This repository contains a work in progress codebase, plase don't use it yet!
I started this project because I think a basic Hello World Blink should look like at least this elegant:
#include "mcu.h"
using namespace tm4cpp;
class Main: public Runnable
{
GpioF ioPortF; // the leds are connected to port F on our test board
public:
// this is the startup code
Main()
{
ioPortF.setup(gpio::Pin1 | gpio::Pin3); // setup the two led pins as output
ioPortF(gpio::Pin3, true); // turn on pin3
}
// you can have a run loop if you so desire
void runLoop()
{
ioPortF.toggle(gpio::Pin1 | gpio::Pin3); // inverts the state of the two leds
SystemTimer::delay(100); // waits 0.1 seconds
}
};The problem with the blinking led example is that it's too simple. You want to make a lot more complex things then that, don't you? Ok then lets see a little more andvanced stuff, handling two buttons:
#include "mcu.h"
using namespace tm4cpp;
class Main: public Runnable
{
GpioF ioPortF; // the F port is where the leds and buttons connected to
Button buttons; // button handler
Pulser pulser; // pulser for turning on the leds for a short amount of time
public:
// this is the startup code
Main()
{
// output leds (Pin1=red, Pin3=green)
pulser.setup(&ioPortF, gpio::Pin1 | gpio::Pin3);
// Button handler setup (Pin0=right, Pin4=left)
buttons.setup(&ioPortF, gpio::Pin0 | gpio::Pin4);
buttons.setRepeatParameters(500, 200);
buttons.setEventHandler(this, &Main::onButtonPress, button::Press);
}
// this gets called when a button is pressed
void onButtonPress(uint8_t pin, uint8_t flags)
{
pulser.emitWhen((pin & gpio::Pin0), gpio::Pin1);
pulser.emitWhen((pin & gpio::Pin4), gpio::Pin3);
}
};
The code above compiles to ~5.6k with the Clang/GCC toolchain. Doesn't you miss anything? Yep, there is no runloop! It's interrupt based, the Button class handles debouncing and has repeat and longpress event support.