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Documentation/szpi-esp32s3: Add doc for LEDC(PWM)

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Basic NuttShell configuration console and LEDC(PWM) enabled.

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3
2025-03-26 14:38:30 +08:00
committed by Lup Yuen Lee
parent 6165fcc6c8
commit 9206abc28a
1 changed files with 27 additions and 0 deletions
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Documentation/platforms/xtensa/esp32s3/boards/lckfb-szpi-esp32s3/index.rst
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@@ -248,3 +248,30 @@ Then test gpio2(pin9(P2) of PCA9557)::
nsh> echo 1 > /dev/gpio2
nsh> cat /dev/gpio2
1
pwm
---
Basic NuttShell configuration console and LEDC(PWM) enabled.
You can run the configuration and compilation procedure::
$ ./tools/configure.sh lckfb-szpi-esp32s3:pwm
$ make flash -j$(nproc) ESPTOOL_PORT=/dev/ttyUSB0
Then test LEDC(PWM) with pin42(backlight of LCD)::
# Backlight 0%
nsh> pwm -d 100
pwm_main: starting output with frequency: 100 duty: 0000ffff
pwm_main: stopping output
# Backlight 10%
nsh> pwm -d 90
pwm_main: starting output with frequency: 100 duty: 0000e666
pwm_main: stopping output
# Backlight 100%
nsh> pwm -d 0
pwm_main: starting output with frequency: 100 duty: 00000000
pwm_main: stopping output