Signed-off-by: Rahix <rahix@rahix.de>

When no `menu.py` is found, Epicardium will create one with the contents
of `preload/menu.py`.

Signed-off-by: Rahix <rahix@rahix.de>

Closes #26.

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

Add docs about the included modules from MicroPython and CPython stdlib.

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

Delaying BLE startup by a bit seems to resolve the lockup issue we
observed.  This might need further attention in the future.

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

Add RGB values from styleguide as easily accessible values.

Signed-off-by: Rahix <rahix@rahix.de>

Without resetting the FPU we get spurious failures in Pycardium.  These
manifest in many different forms, ranging from HardFaults and triggered
assertions to "syntax errors" in loaded scripts while said script does
not contain any.

These failures stem from the FPU still containing state from the last
loaded payload and thus sometimes corrupting stack locations where the
previous payload had floating point state.

Closes #72.

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

Co-authored-by: fleur <spacecarrot@fleurshax.net>
Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

This adds BLE a characteristic which allows to set the current time. The
time is set in milliseconds since 1.1.1970 as 64 bit value.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

This allows to set the current time in milliseconds.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

The new LEDs implementation already does gamma correction so it is
unnecessarily duplicated here now.  This commit also adds a short hello
message on the serial and sets the dim factor for the LEDs to a value
where the LED effect is more visible.

Signed-off-by: Rahix <rahix@rahix.de>

When a load fails early and core 1 continues to loop in the reset stub,
Epicardium might lock up when sending an interrupt and waiting for the
API_CALL_MEM->int_id to be reset.

Signed-off-by: Rahix <rahix@rahix.de>

Signed-off-by: Rahix <rahix@rahix.de>

swym authored 5 years ago and rahix committed 5 years ago

This commit adds 3 new API calls

- epic_file_opendir()
- epic_file_readdir()
- epic_file_unlink()

and 2 new functions in Pycardium

- os.listdir()
- os.unlink()

This changeset implements a proper lifecycle of the core 1 payload.
The implementation faces some difficulties because there is no way to
properly reset just core 1.  Instead, we chose a cooperative approach:

To perform a reset, core 1 jumps to a reset-stub and is then fed a new
IVT location which it uses to "restart" with a new payload.  The jump to
the reset-stub is either voluntary by a call to epic_exit() or epix_exec(),
or involuntary by Epicardium issuing a "reset" interrupt.  This is a
special API interrupt whose handler is pre-implemented in the API-caller
lib.

Additionally, this changeset contains support for defining which python
script Pycardium should execute on startup.  This way, scripts can issue
the start of one another using `epic_exec("script-name.py")`.

Finally, this changeset also changes the power-button behavior.
Pressing the power button will now excert the following behavior:

    - `<400 ms`: Return back to menu
    - `<1 s`: Reset card10
    - `>1 s`: Poweroff

Signed-off-by: Rahix <rahix@rahix.de>

This adds basic file transfer support over BLE.

The central provides a filename and then can transfer chunks of data
which are written to the file.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

Pressing the power button will now excert the following behavior:

- `<400 ms`: Return back to menu
- `<1 s`: Reset card10
- `>1 s`: Poweroff

Signed-off-by: Rahix <rahix@rahix.de>