[精品]液晶驱动心得【ili9325】.docx

[精品]液晶驱动心得【ili9325】.docx儿点说明:1、 本文所用液晶控制器为ILI9325320*2402、 理解水平有限,如有误,请指正3、 驱动原理,每个点用2个字节表示颜色,按设定的方向刷新320*240个点,就可以显示一张图片。一、坐标原点位置的确定首先,你买回来的液晶屏,有一个位置,就是G1和S1开始的位置,我们暂且把它称为物理地址。(这个是没有办法改变的,所以我称之为物理地址,不过坐标原点还是可以改的)S720S1TFTG32O二、屏上的每一点与显示RAM的对应关系。从下图可以看岀:1、 ,所以用三个S表示一个点,720/3=2402、 纵向是320行,所以是G1到G320,所以正好是320*240320*240G32OGRAMaddressmaptableofSS==1SS==0S720...S718S717...S715S714...S712S711...S709S12...S10S9...S7S6...S4S3...S1GS=0GS=1DB17...0DB17...0DB17...0DB17...0DB17...0DB17...0DB17...0DB17...0G1G320-OOOOOh-40(W01hw-00003h--OOOECh^“OOOEDtTaOOOEEhw4OOOEFhwG2G319XMlOOh"-OOlOlh*aOOlC2hw*XX)103hw“001ECh-aOOlEDhw•OOlEEhweOOlEFhwG3G318400200hw-00201hw400202hwP0203IT“002ECtra002EDhwa002EEhwa002EFhwG4G317XXJSOOh"-00301h**0033-00303hw*003ECh・a003EDhw•003EEh*•003EFhwG5G316P0400IT•00401hw“004022•W403IT4004ECh^P04EDtT“004EEFT“004EFtrG6G315-00500,*00501护a00502hw-00503h*“005ECh・a005EDhw-005EEhwa005EFhwG7G314-00600,'00601h*a00602hw-00603hw-006ECh-a006EDhwa006EEhwa006EFhwG8G313XK)700h-a00701hw400702hwDO7O3hw4007ECh^*007EDh・•007EEhwa007EFhwG9G312"OOBOOh"a00801h-P0802tTPO8C3h”a0C8EDhw-00aEEhwa0C8EFhwG10G311-oosooir•00901hw“009C22P0903IT40C9ECh^POGEDtT•00&EEhw•009EFhw••■•••••--G311G10M3600h^al3601hwT3602tT-l3603h-al36ECh*al36EDhwal36EEhwal36EFhwG312G9•137002M3701hwM3702hw-13703hw•137EChw4137EDhw•137EEhw4137EFhwG313G8•13800"a13801hwM38C2hw-l38C3hwa138ECh*M38EDhwa138EEhwM38EFhwG314G7•13900IT-l3