io_conf.pin_bit_mask = GPIO_INPUT_PIN_SEL; // 配置GPIO_IN寄存器 io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE; io_conf.pull_up_en = GPIO_PULLUP_ENABLE; // 内部上拉 gpio_config(&io_conf); // 最后配置使能 } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15....
Re: gpio_config() call set PIN low immediately with PULLUP enabled by boarchuz » Fri Oct 18, 2024 4:19 pm You have set mode to GPIO_MODE_OUTPUT which will enable output. The level is determined by whatever is in the GPIO's output level register at that point in time. I assum...
} GPIO_PULL_EN; 5.GPIO_PULL After one GPIO pin is configured as pull enable, it could be configured as pull-up or pull-down. It depends on the device connecting to the GPIO pin. (下面都是英文了,翻译太简单了) /* GPIO PULL-UP/PULL-DOWN*/ typedefenum{ GPIO_PULL_UNSUPPORTED = -1,...
The port pull-up register controls the pull-up resister enable/disable of each port group. When the corresponding bit is 0, the pull-up resister of the pin is enabled. When 1, the pull-up resister is disabled. If the port pull-up register is enabled then the pull-up resisters work wi...
raspi-gpio set 20 pu Enable GPIO20 ~50k in-pad pull up raspi-gpio set 20 pd Enable GPIO20 ~50k in-pad pull down raspi-gpio set 20 op Set GPIO20 to be an output raspi-gpio set 20 dl Set GPIO20 to output low/zero (must already be set as an output) ...
GPIO_PULL_EN_DEFAULT = GPIO_PULL_ENABLE, } GPIO_PULL_EN; 5.GPIO_PULL After one GPIO pin is configured as pull enable, it could be configured as pull-up or pull-down. It depends on the device connecting to the GPIO pin. (下面都是英文了,翻译太简单了) ...
__HAL_RCC_GPIOA_CLK_ENABLE();GPIO_InitStruct.Pin = GPIO_PIN_0;GPIO_InitStruct.Mode = GPIO_...
GPIO_PUPD_NONE(无上下拉)GPIO_PUPD_PULLUP(上拉)GPIO_PUPD_PULLDOWN(下拉)形参pin为pin脚号，实参为GPIO_PIN_x(x=0..15)。(2) 设置 AF 类型 gpio_af_set 当需要将GPIO设置为复用模式时，除了调用gpio_mode_se设置GPIO模式外，还需要调用函数gpio_af_set进行复用类型的设置。gpio_af_set函数原型为：voi...
io_conf.pull_up_en=GPIO_PULLUP_ENABLE; gpio_config(&io_conf); gpio_set_intr_type(39,GPIO_INTR_ANYEDGE); gpio_install_isr_service(0); //hook isr handler for HALL gpio pin gpio_isr_handler_add(39,gpio_isr_handler,(void*)39); ...
(gpio_pull_up(gpio_pin)) { pr_err("Failed to enable gpio pull-up\n"); return -EIO; } pr_info("GPIO %d pull-up enabled\n", gpio_pin); return 0; } static void __exit gpio_pullup_exit(void) { gpio_free(gpio_pin); pr_info("GPIO pull-up disabled\n"); } module_init(...