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Documentation/szpi-esp32s3: Add doc for GPIO

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Basic NuttShell configuration console and GPIO(e.g. IO39 as SPI D/C) enabled.

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3
2025-03-29 10:30:56 +08:00
committed by Alan C. Assis
parent 8156211355
commit c97307b24a
1 changed files with 32 additions and 0 deletions
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Documentation/platforms/xtensa/esp32s3/boards/lckfb-szpi-esp32s3/index.rst
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@@ -297,3 +297,35 @@ Then comparing memory size with the basic "nsh" config::
nsh> free
total used free maxused maxfree nused nfree name
8785268 161516 8623752 161888 8388592 41 2 Umem
gpio
----
Basic NuttShell configuration console and GPIO enabled.
===== ========== ===============
Num Type Func / Location
===== ========== ===============
IO39 Output LCD SPI D/C
IO10 Input GP1.25-5P expansion interface 1 (left side, near the speaker)
IO11 Interrupt GP1.25-5P expansion interface 1 (left side, near the speaker)
===== ========== ===============
You can run the configuration and compilation procedure::
$ ./tools/configure.sh lckfb-szpi-esp32s3:gpio
$ make flash -j$(nproc) ESPTOOL_PORT=/dev/ttyUSB0
Then test gpio39(IO39)::
# With hardware check, the pin levels meet the expected requirements.
# Output high
nsh> echo 1 > /dev/gpio39
nsh> cat /dev/gpio39
1
# Output low
nsh> echo 0 > /dev/gpio39
nsh> cat /dev/gpio39
0