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atsamd: Initial support for SAMD51

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2019-01-14 18:21:50 -05:00
parent f6ce875818
commit 8cd83b4c2d
17 changed files with 434 additions and 61 deletions
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13
src/atsamd/main.c
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@@ -1,14 +1,14 @@
// Main starting point for SAMD21 boards
// Main starting point for SAMD boards
//
// Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net>
// Copyright (C) 2018-2019 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 "internal.h" // WDT
#include "sched.h" // sched_main
DECL_CONSTANT(MCU, "samd21g");
DECL_CONSTANT(MCU, CONFIG_MCU);
/****************************************************************
@@ -25,8 +25,13 @@ DECL_TASK(watchdog_reset);
void
watchdog_init(void)
{
#if CONFIG_MACH_SAMD21
WDT->CONFIG.reg = WDT_CONFIG_PER_16K; // 500ms timeout
WDT->CTRL.reg = WDT_CTRL_ENABLE;
#elif CONFIG_MACH_SAMD51
WDT->CONFIG.reg = WDT_CONFIG_PER(6); // 500ms timeout
WDT->CTRLA.reg = WDT_CTRLA_ENABLE;
#endif
}
DECL_INIT(watchdog_init);