WebApr 9, 2024 · 使用标准库实现STM32F103开发板的串口通信功能. 在使用串口通信功能之前,我们需要对串口进行初始化配置。. 在本文中,我们将使用USART1模块进行串口通信。. 以下是串口初始化配置的代码:. 在上述代码中,我们首先使能了USART1的时钟,并配置了USART1的GPIO引脚 ... WebOct 27, 2024 · \$\begingroup\$ Actually I verified this in the HAL source: both HAL_I2S_Transmit and HAL_I2S_Receive expect the number of "words" as the size. Words being either 16 bits or 32 bits depending on the configuration. In fact, the HAL code first multiplies the size by 2 when in 24 or 32 bits mode before sending or receiving the 16 …
STM32 GPIO mode and pull - ST Community
WebApr 26, 2024 · __GPIOA_CLK_ENABLE (); __USART1_CLK_ENABLE (); GPIO_InitTypeDef GPIO_InitStruct; GPIO_InitStruct.Pin = GPIO_PIN_9; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; HAL_GPIO_Init (GPIOA, &GPIO_InitStruct); … WebJul 6, 2024 · GPIOInit () runs both ConfigGPIOA and ConfigGPIOE. CS_LOW () and CS_HIGH () are macros that just pull the chip select up and down. I've watched the chip select line on the oscilloscope and it does switch. is anchor a verb
GPIO的库函数 - nasduc - 博客园
WebGPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; Overkill for a pin that might transition at 1 MHz and is connected to a transceiver. Expand Post. Like Liked Unlike. … WebNov 22, 2024 · 1 PA0 should also be configured as an alternate function, since it is used as timer input. And printf in the interrupt hander is a bad idea, use LEDs or write a single character to the output stream – Flexz Nov 22, 2024 at 17:19 Add a comment 0 0 3 Know someone who can answer? Share a link to this question via email, Twitter, or Facebook. WebEach GPIO port has four 32-bit configuration registers (GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR and GPIOx_PUPDR), two 32-bit data registers (GPIOx_IDR and GPIOx_ODR), a 32-bit set/reset register (GPIOx_BSRR), a 32-bit locking register (GPIOx_LCKR) and two 32-bit alternate function selection register (GPIOx_AFRH and … is anchor butter grass fed