mac-rom-simm-programmer/main.c

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/*
* main.c
*
* Created on: Nov 25, 2011
* Author: Doug
*
* Copyright (C) 2011-2020 Doug Brown
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* -----------------------------------------------------------------------------
*
* TODO: Add smarter short detection? Automatically run an electrical test at
* startup and leave everything in input mode if shorts are detected?
* I'm especially thinking about the case of SIMM control pins shorted
* together, like CS and OE, which will default to opposite output values.
* Is this even worth implementing? It's probably only useful when testing
* newly-built SIMMs. We would need to implement a protocol for this so
* the programmer software can be alerted that a short was detected.
*/
#include "hal/board.h"
#include "hardware.h"
#include "hal/parallel_bus.h"
#include "tests/simm_electrical_test.h"
#include "simm_programmer.h"
#include "led.h"
/** Main function
*
* @return Never; the main loop is an infinite loop.
*/
int main(void)
{
DisableInterrupts();
Board_Init();
LED_Init();
// If there was a brownout detected, turn on the LED momentarily
if (Board_BrownoutDetected())
{
LED_On();
DelayMS(500);
LED_Off();
}
// Initialize everything and turn on interrupts
ParallelBus_Init();
SIMMProgrammer_Init();
EnableInterrupts();
// Main loop
while (1)
{
SIMMProgrammer_Check();
}
return 0;
}