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v2.2.0 (RP2040)
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watchdog.h
// THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT
#ifndef _HARDWARE_STRUCTS_WATCHDOG_H
#define _HARDWARE_STRUCTS_WATCHDOG_H
#include "hardware/address_mapped.h"
#include "hardware/regs/watchdog.h"
// Reference to datasheet: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf#tab-registerlist_watchdog
//
// The _REG_ macro is intended to help make the register navigable in your IDE (for example, using the "Go to Definition" feature)
// _REG_(x) will link to the corresponding register in hardware/regs/watchdog.h.
//
// Bit-field descriptions are of the form:
// BITMASK [BITRANGE] FIELDNAME (RESETVALUE) DESCRIPTION
typedef struct {
_REG_(WATCHDOG_CTRL_OFFSET) // WATCHDOG_CTRL
// Watchdog control
// 0x80000000 [31] TRIGGER (0) Trigger a watchdog reset
// 0x40000000 [30] ENABLE (0) When not enabled the watchdog timer is paused
// 0x04000000 [26] PAUSE_DBG1 (1) Pause the watchdog timer when processor 1 is in debug mode
// 0x02000000 [25] PAUSE_DBG0 (1) Pause the watchdog timer when processor 0 is in debug mode
// 0x01000000 [24] PAUSE_JTAG (1) Pause the watchdog timer when JTAG is accessing the bus fabric
// 0x00ffffff [23:0] TIME (0x000000) Indicates the number of ticks / 2 (see errata RP2040-E1)...
io_rw_32 ctrl;
_REG_(WATCHDOG_LOAD_OFFSET) // WATCHDOG_LOAD
// Load the watchdog timer.
// 0x00ffffff [23:0] LOAD (0x000000)
io_wo_32 load;
_REG_(WATCHDOG_REASON_OFFSET) // WATCHDOG_REASON
// Logs the reason for the last reset.
// 0x00000002 [1] FORCE (0)
// 0x00000001 [0] TIMER (0)
io_ro_32 reason;
// (Description copied from array index 0 register WATCHDOG_SCRATCH0 applies similarly to other array indexes)
_REG_(WATCHDOG_SCRATCH0_OFFSET) // WATCHDOG_SCRATCH0
// Scratch register
// 0xffffffff [31:0] SCRATCH0 (0x00000000)
io_rw_32 scratch[8];
_REG_(WATCHDOG_TICK_OFFSET) // WATCHDOG_TICK
// Controls the tick generator
// 0x000ff800 [19:11] COUNT (-) Count down timer: the remaining number clk_tick cycles...
// 0x00000400 [10] RUNNING (-) Is the tick generator running?
// 0x00000200 [9] ENABLE (1) start / stop tick generation
// 0x000001ff [8:0] CYCLES (0x000) Total number of clk_tick cycles before the next tick
io_rw_32 tick;
} watchdog_hw_t;
#define watchdog_hw ((watchdog_hw_t *)WATCHDOG_BASE)
static_assert(sizeof (watchdog_hw_t) == 0x0030, "");
#endif // _HARDWARE_STRUCTS_WATCHDOG_H
address_mapped.h
watchdog_hw_t
Definition watchdog.h:26