mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-22 21:01:40 +03:00
26 lines
1.4 KiB
Markdown
26 lines
1.4 KiB
Markdown
# Furi HAL Debugging
|
|
|
|
Some Furi subsystem got additional debugging features that can be enabled by adding additional defines to firmware compilation.
|
|
Usually they are used for low level tracing and profiling or signal redirection/duplication.
|
|
|
|
|
|
## FuriHalOs
|
|
|
|
`--extra-define=FURI_HAL_OS_DEBUG` enables tick, tick suppression, idle and time flow.
|
|
|
|
There are 3 signals that will be exposed to external GPIO pins:
|
|
|
|
- `AWAKE` - `PA7` - High when system is busy with computations, low when sleeping. Can be used to track transitions to sleep mode.
|
|
- `TICK` - `PA6` - Flipped on system tick, only flips when no tick suppression in progress. Can be used to track tick skew and abnormal task scheduling.
|
|
- `SECOND` - `PA4` - Flipped each second. Can be used for tracing RT issue: time flow disturbance means system doesn't conforms Hard RT.
|
|
|
|
|
|
|
|
## FuriHalPower
|
|
|
|
`--extra-define=FURI_HAL_POWER_DEBUG` enables power subsystem mode transitions tracing.
|
|
|
|
There are 2 signals that will be exposed to external GPIO pins:
|
|
|
|
- `WFI` - `PB2` - Light sleep (wait for interrupt) used. Basically this is lightest and most non-breaking things power save mode. All function and debug should work correctly in this mode.
|
|
- `STOP` - `PC3` - STOP mode used. Platform deep sleep mode. Extremely fragile mode where most of the silicon is disabled or in unusable state. Debugging MCU in this mode is nearly impossible. |