将dat所指向的地址上存放的数值左移i位，然后只保留bit7的bit值，其余bit位都清零，之后的值赋给LCD_DATA。例如，假设i的值为2，dat指向变量a，且a的值为254，转成二进制形式就是 11111110，把它左移2位就变成 11111000，接着只保留bit7的值，其余bit位都清零，得到 10000000，把这个数赋给LCD_...
(0 << CONTROL_CONF_LCD_DATA0_CONF_LCD_DATA0_MMODE_SHIFT) | (1 << CONTROL_CONF_LCD_DATA0_CONF_LCD_DATA0_PUDEN_SHIFT) | (0 << CONTROL_CONF_LCD_DATA0_CONF_LCD_DATA0_PUTYPESEL_SHIFT)| (1 << CONTROL_CONF_LCD_DATA0_CONF_LCD_DATA0_RXACTIVE_SHIFT) | (0 << CONTROL_CO...
写入数据，后面的0x00是调用的字符地址
After MX7D_PAD_LCD_DATA04 and MX7D_PAD_LCD_DATA08 are multiplexed as GPIO functions, the state of the gpio pin cannot be changed through the gpio_set_value function. After the other MX7D_PAD_LCD_DATAn is multiplexed as the gpio function, the state of the gpio pin can ...
谢谢楼主工程师
12864的初始化 初始化函数
MX6UL_PAD_LCD_DATA21__LCDIF_DATA21 0x79 MX6UL_PAD_LCD_DATA22__LCDIF_DATA22 0x79 MX6UL_PAD_LCD_DATA23__LCDIF_DATA23 0x79 >; }; It seems like the bit controls are frozen. It works fine though when using LCD_DATA01 through LCD_DATA07. Unfortunately I cant use these lines (0-...
当然是一位，BUSY=(bit)(LCD_DATA&0x80);当LCD_DATA&0x80不为0时BUSY=1，否则BUSY=0
外接可显示！屏供电3.3v正常，信号线有1点几伏，也正常，就LCD_EDIDCLK和LCD_EDIDDATA有3.3伏不...
本发明解决了现有技术中在实现LCD画中画功能时,数据读取速度和效率较低的问题. The present invention solves the prior art in achieving the LCD PIP function, the data read speed, and the problem of low efficiency.CN施景华梁远亮赵冰茹