Forum Posts
Resolved! How to configure pull up/down property of pin in dts
Hi I use GT9147 touch IC on my stm32mp157 board. I found the stm32mp157c-ev1.dts use same chip. But the ev1 use GPIO14 of stmfx GPIO expander chip as TP_INT signal. The GPIO14 of stmfx configure as below code.486 hog_pins: hog...
why the system workbench use stklink?
Hi, I use system workbench to debug example project. The serial port and ethernet over usb are recognized by system workbench. Now, the debuger step is using openocd to connect target board. I follow the below link to setting the debug configuratio...
How to add modified device tree with PWM control backlight
My circuit board USES PE6 to control the backlight, but it cannot be adjusted. How to modify the device tree of TIM15_CH2.EV1 is not regulated.EV1:panel_backlight: panel-backlight {compatible = "gpio-backlight";gpios = <&gpiod 13 GPIO_ACTIVE_LOW>;def...
STM32MP157 software problem
The software of the company is developed based on QT framework. Due to some limitations of the framework, opengles cannot be better used. Can you use linuxfb to run QT program?I can't find the /dev/fb0 interface:grinning_face:
M4 GPIO realistic maximal frequency ?
How long does it take (approx) to rise or lower a GPIO pin fix configured to the M4 in the STM32MP157c, after issuing the command in the M4 code ? On our native STM32F409 board it takes around 10ns. I'm afraid the STM32MP1xx is much slower right ? Re...
I have an STM32MP157-DK1 and want to update the standard distribution with gcc, g++ and other packages. How is that done?
I note that some executables from an rPi work as is on the STM32MP1 board.
Precompiled qt-example-image available?
Hey all,I'm having some difficulties compiling the example QT image that's a part of the distribution package. As I get them ironed out, I'd like to start setting up my QT environment etc.I was wondering if there were any available precompiled images...