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rp2: Use pico-sdk alarm pool instead of soft timer for sleep.

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Stop using soft timer for `mp_wfe_or_timeout`.  Now uses the alarm pool
again as issues with this code have been fixed.  This resolves the "sev"
issue that stops the RP2350 going idle.

Also, change the lightsleep code to use the hardware timer library and
alarm 1, as alarm 2 is used by and soft timers and alarm 3 is used by the
alarm pool.

Signed-off-by: Peter Harper <peter.harper@raspberrypi.com>
This commit is contained in:
Peter Harper
2024-09-30 13:05:22 +01:00
committed by Damien George
parent a05766f47b
commit ee2c78cd97
3 changed files with 23 additions and 27 deletions
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3
ports/rp2/mpconfigport.h
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@@ -198,8 +198,9 @@
#define MICROPY_PY_LWIP_SOCK_RAW (MICROPY_PY_LWIP)
// Hardware timer alarm index. Available range 0-3.
// Number 3 is currently used by pico-sdk (PICO_TIME_DEFAULT_ALARM_POOL_HARDWARE_ALARM_NUM)
// Number 3 is currently used by pico-sdk alarm pool (PICO_TIME_DEFAULT_ALARM_POOL_HARDWARE_ALARM_NUM)
#define MICROPY_HW_SOFT_TIMER_ALARM_NUM (2)
#define MICROPY_HW_LIGHTSLEEP_ALARM_NUM (1)
// fatfs configuration
#define MICROPY_FATFS_ENABLE_LFN (2)