basic signal generator control

CMakeLists.txt

@@ -13,3 +13,4 @@ link_directories(/opt/picoscope/lib)
 
 add_subdirectory(src/recorder)
 add_subdirectory(src/filter)
+add_subdirectory(src/awg)

src/awg/CMakeLists.txt

@@ -0,0 +1,7 @@
+file(GLOB_RECURSE SOURCES "./*.c")
+add_executable(awg ${SOURCES})
+target_compile_options(awg PRIVATE -Wall -Wextra)
+target_link_libraries(awg ps2000)
+set_target_properties(awg PROPERTIES
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+)

src/awg/main.c

@@ -0,0 +1,33 @@
+#include <libps2000/ps2000.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(void) {
+  int16_t unit = ps2000_open_unit();
+  if (unit == -1) {
+    fprintf(stderr, "failed to open a unit!\n");
+    return -1;
+  } else if (unit == 0) {
+    fprintf(stderr, "no units to open!\n");
+    return -1;
+  }
+
+  for (int32_t i = 0; i < 2000; i++) {
+    int16_t err = ps2000_set_sig_gen_built_in(unit, i * 1000, 0, PS2000_DC_VOLTAGE, 0, 0, 0, 0, PS2000_UPDOWN, 0);
+
+    if (err == 0) {
+      printf("failed to set voltage\n");
+      return 1;
+    } else {
+      fprintf(stderr, "%d\n", i);
+    }
+
+    usleep(1000);
+  }
+
+  ps2000_stop(unit);
+  ps2000_close_unit(unit);
+
+  return 0;
+}