initial

src/main.cpp

@@ -0,0 +1,61 @@
+#include <Arduino.h>
+#include <STM32FreeRTOS.h>
+#include <pivector.h>
+
+
+//global vars
+volatile int val = 0;
+
+
+//functions
+void TaskBlink(void *pvParameters);
+void keyPressed();
+
+
+// initialization
+void setup() {
+  Serial.begin(9600);
+  while (!Serial);
+  pinMode(A0, INPUT_PULLUP);
+  attachInterrupt(A0, keyPressed, FALLING);
+  xTaskCreate(
+    TaskBlink,
+    (const portCHAR *)"Blink",   // A name just for humans
+    128,  // This stack size can be checked & adjusted by reading the Stack Highwater
+    NULL,
+    2,  // Priority, with 3 (configMAX_PRIORITIES - 1) being the highest, and 0 being the lowest.
+    NULL
+  );
+  Serial.println("Starting");
+  Serial.flush();
+  vTaskStartScheduler(); // start FreeRTOS, function don't exit
+  Serial.println("Start FreeRTOS failed! Insufficient RAM");
+  while(1); // panic
+}
+
+void loop(){} // unused
+
+
+// This is a task.
+void TaskBlink(void *) {
+  int d = 100;
+  pinMode(PC13, OUTPUT);
+  PIVector<float> vec;
+  vec.resize(10, [](size_t i){return i*2;});
+  while (1) {
+    Serial.println("TaskBlink");
+    for (float f : vec) Serial.println(f);
+    if (val > 0) d = 300;
+    else d = 100;
+    digitalWrite(PC13, HIGH);
+    vTaskDelay(d / portTICK_PERIOD_MS);
+    digitalWrite(PC13, LOW);
+    vTaskDelay(d / portTICK_PERIOD_MS);
+  }
+}
+
+
+// key interrupt
+void keyPressed() {
+  val = 1 - val;
+}