5 Commits

Author	SHA1	Message	Date
Gabriel Wang	312b9e1d4c	add compenstation (tested in Cortex-M3) to delay_us	2021-01-14 13:53:08 +00:00
Gabriel Wang	2e465bc4c2	found some racing condition and fixed them ... - fixed the racing condition - introduce a minimal systick LOAD restriction - add some comments	2021-01-11 18:50:02 +00:00
Gabriel Wang	6ec7874669	fix the issue when long time delay (>1 s), delay_us might have 25% accumulative error	2021-01-11 10:52:55 +00:00
Gabriel Wang	4fb5635605	support all cortex-m processors (including M0/M0+)	2021-01-09 21:08:09 +00:00
Gabriel Wang	ffe8ad3fca	upload content	2021-01-09 13:10:37 +00:00