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docs: Add a "Reset and Boot Sequence" reference page.

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Previously individual ports documented these aspects to varying degrees,
but most of the information is common to all ports.

In particular, this adds a canonical explanation of `boot.py` and
`main.py`.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
This commit is contained in:
Angus Gratton
2024-10-02 19:16:39 +10:00
committed by Damien George
parent cbffe61f96
commit 0e7c3901b8
15 changed files with 311 additions and 74 deletions
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8
docs/esp8266/quickref.rst
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@@ -163,10 +163,10 @@ sys.stdin.read() if it's needed to read characters from the UART(0)
while it's also used for the REPL (or detach, read, then reattach).
When detached the UART(0) can be used for other purposes.
If there are no objects in any of the dupterm slots when the REPL is
started (on hard or soft reset) then UART(0) is automatically attached.
Without this, the only way to recover a board without a REPL would be to
completely erase and reflash (which would install the default boot.py which
If there are no objects in any of the dupterm slots when the REPL is started (on
:doc:`hard or soft reset </reference/reset_boot>`) then UART(0) is automatically
attached. Without this, the only way to recover a board without a REPL would be
to completely erase and reflash (which would install the default boot.py which
attaches the REPL).
To detach the REPL from UART0, use::