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20 hours ago •
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[Bug] problem with backlight pwm (RP2040)
Describe the Bug
Hi, I'd like to create a simple backlight with a led no RGB and no dimmer (or better yet, not necessary).
I'm using a raspberry pi pico RP2040 and when I add the rule: BACKLIGHT_DRIVER = pwm
I get this error during compilation (I also specified the pin in config.h: #define BACKLIGHT_PIN GP23):
Compiling: platforms/chibios/drivers/backlight_pwm.c platforms/chibios/drivers/backlight_pwm.c:51:8: error: unknown type name 'PWMConfig'
static PWMConfig pwmCFG = {
^~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:52:5: error: field name not in record or union initializer
.frequency = BACKLIGHT_PWM_COUNTER_FREQUENCY, /* PWM clock frequency */
^
platforms/chibios/drivers/backlight_pwm.c:52:5: note: (near initialization for 'pwmCFG')
platforms/chibios/drivers/backlight_pwm.c:53:5: error: field name not in record or union initializer
.period = BACKLIGHT_PWM_PERIOD, /* PWM period in counter ticks. e.g. clock frequency is 10KHz, period is 256 ticks then t_period is 25.6ms */
^
platforms/chibios/drivers/backlight_pwm.c:53:5: note: (near initialization for 'pwmCFG')
In file included from platforms/chibios/_wait.h:20,
from platforms/wait.h:25,
from platforms/chibios/drivers/backlight_pwm.c:3:
platforms/chibios/chibios_config.h:39:45: error: excess elements in scalar initializer [-Werror]
# define BACKLIGHT_PWM_COUNTER_FREQUENCY 1000000
^~~~~~~
platforms/chibios/chibios_config.h:41:38: note: in expansion of macro 'BACKLIGHT_PWM_COUNTER_FREQUENCY'
# define BACKLIGHT_PWM_PERIOD BACKLIGHT_PWM_COUNTER_FREQUENCY / 2048
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:53:18: note: in expansion of macro 'BACKLIGHT_PWM_PERIOD'
.period = BACKLIGHT_PWM_PERIOD, /* PWM period in counter ticks. e.g. clock frequency is 10KHz, period is 256 ticks then t_period is 25.6ms */
^~~~~~~~~~~~~~~~~~~~
platforms/chibios/chibios_config.h:39:45: note: (near initialization for 'pwmCFG')
# define BACKLIGHT_PWM_COUNTER_FREQUENCY 1000000
^~~~~~~
platforms/chibios/chibios_config.h:41:38: note: in expansion of macro 'BACKLIGHT_PWM_COUNTER_FREQUENCY'
# define BACKLIGHT_PWM_PERIOD BACKLIGHT_PWM_COUNTER_FREQUENCY / 2048
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:53:18: note: in expansion of macro 'BACKLIGHT_PWM_PERIOD'
.period = BACKLIGHT_PWM_PERIOD, /* PWM period in counter ticks. e.g. clock frequency is 10KHz, period is 256 ticks then t_period is 25.6ms */
^~~~~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c: In function 'backlight_init_ports':
platforms/chibios/drivers/backlight_pwm.c:89:11: error: request for member 'channels' in something not a structure or union
pwmCFG.channels[BACKLIGHT_PWM_CHANNEL - 1].mode = PWM_OUTPUT_MODE;
^
platforms/chibios/drivers/backlight_pwm.c:37:33: error: 'PWM_OUTPUT_ACTIVE_HIGH' undeclared (first use in this function); did you mean 'PWM_OUTPUT_MODE'?
# define PWM_OUTPUT_MODE PWM_OUTPUT_ACTIVE_HIGH;
^~~~~~~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:89:55: note: in expansion of macro 'PWM_OUTPUT_MODE'
pwmCFG.channels[BACKLIGHT_PWM_CHANNEL - 1].mode = PWM_OUTPUT_MODE;
^~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:37:33: note: each undeclared identifier is reported only once for each function it appears in
# define PWM_OUTPUT_MODE PWM_OUTPUT_ACTIVE_HIGH;
^~~~~~~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:89:55: note: in expansion of macro 'PWM_OUTPUT_MODE'
pwmCFG.channels[BACKLIGHT_PWM_CHANNEL - 1].mode = PWM_OUTPUT_MODE;
^~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:90:5: error: implicit declaration of function 'pwmStart'; did you mean 'usbStart'? [-Werror=implicit-function-declaration]
pwmStart(&BACKLIGHT_PWM_DRIVER, &pwmCFG);
^~~~~~~~
usbStart
platforms/chibios/drivers/backlight_pwm.c:22:34: error: 'PWMD4' undeclared (first use in this function); did you mean 'PWM'?
