• State Verified Answer
  • Replies 7 replies
  • Subscribers 72 subscribers
  • Views 334 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 338262
Options

Pull up P0.08

xuezhi_zed

Hi, 

I am trying to pull up P0.08 as an enable pin for this switch TPS7A0518 

I use the following code and verified on development board 

gpio_pin_configure(gpio0_dev, GPIO_0_TPS_EN, GPIO_OUTPUT);
gpio_pin_set(gpio0_dev, GPIO_0_TPS_EN, 1);

However, when I move to customized board, it does not work. I am providing a 1.8V source to VCC_NRF 

Anything else I should check or correct? 

Thank you

  • 0
    Hello Zhang,
    Not sure how you are configuring the settings for your custom board, but I suspect that gpio0_dev isn't working on the same gpio on your custom board as it is on the development board.
    So check which gpio is used by the gpio0_dev is using or do the same configuration writes directly to gpio0.8 to make sure you set the right pin.
    Best regards
    Asbjørn
  • 0 in reply to Asbjørn

    Hi Asbjørn, thank you for the reply! 
    Can you show me any sample on how to "do the same configuration writes directly to gpio0.8 to make sure you set the right pin" 

    I attached my schematic as reference 


    Also parts of my overlay file,  can this issue due to disable some features? but I did the same thing with development board

    I use the same overlay file to test on my customized PCB and development board

    &i2c0 {	status = "disabled";};
&spi0 {	status = "disabled";};
&i2c1 {	status = "disabled";};
&qspi {	status = "disabled";};
&led1 {	status = "disabled";};
&led3 {	status = "disabled";};

  • +1

    Hello,

    I'd recommend you to have a look at the documentation here:

    https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/config_and_build/hardware/use_gpio_pin_directly.html

    You should aslo be able to check the GPIO names with the correct absolute pin number, you can use the NRF_GPIO_PIN_MAP helper macro in nrf_gpio.h.

    Best regards

    Asbjørn

  • 0 in reply to Asbjørn

    i have this error 

    devicetree error: D:/WOS/IMU/IMU_16JAN/nrf52840dk_nrf52840.overlay:43 (column 1): parse error: undefined node label 'gpiote0'
    -- In: D:/WOS/IMU/IMU_16JAN/build/zephyr, command: C:/ncs/toolchains/c57af46cb7/opt/bin/python.exe;C:/ncs/v2.5.2/zephyr/scripts/dts/gen_defines.py;--dts;D:/WOS/IMU/IMU_16JAN/build/zephyr/zephyr.dts.pre;--dtc-flags;'-Wno-unique_unit_address_if_enabled';--bindings-dirs;C:/ncs/v2.5.2/nrf/dts/bindings;C:/ncs/v2.5.2/zephyr/dts/bindings;--header-out;D:/WOS/IMU/IMU_16JAN/build/zephyr/include/generated/devicetree_generated.h.new;--dts-out;D:/WOS/IMU/IMU_16JAN/build/zephyr/zephyr.dts.new;--edt-pickle-out;D:/WOS/IMU/IMU_16JAN/build/zephyr/edt.pickle;--vendor-prefixes;C:/ncs/v2.5.2/nrf/dts/bindings/vendor-prefixes.txt;--vendor-prefixes;C:/ncs/v2.5.2/zephyr/dts/bindings/vendor-prefixes.txt
    CMake Error at C:/ncs/v2.5.2/zephyr/cmake/modules/dts.cmake:279 (message):
    gen_defines.py failed with return code: 1
    Call Stack (most recent call first):
    C:/ncs/v2.5.2/zephyr/cmake/modules/zephyr_default.cmake:129 (include)
    C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
    C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
    CMakeLists.txt:2 (find_package)

    but i comment out that part and it works!! just FYI and hopefully understand it better

Related
Terms of service