A simple operating system for the ESP32-based M5StickC
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#include <M5StickC.h>
#include "Kernel.h"
#include "EAT.h"
#include "Colours.h"
#include "UI.h"
#include "PowerManagement.h"
#include "UserInput.h"
#include "Clock.h"
#include "Battery.h"
int count = 0;
bool input_a = false, input_b = false;
void test_draw(int hwnd, int x, int y, int width, int height)
{
M5.Lcd.setCursor(x, y);
M5.Lcd.println(String(count));
y += 10;
if (input_a)
{
M5.Lcd.setCursor(x, y);
M5.Lcd.println("Input A!");
y += 10;
}
if (input_b)
{
M5.Lcd.setCursor(x, y);
M5.Lcd.println("Input B!");
y += 10;
}
}
int test_func(int pid, unsigned int signal)
{
if (signal & SIGNAL_START)
{
Kernel_signal_mask(pid, SIGNAL_START | SIGNAL_STOP | SIGNAL_TICK | SIGNAL_INPUT_A | SIGNAL_INPUT_B);
if (EAT_allocate(1, 2))
{
EAT_write(1, 0, 0);
EAT_write(1, 1, 0);
}
else
{
byte count_low = EAT_read(1, 0);
byte count_hi = EAT_read(1, 1);
count = (count_hi << 8) + count_low;
}
}
if ((signal & SIGNAL_STOP)) // || count == 5)
{
EAT_write(1, 0, count & 0xFF);
EAT_write(1, 1, (count >> 8) & 0xFF);
return 255;
}
if ((signal & SIGNAL_TICK))
{
count++;
Kernel_signal(SIGNAL_REDRAW);
input_a = false;
input_b = false;
}
if ((signal & SIGNAL_INPUT_A) && !input_a)
{
input_a = true;
Kernel_signal(SIGNAL_REDRAW);
}
if ((signal & SIGNAL_INPUT_B) && !input_b)
{
input_b = true;
Kernel_signal(SIGNAL_REDRAW);
}
return 0;
}
void setup()
{
M5.begin();
Serial.begin(115200);
delay(30);
Kernel_setup();
int pid;
pid = Kernel_start(&UI, 86400);
Serial.printf("[UI ] pid %d\n", pid);
pid = Kernel_start(&PowerManagement, 1000);
Serial.printf("[POWER] pid %d\n", pid);
pid = Kernel_start(&UserInput, 0);
Serial.printf("[INPUT] pid %d\n", pid);
pid = Kernel_start(&test_func, 5000);
Serial.printf("[TEST ] pid %d\n", pid);
pid = Kernel_start(&Clock, 1000);
Serial.printf("[CLOCK] pid %d\n", pid);
pid = Kernel_start(&Battery, 2000);
Serial.printf("[BATT ] pid %d\n", pid);
M5.update();
if (M5.BtnB.isPressed())
{
EAT_initialize();
}
else
{
EAT_load();
}
}
void loop()
{
M5.update();
Kernel_tick();
}