1 // THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT 2 3 /** 4 * Copyright (c) 2024 Raspberry Pi Ltd. 5 * 6 * SPDX-License-Identifier: BSD-3-Clause 7 */ 8 #ifndef _HARDWARE_STRUCTS_SYSTICK_H 9 #define _HARDWARE_STRUCTS_SYSTICK_H 10 11 /** 12 * \file rp2350/systick.h 13 */ 14 15 #include "hardware/address_mapped.h" 16 #include "hardware/regs/m33.h" 17 18 // Reference to datasheet: https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf#tab-registerlist_m33 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/m33.h. 22 // 23 // Bit-field descriptions are of the form: 24 // BITMASK [BITRANGE] FIELDNAME (RESETVALUE) DESCRIPTION 25 26 #if defined(__riscv) && PICO_FORBID_ARM_HEADERS_ON_RISCV 27 #error "Arm header included in a RISC-V build with PICO_FORBID_ARM_HEADERS_ON_RISCV=1" 28 #endif 29 30 typedef struct { 31 _REG_(M33_SYST_CSR_OFFSET) // M33_SYST_CSR 32 // SysTick Control and Status Register 33 // 0x00010000 [16] COUNTFLAG (0) Returns 1 if timer counted to 0 since last time this was read 34 // 0x00000004 [2] CLKSOURCE (0) SysTick clock source 35 // 0x00000002 [1] TICKINT (0) Enables SysTick exception request: + 36 // 0x00000001 [0] ENABLE (0) Enable SysTick counter: + 37 io_rw_32 csr; 38 39 _REG_(M33_SYST_RVR_OFFSET) // M33_SYST_RVR 40 // SysTick Reload Value Register 41 // 0x00ffffff [23:0] RELOAD (0x000000) Value to load into the SysTick Current Value Register... 42 io_rw_32 rvr; 43 44 _REG_(M33_SYST_CVR_OFFSET) // M33_SYST_CVR 45 // SysTick Current Value Register 46 // 0x00ffffff [23:0] CURRENT (0x000000) Reads return the current value of the SysTick counter 47 io_rw_32 cvr; 48 49 _REG_(M33_SYST_CALIB_OFFSET) // M33_SYST_CALIB 50 // SysTick Calibration Value Register 51 // 0x80000000 [31] NOREF (0) If reads as 1, the Reference clock is not provided - the... 52 // 0x40000000 [30] SKEW (0) If reads as 1, the calibration value for 10ms is inexact... 53 // 0x00ffffff [23:0] TENMS (0x000000) An optional Reload value to be used for 10ms (100Hz)... 54 io_ro_32 calib; 55 } systick_hw_t; 56 57 #define systick_hw ((systick_hw_t *)(PPB_BASE + M33_SYST_CSR_OFFSET)) 58 #define systick_ns_hw ((systick_hw_t *)(PPB_NONSEC_BASE + M33_SYST_CSR_OFFSET)) 59 static_assert(sizeof (systick_hw_t) == 0x0010, ""); 60 61 #endif // _HARDWARE_STRUCTS_SYSTICK_H 62 63
