What kind of liquid crystal is commonly used in small household appliances? It's a single-chip liquid crystal chip. After purchasing another backlight, process it yourself? Or LCM?
Author:Jiao Lu Time:2021-07-20 12:29 Browse(770)
Most of them are made of segment code TN glass. The backlight comes with its own. It uses a single liquid crystal chip, which is also a part of LCM
Most of them are made of segmented TN glass. The backlight is self-contained. It uses a single-chip liquid crystal chip, which is also a part of LCM. Hope to help you. In fact, this is very simple.. CS=P2 ^ 7. cs=0； So P2 ^ 7=0;. ao=1; So P2 ^ 0=1;. The high bit of this address is 0xxx1. Because there are six X's in the middle, it doesn't matter what 111000 is in the middle. The low address is for P 0.. Because you're doing this.. The data port of LCD must be connected at P0, otherwise it will not work.. When accessing external data, address signal will be sent first.. That is to say, CS and A0 will be made into 0 and 1, colleagues will output port P0, and the difficult input data will also be output from port P0... Because P0 output twice, so if you access many of the extended data area, you have to latch the chip. But the LCD has no address.. So it doesn't matter. There's no need to pick up.. That's why there's 0x7100. Later, you can change that 00 to something else that doesn't matter... Of course, the advantage is.. The processing speed is relatively fast.. The disadvantage is.. Other mouth of P2.. At the moment of accessing LCD, there can be level conversion, which may cause other symptoms.. This depends on the actual needs of your project.. If P2 has no other use.. It's good to do that.. The same with LCD_ RS is the same... This is in the book.. In the extended section. There should be introductions... If you don't do well in the exam, you can get it...
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