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文章浏览阅读8.2w次，点赞113次，收藏303次。本文介绍STM32F103ZET6微控制器通过GPIO接口控制LED灯的方法。详细展示了如何配置GPIO引脚为推挽输出模式，并使用GPIO_SetBits与GPIO_ResetBits函数来实现LED灯的亮灭切换。
GPIO pins are the interface between the microcontroller.It's a type of pin found on circuit boards or integrate circuits that can be used for various tasks, like reading or sending digital signals. ... (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == GPIO_PIN_RESET) // Button pressed {HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET); // Turn LED ON}
文章浏览阅读4.5k次。在上述代码中，我们首先定义了一个GPIO_InitTypeDef类型的结构体变量GPIO_InitStruct，然后通过GPIO_InitStruct结构体变量来配置GPIOA的第0个引脚。最后，我们通过使用HAL_GPIO_WritePin函数将GPIOA的0号引脚设置为高电平。此时，GPIOA的0号引脚将被设置为高电平状态。
最后，我们通过使用hal_gpio_writepin函数将gpioa的0号引脚设置为高电平。此时，gpioa的0号引脚将被设置为高电平状态。请注意，如果使用stm32 hal库编写程序，则需要进行hal库的初始化及其相关配置。
GPIO functional description AN4899 8/31 AN4899 Rev 3 4 GPIO functional description STM32 GPIO can be used in a variety of configurations. Each GPIO pin can be individually configured by software in any of the following modes: • Input floating • Input pull-up • Input-pull-down • Analog • Output open-drain with pull-up or pull-down ...
The problem is - LEDs connected to pins doesn't light up. I have connected a voltmeter to the output pins and debugged a program and found out that voltage goes up a little bit (to about 0.1V) each time I do GPIO_SetBits or GPIO_ResetBits, but instantly drops down to zero afterwards.
When I enter TIM3 code A0,A1,A2,and A3 of port GPIOA are set to all 1. I achieved this by the statement GPIOA->ODR=0xffff on initialization and whenever I exit the ISR. ... /** * @brief Toggles the specified GPIO pins. * @PAram GPIOx: Where x can be (A..K) to select the GPIO peripheral.
hi ever body as you know with : GPIO_SetBits(PORT , PIN); GPIO_ResetBits(PORT , PIN); we can set & reset 1 bit of gpio,whats instruction of ser/reset 8bit,i mean is there any instruction for example set bits 0,7? or we must do this 8 time for per pin? thanks
It possible to set 2 pins high with GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) like this: GPIO_SetBis(GPIOA,PA1|PA2) The online stm32f10 peripheral library said: This parameter can be any combination of GPIO_Pin_x where x can be (0..15) But inside the GPIO_SetBits function there is: assert_param(IS_GPIO_PIN(GPIO_Pin));
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