write
#include <utility> #include <utility>
#include <vector> #include <vector>
#include <chrono> // for std::this_thread
#include <thread> // for std::chrono
void run_DMA_process(const std::string &FreqBand, const std::string &Filename1, const std::string &Filename2, const bool &enable_DMA) void run_DMA_process(const std::string &FreqBand, const std::string &Filename1, const std::string &Filename2, const bool &enable_DMA)
{ {
const int MAX_INPUT_SAMPLES_TOTAL = 8192; const int MAX_INPUT_SAMPLES_TOTAL = 16384;
int max_value = 0; int max_value = 0;
int tx_fd; // DMA descriptor int tx_fd; // DMA descriptor
std::ifstream infile1; std::ifstream infile1;
@ -256,6 +257,9 @@ void run_DMA_process(const std::string &FreqBand, const std::string &Filename1,
{ {
std::cerr << "Error: DMA could not send all the required samples " << std::endl; std::cerr << "Error: DMA could not send all the required samples " << std::endl;
} }
// Throttle the DMA
std::this_thread::sleep_for(std::chrono::milliseconds(1));
} }
if (nread_elements != MAX_INPUT_SAMPLES_TOTAL * 2) if (nread_elements != MAX_INPUT_SAMPLES_TOTAL * 2)