# define BACKLIGHT_PWM_DRIVER PWMD4
^~~~~
platforms/chibios/drivers/backlight_pwm.c:90:15: note: in expansion of macro 'BACKLIGHT_PWM_DRIVER'
pwmStart(&BACKLIGHT_PWM_DRIVER, &pwmCFG);
^~~~~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c: In function 'backlight_set':
platforms/chibios/drivers/backlight_pwm.c:109:9: error: implicit declaration of function 'pwmDisableChannel' [-Werror=implicit-function-declaration]
pwmDisableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1);
^~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:22:34: error: 'PWMD4' undeclared (first use in this function); did you mean 'PWM'?
# define BACKLIGHT_PWM_DRIVER PWMD4
^~~~~
platforms/chibios/drivers/backlight_pwm.c:109:28: note: in expansion of macro 'BACKLIGHT_PWM_DRIVER'
pwmDisableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1);
^~~~~~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:113:9: error: implicit declaration of function 'pwmEnableChannel' [-Werror=implicit-function-declaration]
pwmEnableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1, PWM_FRACTION_TO_WIDTH(&BACKLIGHT_PWM_DRIVER, 0xFFFF, duty));
^~~~~~~~~~~~~~~~
platforms/chibios/drivers/backlight_pwm.c:113:76: error: implicit declaration of function 'PWM_FRACTION_TO_WIDTH' [-Werror=implicit-function-declaration]
pwmEnableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1, PWM_FRACTION_TO_WIDTH(&BACKLIGHT_PWM_DRIVER, 0xFFFF, duty));
^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
[ERRORS]
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gmake: *** [builddefs/common_rules.mk:376: .build/obj_split_keyboard_gabriele_vial/platforms/chibios/drivers/backlight_pwm.o] Error 1
I soled the problem changing che rule with ACKLIGHT_DRIVER = software.
Actually I'd like only a combination to turn on/off the light, but I don't understeand this problem. Anyone can help me?
Thank you so much
Keyboard Used
personal
Link to product page (if applicable)
No response
Operating System
macos 15.0.1
qmk doctor Output
Ψ QMK Doctor is checking your environment.
Ψ CLI version: 1.1.5
Ψ QMK home: /Users/gabriele/vial-qmk
Ψ Detected macOS 15.0.1 (Apple Silicon).
Ψ Userspace enabled: False
Ψ Git branch: vial
Ψ Repo version: 0.25.9
Ψ - Latest vial: 2024-09-07 20:23:41 -0500 (bb7961c3c2) -- Ported magic_force/mf34 to VIAL (#780)
Ψ - Latest upstream/master: 2024-09-28 01:58:22 +0100 (4d6337539d) -- Revert "Bump JamesIves/github-pages-deploy-action from 4.6.4 to 4.6.6" (#24450)
Ψ - Latest upstream/develop: 2024-09-28 00:58:56 +0000 (1118821178) -- Merge remote-tracking branch 'origin/master' into develop
Ψ - Common ancestor with upstream/master: 2024-06-24 12:29:30 +1000 (03e688e91f) -- Add support for userspace to docker build commands. (#23988)
Ψ - Common ancestor with upstream/develop: 2024-06-24 12:29:30 +1000 (03e688e91f) -- Add support for userspace to docker build commands. (#23988)
Ψ CLI installed in virtualenv.
Ψ All dependencies are installed.
Ψ Found arm-none-eabi-gcc version 8.5.0
Ψ Found avr-gcc version 8.5.0
Ψ Found avrdude version 8.0
Ψ Found dfu-programmer version 1.1.0
Ψ Found dfu-util version 0.11
Ψ Submodules are up to date.
Ψ Submodule status:
Ψ - lib/chibios: 2024-02-17 19:20:06 +0000 -- (be44b3305)
Ψ - lib/chibios-contrib: 2024-04-03 20:39:24 +0800 -- (77cb0a4f)
Ψ - lib/googletest: 2021-06-11 06:37:43 -0700 -- (e2239ee6)
Ψ - lib/lufa: 2022-08-26 12:09:55 +1000 -- (549b97320)
Ψ - lib/vusb: 2022-06-13 09:18:17 +1000 -- (819dbc1)
Ψ - lib/printf: 2022-06-29 23:59:58 +0300 -- (c2e3b4e)
Ψ - lib/pico-sdk: 2023-02-12 20:19:37 +0100 -- (a3398d8)
Ψ - lib/lvgl: 2022-04-11 04:44:53 -0600 -- (e19410f8)
Ψ QMK is ready to go
Is AutoHotKey / Karabiner installed
- [ ] AutoHotKey (Windows)
- [X] Karabiner (macOS)
Other keyboard-related software installed
No response
Additional Context
No response
