mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-01 15:35:52 +00:00
3f5dc47296
* Use polled waiting on platforms that support it Due to context switching overhead waiting a very short amount of time on a sleeping thread is often not accurate and in fact not usable for timing critical usage i.e. in a driver. Thus we use polled waiting for ranges in the us range on platforms that support it instead. The fallback is the thread sleeping mechanism. This includes: * ARM platforms with CYCCNT register (ARMv7, ARMv8) this is incremented at CPU clock frequency * GD32VF103 RISC-V port with CSR_MCYCLE register this is incremented at CPU clock frequency * RP2040 ARMv6 port which uses the integrated timer peripheral which is incremented with a fixed 1MHz frequency * Use wait_us() instead of chSysPolledDelayX ...as it is powered by busy waiting now. * Add chibios waiting methods test bench
13 lines
273 B
C
13 lines
273 B
C
// Copyright 2022 Stefan Kerkmann
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#pragma once
|
|
|
|
#if !defined(QMK_WAITING_TEST_BUSY_PIN)
|
|
# define QMK_WAITING_TEST_BUSY_PIN A8
|
|
#endif
|
|
|
|
#if !defined(QMK_WAITING_TEST_YIELD_PIN)
|
|
# define QMK_WAITING_TEST_YIELD_PIN A9
|
|
#endif
|