control Rigol PSU
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parent
5b8f284a41
commit
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2
Makefile
2
Makefile
@ -4,7 +4,7 @@ SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui
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SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
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OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
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CXXFLAGS = -std=c++14 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I$(POCKETFFT_DIR)
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CXXFLAGS = -std=c++20 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I$(POCKETFFT_DIR)
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CXXFLAGS += -g -Wall -Wformat -O2
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LIBS += -lGL `pkg-config --static --libs glfw3 libbladeRF`
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7
flake.lock
generated
7
flake.lock
generated
@ -2,16 +2,15 @@
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"nodes": {
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"nixpkgs": {
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"locked": {
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"lastModified": 1693953029,
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"narHash": "sha256-1+28KQl4YC4IBzKo/epvEyK5KH4MlgoYueJ8YwLGbOc=",
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"lastModified": 1694427587,
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"narHash": "sha256-1DIVQFhmCt6N4AzF1QwqEE758JmQRDs4vpSC2RpjjTg=",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "4077a0e4ac3356222bc1f0a070af7939c3098535",
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"rev": "6559511e312129514eecd392cc530fafa858f7b7",
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"type": "github"
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},
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"original": {
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"owner": "NixOS",
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"ref": "nixos-23.05",
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"repo": "nixpkgs",
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"type": "github"
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}
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11
flake.nix
11
flake.nix
@ -1,11 +1,14 @@
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{
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description = "Micro Optical Spectrum Analyzer";
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inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-23.05;
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inputs.nixpkgs.url = github:NixOS/nixpkgs;
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outputs = { self, nixpkgs }:
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let
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pkgs = import nixpkgs { system = "x86_64-linux"; };
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pkgs = import nixpkgs {
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system = "x86_64-linux";
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#config = { replaceStdenv = ({ pkgs }: pkgs.gcc13Stdenv); };
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};
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imgui_dir = "${pkgs.imgui}/include/imgui";
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pocketfft = pkgs.fetchgit {
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url = "https://gitlab.mpcdf.mpg.de/mtr/pocketfft.git";
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@ -13,7 +16,7 @@
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hash = "sha256-xl7Tr1A1cqXhAL1Bljfk68R3AB1xOgkH15LHKxjYoSc=";
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};
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in rec {
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packages.x86_64-linux.fastsa = pkgs.stdenv.mkDerivation {
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packages.x86_64-linux.fastsa = pkgs.gcc13Stdenv.mkDerivation {
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name = "fastsa";
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src = self;
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nativeBuildInputs = [ pkgs.pkg-config ];
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@ -27,7 +30,7 @@
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cp fastsa $out/bin
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'';
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};
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devShell.x86_64-linux = pkgs.mkShell {
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devShell.x86_64-linux = pkgs.mkShell.override { stdenv = pkgs.gcc13Stdenv; } {
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name = "fastsa-dev-shell";
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buildInputs = packages.x86_64-linux.fastsa.nativeBuildInputs ++ packages.x86_64-linux.fastsa.propagatedBuildInputs;
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shellHook = packages.x86_64-linux.fastsa.preBuild;
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25
main.cpp
25
main.cpp
@ -7,6 +7,8 @@
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#include <vector>
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#include <complex>
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#include <chrono>
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#include <format>
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#include <experimental/net>
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#include <GLFW/glfw3.h>
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@ -20,6 +22,7 @@
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#define POCKETFFT_NO_MULTITHREADING // MT doesn't seem to help at small sizes
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#include <pocketfft_hdronly.h>
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namespace net = std::experimental::net;
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static std::atomic<bool> terminate_dsp;
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@ -35,9 +38,12 @@ static std::atomic<int> fps;
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static void dsp_thread() {
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using namespace std::literals::chrono_literals;
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net::io_context io_context;
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net::ip::tcp::socket tec_socket(io_context);
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tec_socket.connect(net::ip::tcp::endpoint(net::ip::make_address("192.168.1.91"), 5555));
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size_t len = 16384;
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std::vector<std::complex<int16_t>> frames(len);
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std::vector<std::complex<float>> frames_f(len);
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pocketfft::shape_t shape{len};
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pocketfft::stride_t stride(1);
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@ -45,17 +51,30 @@ static void dsp_thread() {
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pocketfft::shape_t axes;
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axes.push_back(0);
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std::vector<std::complex<float>> frames_ft(len);
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int iterations = 0;
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auto last_second = std::chrono::steady_clock::now();
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auto last_tec = std::chrono::steady_clock::now();
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while(!terminate_dsp) {
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int status;
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if((status = bladerf_sync_rx(bladerf_dev, frames.data(), len, NULL, 0)) != 0) {
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std::cerr << "failed to receive samples from bladeRF: " << bladerf_strerror(status) << std::endl;
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break;
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}
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// FFT
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for(size_t i=0;i<len;i++)
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frames_f[i] = frames[i];
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pocketfft::c2c(shape, stride, stride, axes, pocketfft::FORWARD, frames_f.data(), frames_ft.data(), 1.0f);
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// stabilize laser
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if((std::chrono::steady_clock::now() - last_tec) >= 100ms) {
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// FIXME: net::write seems unimplemented as of libstdc++ 13
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tec_socket.write_some(net::buffer(std::format(":SOUR2:VOLT {:.3f}\n", 0.1)));
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last_tec += 100ms;
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}
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// update waterfall
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{
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std::lock_guard<std::mutex> guard(waterfall_data_mutex);
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std::memmove(&waterfall_data[waterfall_width], &waterfall_data[0], sizeof(int)*waterfall_width*(waterfall_height - 1));
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@ -65,13 +84,15 @@ static void dsp_thread() {
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waterfall_data[i] = 0xff000000 | 0x010101*std::min(int(abs(frames_ft[j])/900.), 255);
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}
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}
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// FPS counter
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iterations++;
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if((std::chrono::steady_clock::now() - last_second) >= 1s) {
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fps = iterations;
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iterations = 0;
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last_second += 1s;
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}
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};
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}
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}
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int main(int argc, char* argv[])
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