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// Main starting point for SAMD21 boards
//
// Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include "command.h" // DECL_CONSTANT
#include "samd21.h" // SystemInit
#include "sched.h" // sched_main
DECL_CONSTANT(MCU, "samd21g");
/****************************************************************
* watchdog handler
****************************************************************/
void
watchdog_reset(void)
{
WDT->CLEAR.reg = 0xa5;
}
DECL_TASK(watchdog_reset);
void
watchdog_init(void)
{
WDT->CONFIG.reg = WDT_CONFIG_PER_16K; // 500ms timeout
WDT->CTRL.reg = WDT_CTRL_ENABLE;
}
DECL_INIT(watchdog_init);
/****************************************************************
* misc functions
****************************************************************/
void
command_reset(uint32_t *args)
{
NVIC_SystemReset();
}
DECL_COMMAND_FLAGS(command_reset, HF_IN_SHUTDOWN, "reset");
// Main entry point
int
main(void)
{
SystemInit();
sched_main();
return 0;
}
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