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修改记录详细记录
20190306
增加电子纸 IL3820驱动。
20190227
修改:
1 增加电纸书驱动91874。
2 修改LCD硬件接口总线,增加一条sta管脚。
备忘
1 91874的通信,每个字节都需要操作CS,很特殊,暂时放在本驱动,先不修改LCD BUS。
2 91874有一根BUSY管脚,这个管脚,应该是属于LCD 硬件接口层的。放在驱动不是很合适。
3 电子纸刷新很慢,最好能改为:指定显示区域,填充显示缓冲,refresh。三步式。
等评估后,将所有LCD的驱动接口改为支持三步式。
/* 碎碎念 */
s32 bus_lcd_write_data(DevLcdBusNode *node, u8 *data, u32 len)
data定义是一个u8的指针
彩屏的LCD BUS,用U16
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