用PT361G型驱动板代替LTA320WT-L05和HT170E01驱动板的方法
根据相关资料LTA320WT-L05和HT170E01这两个液晶屏都采用5V供电,都是LVDS接口,都可以用PT361G型驱动板来驱动,屏线一端与PT361G的LVDS端口插针对应接好后,另一端就是默认的常规双8位线序。而HT170E01正好是双8位的接口,与你选择的屏线完全吻合,所以就能正常显示了。通过查阅屏参可以看出,LTA320WT-L05的屏线接口外形虽然与HT170E01 一样,但是却是一个单8位的结构,所以线序就与双8位的大不相同了。只有对线序进行相应调整,即俗称的“跳线”,才能使LT320WT-L05正常显示,单纯写入程序是远远不够的。为了看得更加直观,把这两种接口做个表格,如表所示,可以参考表格里面的定义,进行相应跳线。
引脚 | HT170E01 | LT320WT-L05 |
1 | LVDS ODD O- SIGNAL | No Connection |
2 | LVDS ODD 0+ SIGNAL | No Connection |
3 | LVDS ODD l- SIGNAL | No Connection |
4 | LVDS ODD l+ SIGNAL | GROUND |
5 | LVDS ODD 2- SIGNAL | RXINO- LVDS Channel O negative |
6 | LVDS ODD 2+ SIGNAL | RXINO+ LVDS Channel O positive |
7 | GROUND | GROUND |
8 | LVDS ODD CK- SIGNAl, | RXINl- LVDS Channel l negative |
9 | LVDS ODD CLOCK+ SIGNAL | RXINl+ LVDS Channel l positive |
10 | LVDS ODD 3- SIGNAL | GROUND |
11 | LVDS ODD 3+ SIGNAL | RXIN2- LVDS Channel 2 negative |
12 | LVDS EVEN O- SIGNAL | RXIN2+ LVDS Channel 2 positive |
13 | LVDS'EVEN 0+ SIGNAL | GROUND |
14 | GROUND | RXCLKIN- LVDS Clock negative |
15 | LVDS EVEN l- SIGNAL | RXCLKIN+ LVDS Clock positive |
16 | LVDS EVEN l+ SIGNAL | GROUND |
17 | GROUND | RXIN3- LVDS Channel 3 negative |
18 | LVDS EVEN 2- SIGNAL | RXlN3+ LVDS Channel 3 positive |
19 | LVDS EVEN 2+ SIGNAL | GROUND |
20 | LVDS EVEN CLOCK- SIGNAL | GROUND |
2l | LVDS EVEN CLOCK+ SIGNAL | LVDS OPTION |
22 | LVDS EVEN 3- SIGNAL | No Connection |
23 | LVDS EVEN 3+ SIGNAL | GROUND |
24 | GROUND | GROUND |
25 | NO CONNECTION | GROUND |
26 | NO CONNECTION | POWER SUPPLY( +5.OV ) |
27 | NO CONNECTION | POWER SUPPLY( +5.0V ) |
28 | POWER SUPPLY( +5.OV ) | POWER SUPPLY( +5.OV ) |
29 | POWER SUPPLY( +5.OV ) . | POWER SUPPLY( +5.0V ) |
30 | POWER SUPPLY( +5.OV ) | POWER SUPPLY( +5.OV ) |