teensy-core-4.1

Träd: df8b030549

Upphovsman	SHA1	Meddelande	Datum
PaulStoffregen	041bfbe9ed	Optimize micros()	5 år sedan
PaulStoffregen	bd4a9e2cfb	Make sure micros() is monotonic	5 år sedan
Defragster	aa3b459699	Removed volatile tag on dummy var systick_safe_read	6 år sedan
Defragster	b60d6774ac	Use ARM Synchronization for micros() Use: ARM Synchronization Primitives, include of arm_math.h Get systick_isr data safely without disable interrupts, uses systick_safe_read as indicator variable	6 år sedan
Defragster	8cb4de3469	expose ccmicros for testing micros() unchanged - minor systick_isr() diversion - one line added to systick_isr.	6 år sedan
Defragster	c4c5a0170f	opps - left in compared code	6 år sedan
Defragster	edbf0b4c0c	Confirm no systick_isr() interruption This saves a cycle - and checks both values to avoid _isr change of either value based on code/execution	6 år sedan
Defragster	6ba4fe8e3d	Replace micros for one using CycCnt Alternate micros() extends millis() using ARM_DWT_CYCCNT > Also makes unused_interrupt_vector() weak to allow user override like Teensy3	6 år sedan
PaulStoffregen	c4ab57c003	EventResponder, MillisTimer, yield	6 år sedan
PaulStoffregen	e687673ddf	First commit, Teensy4 work-in-progress	6 år sedan