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TM1628A Datasheet(PDF) 5 Page - Shenzhen Tianwei Electronics Co., Ltd |
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TM1628A Datasheet(HTML) 5 Page - Shenzhen Tianwei Electronics Co., Ltd |
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5 / 18 page ![]() LED 驱动控制专用电路 TM1628A ©Titan Micro Electronics www.titanmec.com - 5 - V1.1 六、 显示寄存器地址: 该寄存器存储通过串行接口接收从外部器件传送到TM1628A的数据,最多有效地址从00H-0DH共14字节单元, 分别与芯片SEG和GRID管脚对应,具体分配如图(2): 写LED显示数据的时候,按照显示地址从低位到高位,数据字节从低位到高位操作。 X X X xxHL(低四位) xxHU(高四位) xxHL(低四位) xxHU(高位) B0 B1 B2 B3 B4 B5 B6 B7 B0 B1 B2 B3 B4 B5 B6 B7 C0HL C0HU C1HL C1HU GRID1 C2HL C2HU C3HL C3HU GRID2 C4HL C4HU C5HL C5HU GRID3 C6HL C6HU C7HL C7HU GRID4 C8HL C8HU C9HL C9HU GRID5 CAHL CAHU CBHL CBHU GRID6 CCHL CCHU CDHL CDHU GRID7 图(2) ▲注意:芯片显示寄存器在上电瞬间其内部保存的值可能是随机不确定的,此时客户直接发送开屏命令, 将有可能出现显示乱码。所以我司建议客户对显示寄存器进行一次上电清零操作,即上电后向14位显存地址 (C0H-CDH)中全部写入数据0x00。 七、 显示: 1、驱动共阴数码管: SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 GRID1 a b f c g d e a b c d e f g dp dp com SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 GRID1 图(7) 图7给出共阴极数码管的连接示意图,如果让该数码管显示“0”,只需要向00H(GRID1)地址中从低位开 始写入0x3F数据即可,此时00H 对应每一个SEG1-SEG8的数据如下表格。 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 0 0 1 1 1 1 1 1 GRID1(C0H) B7 B6 B5 B4 B3 B2 B1 B0 |
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