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Author SHA1 Message Date
Damien George
7408ca1d78 mimxrt: Improve ticks and sleep functions using GPT. 
SysTick cannot wake the CPU from WFI/WFE so a hardware timer is needed to
keep track of ticks/delay (similar to the nrf port).

Fixes issue #7234.

Signed-off-by: Damien George <damien@micropython.org>
 2021-05-18 22:36:32 +10:00