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Diffstat (limited to 'lib/pico-sdk/rp2040/hardware/structs/systick.h')
-rw-r--r-- | lib/pico-sdk/rp2040/hardware/structs/systick.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/pico-sdk/rp2040/hardware/structs/systick.h b/lib/pico-sdk/rp2040/hardware/structs/systick.h new file mode 100644 index 00000000..ee878719 --- /dev/null +++ b/lib/pico-sdk/rp2040/hardware/structs/systick.h @@ -0,0 +1,57 @@ +// THIS HEADER FILE IS AUTOMATICALLY GENERATED -- DO NOT EDIT + +/** + * Copyright (c) 2024 Raspberry Pi Ltd. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef _HARDWARE_STRUCTS_SYSTICK_H +#define _HARDWARE_STRUCTS_SYSTICK_H + +/** + * \file rp2040/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 + |