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v2.2.0 (RP2040)
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systick.h
// THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT
#ifndef _HARDWARE_STRUCTS_SYSTICK_H
#define _HARDWARE_STRUCTS_SYSTICK_H
#include "hardware/address_mapped.h"
#include "hardware/regs/m0plus.h"
// Reference to datasheet: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf#tab-registerlist_m0plus
//
// 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/m0plus.h.
//
// Bit-field descriptions are of the form:
// BITMASK [BITRANGE] FIELDNAME (RESETVALUE) DESCRIPTION
typedef struct {
_REG_(M0PLUS_SYST_CSR_OFFSET) // M0PLUS_SYST_CSR
// SysTick Control and Status Register
// 0x00010000 [16] COUNTFLAG (0) Returns 1 if timer counted to 0 since last time this was read
// 0x00000004 [2] CLKSOURCE (0) SysTick clock source
// 0x00000002 [1] TICKINT (0) Enables SysTick exception request: +
// 0x00000001 [0] ENABLE (0) Enable SysTick counter: +
io_rw_32 csr;
_REG_(M0PLUS_SYST_RVR_OFFSET) // M0PLUS_SYST_RVR
// SysTick Reload Value Register
// 0x00ffffff [23:0] RELOAD (0x000000) Value to load into the SysTick Current Value Register...
io_rw_32 rvr;
_REG_(M0PLUS_SYST_CVR_OFFSET) // M0PLUS_SYST_CVR
// SysTick Current Value Register
// 0x00ffffff [23:0] CURRENT (0x000000) Reads return the current value of the SysTick counter
io_rw_32 cvr;
_REG_(M0PLUS_SYST_CALIB_OFFSET) // M0PLUS_SYST_CALIB
// SysTick Calibration Value Register
// 0x80000000 [31] NOREF (0) If reads as 1, the Reference clock is not provided - the...
// 0x40000000 [30] SKEW (0) If reads as 1, the calibration value for 10ms is inexact...
// 0x00ffffff [23:0] TENMS (0x000000) An optional Reload value to be used for 10ms (100Hz)...
io_ro_32 calib;
} systick_hw_t;
#define systick_hw ((systick_hw_t *)(PPB_BASE + M0PLUS_SYST_CSR_OFFSET))
static_assert(sizeof (systick_hw_t) == 0x0010, "");
#endif // _HARDWARE_STRUCTS_SYSTICK_H
address_mapped.h
systick_hw_t
Definition systick.h:26