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
12 lines
273 B
C
12 lines
273 B
C
// Copyright 2022 Stefan Kerkmann
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#if !defined(QMK_WAITING_TEST_BUSY_PIN)
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# define QMK_WAITING_TEST_BUSY_PIN A8
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#endif
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#if !defined(QMK_WAITING_TEST_YIELD_PIN)
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# define QMK_WAITING_TEST_YIELD_PIN A9
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#endif
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