/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
*/
#include "ch.hpp"
#include "hal.h"
#include "test.h"
#include "evtimer.h"
using namespace chibios_rt;
/*
* LED blink sequences.
* NOTE: Sequences must always be terminated by a GOTO instruction.
* NOTE: The sequencer language could be easily improved but this is outside
* the scope of this demo.
*/
#define SLEEP 0
#define GOTO 1
#define STOP 2
#define BITCLEAR 3
#define BITSET 4
typedef struct {
uint8_t action;
uint32_t value;
} seqop_t;
// Flashing sequence for LED1.
static const seqop_t LED1_sequence[] =
{
{BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 200},
{BITSET, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 800},
{BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 400},
{BITSET, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 600},
{BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 600},
{BITSET, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 400},
{BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 800},
{BITSET, PAL_PORT_BIT(GPIOC_LED)},
{SLEEP, 200},
{GOTO, 0}
};
/*
* Sequencer thread class. It can drive LEDs or other output pins.
* Any sequencer is just an instance of this class, all the details are
* totally encapsulated and hidden to the application level.
*/
class SequencerThread : public EnhancedThread<128> {
private:
const seqop_t *base, *curr; // Thread local variables.
protected:
virtual msg_t Main(void) {
while (true) {
switch(curr->action) {
case SLEEP:
Sleep(curr->value);
break;
case GOTO:
curr = &base[curr->value];
continue;
case STOP:
return 0;
case BITCLEAR:
palClearPort(GPIOC, curr->value);
break;
case BITSET:
palSetPort(GPIOC, curr->value);
break;
}
curr++;
}
}
public:
SequencerThread(const seqop_t *sequence) : EnhancedThread<128>("sequencer") {
base = curr = sequence;
}
};
/*
* Tester thread class. This thread executes the test suite.
*/
class TesterThread : public EnhancedThread<256> {
protected:
virtual msg_t Main(void) {
return TestThread(&SD2);
}
public:
TesterThread(void) : EnhancedThread<256>("tester") {
}
};
/*
* Executed as an event handler at 500mS intervals.
*/
static void TimerHandler(eventid_t id) {
(void)id;
if (palReadPad(GPIOA, GPIOA_BUTTON)) {
TesterThread tester;
tester.Wait();
};
}
/*
* Application entry point.
*/
int main(void) {
static const evhandler_t evhndl[] = {
TimerHandler
};
static EvTimer evt;
struct EventListener el0;
/*
* System initializations.
* - HAL initialization, this also initializes the configured device drivers
* and performs the board-specific initializations.
* - Kernel initialization, the main() function becomes a thread and the
* RTOS is active.
*/
halInit();
System::Init();
/*
* Activates the serial driver 2 using the driver default configuration.
*/
sdStart(&SD2, NULL);
evtInit(&evt, 500); // Initializes an event timer.
evtStart(&evt); // Starts the event timer.
chEvtRegister(&evt.et_es, &el0, 0); // Registers a listener on the source.
/*
* Starts several instances of the SequencerThread class, each one operating
* on a different LED.
*/
SequencerThread blinker1(LED1_sequence);
/*
* Serves timer events.
*/
while (true)
Event::Dispatch(evhndl, Event::WaitOne(ALL_EVENTS));
return 0;
}
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/*
LUFA Library
Copyright (C) Dean Camera, 2017.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Copyright 2012 Simon Foster (simon.foster [at] inbox [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaims all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
/** \file
*
* Header file for HD44780.c.
*/
#ifndef _HD44780_H_
#define _HD44780_H_
/* Includes: */
#include <avr/io.h>
#include <util/delay.h>
#include <avr/power.h>
/* Macros: */
#define RS (1 << 4) /* PD4 */
#define ENABLE (1 << 7) /* PD7 */
#define HI4_MASK 0xF0
#define LO4_MASK 0x0F /* PD0-PD3 */
#define ALL_BITS (RS | ENABLE | LO4_MASK)
#define HI4(c) ((c & HI4_MASK) >> 4)
#define LO4(c) ((c & LO4_MASK) >> 0)
#define CMD_DISPLAY_ON 0x0C
/* Function Prototypes: */
void HD44780_Initialize(void);
void HD44780_WriteData(const uint8_t c);
void HD44780_WriteCommand(const uint8_t c);
#endif
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