circuitpython

Commit Graph

Author	SHA1	Message	Date
robert-hh	99221cd118	mimxrt: Fix cycle counter for time.ticks_cpu() and machine.bitstream(). Prior to this commit mp_hal_ticks_cpu() was not started properly. It only started when the code was executed with a debugger attached, except for the Teensy (i.MXRT1062) boards. As an additional fix, the CYYCNT timer is now started at boot time. Also rename mp_hal_ticks_cpu_init() to mp_hal_ticks_cpu_enable().	2021-10-25 15:50:44 +11:00
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

Author

SHA1

Message

Date

robert-hh

99221cd118

mimxrt: Fix cycle counter for time.ticks_cpu() and machine.bitstream().

Prior to this commit mp_hal_ticks_cpu() was not started properly.  It only
started when the code was executed with a debugger attached, except for the
Teensy (i.MXRT1062) boards.  As an additional fix, the CYYCNT timer is now
started at boot time.

Also rename mp_hal_ticks_cpu_init() to mp_hal_ticks_cpu_enable().

2021-10-25 15:50:44 +11:00

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

2 Commits