CKPOL (Clock Polarity) = CPOL = POL = Polarity = (时钟)极性 CKPHA (Clock Phase) = CPHA = PHA = Phase = (时钟)相位 SCK=SCLK=SPI的时钟 Edge=边沿,即时钟电平变化的时刻,即上升沿(rising edge)或者下降沿(falling edge) 对于一个时钟周期内,有两个edge,分别称为: Leading edge=前一个边沿=第...
支持的参数如下:* SPI_PHASE_1EDGE SCK引脚的第1个边沿捕获传输的第个数据* SPI_PHASE_2EDGE SCK引脚的第2个边沿捕获传输的第1个* * _CLKPolarity 时钟极性,支持的参数如下:* SPI_POLARITY_LOW SCK在空闲状态处于低电平* SPI_POLARITYHIGH SCK引脚在空闲状态处于高电平** 值: 无***/void bsp...
int main(void){ /* peripheral clock enable */ rcu_config(); /* GPIO config */gpio_config(); /* SPI config */ spi_config(); while(1){ SET_SPI0_NSS_LOW /* wait for transmit complete */ while(send_n < arraysize){ while(RESET == spi_i2s_flag_get(SPI0, SPI_FLAG_TBE)); s...
简单总结如下: (1) CKPOL (Clock Polarity) = CPOL = POL = Polarity = (时钟)极性 (2) CKPHA (Clock Phase) = CPHA = PHA = Phase = (时钟)相位 (3) SCK=SCLK=SPI的时钟 (4) Edge=边沿,即时钟电平变化的时刻,即上升沿(rising edge)或者下降沿(falling edge) 对于一个时钟周期内,有两个edge,...
(1) CKPOL (Clock Polarity) = CPOL = POL = Polarity = (时钟)极性 (2) CKPHA (Clock Phase) = CPHA = PHA = Phase = (时钟)相位 (3) SCK=SCLK=SPI的时钟 (4) Edge=边沿,即时钟电平变化的时刻,即上升沿(rising edge)或者下降沿(falling edge) ...
(1) CKPOL (Clock Polarity) = CPOL = POL = Polarity = (时钟)极性 (2) CKPHA (Clock Phase) = CPHA = PHA = Phase = (时钟)相位 (3) SCK=SCLK=SPI的时钟 (4) Edge=边沿,即时钟电平变化的时刻,即上升沿(rising edge)或者下降沿(falling edge) ...
voidMX_SPI1_Init(void){hspi1.Instance=SPI1;hspi1.Init.Mode=SPI_MODE_MASTER;//主机模式hspi1.Init.Direction=SPI_DIRECTION_2LINES;//全双工hspi1.Init.DataSize=SPI_DATASIZE_8BIT;//数据位为八位hspi1.Init.CLKPolarity=SPI_POLARITY_LOW;//CPOL=0hspi1.Init.CLKPhase=SPI_PHASE_1EDGE;//CPHA...
(1) CKPOL (Clock Polarity) = CPOL = POL = Polarity = (时钟)极性 (2) CKPHA (Clock Phase) = CPHA = PHA = Phase = (时钟)相位 (3) SCK=SCLK=SPI的时钟 (4) Edge=边沿,即时钟电平变化的时刻,即上升沿(rising edge)或者下降沿(falling edge) ...
嵌入式开发之davinci--- spi 中的时钟极性CPOL和相位CPHA,PI的极性Polarity和相位Phase,最常见的写法是CPOL和CPHA,不过也有一些其他写法,简单总结如下:(1)CKPOL(ClockPolarity)=CPOL=POL=Polarity=(时钟)极性(2)CKPHA(ClockPhase)=CPHA=...
(1) CKPOL (Clock Polarity) = CPOL = POL = Polarity = (时钟)极性 (2) CKPHA (Clock Phase) = CPHA = PHA = Phase = (时钟)相位 (3) SCK=SCLK=SPI的时钟 (4) Edge=边沿,即时钟电平变化的时刻,即上升沿(rising edge)或者下降沿(falling edge) ...