For example, the second line of the first characters of the address is 40H, then 40H whether you can write directly to the cursor location in the second line the first character of the exact location? This can not work because of the requirements written into the show address highest D7 constant 1 for the high actual write data should be 01000000B (40H)+ 10000000B (80H) = 11000000B (C0H)

LCD1602型字符型液晶显示模块.doc

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