v2.0.0
systick.h
1// THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT
2
8#ifndef _HARDWARE_STRUCTS_SYSTICK_H
9#define _HARDWARE_STRUCTS_SYSTICK_H
10
15#include "hardware/address_mapped.h"
16#include "hardware/regs/m0plus.h"
17
18// Reference to datasheet: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf#tab-registerlist_m0plus
19//
20// The _REG_ macro is intended to help make the register navigable in your IDE (for example, using the "Go to Definition" feature)
21// _REG_(x) will link to the corresponding register in hardware/regs/m0plus.h.
22//
23// Bit-field descriptions are of the form:
24// BITMASK [BITRANGE] FIELDNAME (RESETVALUE) DESCRIPTION
25
26 typedef struct {
27 _REG_(M0PLUS_SYST_CSR_OFFSET) // M0PLUS_SYST_CSR
28 // SysTick Control and Status Register
29 // 0x00010000 [16] COUNTFLAG (0) Returns 1 if timer counted to 0 since last time this was read
30 // 0x00000004 [2] CLKSOURCE (0) SysTick clock source
31 // 0x00000002 [1] TICKINT (0) Enables SysTick exception request: +
32 // 0x00000001 [0] ENABLE (0) Enable SysTick counter: +
33 io_rw_32 csr;
34
35 _REG_(M0PLUS_SYST_RVR_OFFSET) // M0PLUS_SYST_RVR
36 // SysTick Reload Value Register
37 // 0x00ffffff [23:0] RELOAD (0x000000) Value to load into the SysTick Current Value Register...
38 io_rw_32 rvr;
39
40 _REG_(M0PLUS_SYST_CVR_OFFSET) // M0PLUS_SYST_CVR
41 // SysTick Current Value Register
42 // 0x00ffffff [23:0] CURRENT (0x000000) Reads return the current value of the SysTick counter
43 io_rw_32 cvr;
44
45 _REG_(M0PLUS_SYST_CALIB_OFFSET) // M0PLUS_SYST_CALIB
46 // SysTick Calibration Value Register
47 // 0x80000000 [31] NOREF (0) If reads as 1, the Reference clock is not provided - the...
48 // 0x40000000 [30] SKEW (0) If reads as 1, the calibration value for 10ms is inexact...
49 // 0x00ffffff [23:0] TENMS (0x000000) An optional Reload value to be used for 10ms (100Hz)...
50 io_ro_32 calib;
51} systick_hw_t;
52
53#define systick_hw ((systick_hw_t *)(PPB_BASE + M0PLUS_SYST_CSR_OFFSET))
54static_assert(sizeof (systick_hw_t) == 0x0010, "");
55
56#endif // _HARDWARE_STRUCTS_SYSTICK_H
57
address_mapped.h
systick_hw_t
Definition: systick.h:26