//液晶控制口置1操作语句宏定义 #define LCD_SCL_SET() LCD_CTRLB->BSRR|=LCD_SCL #define LCD_SDI_SET() LCD_CTRLB->BSRR|=LCD_SDI #define LCD_CS_SET() LCD_CTRLB->BSRR|=LCD_CS #define LCD_LED_SET() LCD_CTRLB->BSRR|=LCD_LED #define LCD_RS_SET() LCD_CTRLB->BSRR|=LCD_RS #define LCD_RST_SET() LCD_CTRLB->BSRR|=LCD_RST //液晶控制口置0操作语句宏定义 #define LCD_SCL_CLR() LCD_CTRLB->BSRR|=((uint32_t)LCD_SCL<<16) #define LCD_SDI_CLR() LCD_CTRLB->BSRR|=((uint32_t)LCD_SDI<<16) #define LCD_CS_CLR() LCD_CTRLB->BSRR|=((uint32_t)LCD_CS<<16) #define LCD_LED_CLR() LCD_CTRLB->BSRR|=((uint32_t)LCD_LED<<16) #define LCD_RST_CLR() LCD_CTRLB->BSRR|=((uint32_t)LCD_RST<<16) #define LCD_RS_CLR() LCD_CTRLB->BSRR|=((uint32_t)LCD_RS<<16) 逐行注释

这是一段液晶显示屏控制口的操作语句宏定义。下面是逐行注释：

//液晶控制口置1操作语句宏定义
#define LCD_SCL_SET() LCD_CTRLB->BSRR |= LCD_SCL //将SCL液晶控制口置1
#define LCD_SDI_SET() LCD_CTRLB->BSRR |= LCD_SDI //将SDI液晶控制口置1
#define LCD_CS_SET() LCD_CTRLB->BSRR |= LCD_CS //将CS液晶控制口置1
#define LCD_LED_SET() LCD_CTRLB->BSRR |= LCD_LED //将LED液晶控制口置1
#define LCD_RS_SET() LCD_CTRLB->BSRR |= LCD_RS //将RS液晶控制口置1
#define LCD_RST_SET() LCD_CTRLB->BSRR |= LCD_RST //将RST液晶控制口置1

//液晶控制口置0操作语句宏定义
#define LCD_SCL_CLR() LCD_CTRLB->BSRR |= ((uint32_t)LCD_SCL << 16) //将SCL液晶控制口置0
#define LCD_SDI_CLR() LCD_CTRLB->BSRR |= ((uint32_t)LCD_SDI << 16) //将SDI液晶控制口置0
#define LCD_CS_CLR() LCD_CTRLB->BSRR |= ((uint32_t)LCD_CS << 16) //将CS液晶控制口置0
#define LCD_LED_CLR() LCD_CTRLB->BSRR |= ((uint32_t)LCD_LED << 16) //将LED液晶控制口置0
#define LCD_RST_CLR() LCD_CTRLB->BSRR |= ((uint32_t)LCD_RST << 16) //将RST液晶控制口置0
#define LCD_RS_CLR() LCD_CTRLB->BSRR |= ((uint32_t)LCD_RS << 16) //将RS液晶控制口置0

这些宏定义通过对控制口的操作，可以实现对液晶显示屏的控制。例如，将SCL液晶控制口置1可以启动时序信号，将SDI液晶控制口置0可以向液晶屏发送数据。具体的液晶显示屏控制方法需要根据硬件电路和液晶屏的规格进行设置。