GPIO_PinAFConfig(GPIOC,GPIO_PinSource2,GPIO_AF_SPI2); RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2,ENABLE); RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2,DISABLE); SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; SPI_InitStructure.SPI_Mode = SPI_Mode_Master; SPI_InitS...
GPIO_PinAFConfig(GPIOA,GPIO_PinSource15,GPIO_AF_SPI1); GPIO_PinAFConfig(GPIOB,GPIO_PinSource3,GPIO_AF_SPI1); GPIO_PinAFConfig(GPIOB,GPIO_PinSource4,GPIO_AF_SPI1); /* 使能 SPI 时钟 */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE); /* GPIO初始化 */ GPIO_InitStructure.GPIO_O...
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET); SPI_I2S_ReceiveData(SPI1); 程序举例: 本例是对交换机芯片KSZ8873的配置 宏定义: #define KSZ8873_SPI SPI1 #define KSZ8873_SPI_CLK RCC_APB2Periph_SPI1 #define KSZ8873_SPI_SCK_PINGPIO_Pin_3 #define KSZ8873_SPI_SCK_GPI...
void SPI_Config(void) { GPIO_InitTypeDef GPIO_InitStructure; SPI_InitTypeDef SPI_InitStructure; //1.初始化GPIO RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA|RCC_AHB1Periph_GPIOB,ENABLE); /* 连接 引脚源*/ GPIO_PinAFConfig(GPIOA,GPIO_PinSource15,GPIO_AF_SPI1); GPIO_PinAFConfig(GPIOB,GPIO_Pi...
GPIO_PinAFConfig(GPIOC, GPIO_PinSource3, GPIO_AF_SPI2); The main points of interest here are that I’m connecting TIM3’s OC1 output directly to a GPIO pin for GSCLK, and TIM4’s OC1 output for the BLANK signal. SPI Now the SPI module can be initialised: ...
GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_SPI3);} void Audio_I2S_Init(uint32_t Audio...
SPI与作为主设备的ESP连接ENSPI是串行外设接口的缩写，是一种高速的，全双工，同步的通信总线。由于SPI...
TDC-GP22只支持以下 SPI 模式: Clock Phase Bit = 1 Clock Polarity Bit = 0 在3.0V时,TDC clk最大为20MHZ,因此时钟频率要限制在20MHZ以下。SPI2挂载在APB1下,最大时钟为42/2 = 21MHZ,分频选择64即可。 TDC - GP22复位引脚低电平有效; TDC - GP22 INT 为输出引脚,高电平时表示有新的数据到来; SPI...
Pin number Pin name (function after reset)(1)P i n t y p e I / O s t r u c t u r e N o t e s Alternate functions Additional functions L Q F P 64 W L C S P 90 L Q F P 100 L Q F P 144 U F B G A 176 L Q F P 176 --11A21PE2I/O FT TRACECLK/ FSMC_...
本文绝大部分翻译自ST的官方用户手册 Description of STM32F4 HAL and LL drivers使用前注意开启GPIO时钟 __HAL_RCC_GPIOx_CLK_ENABLE()