I have a 2 row 40 character display and I don't know what's going on here but I can't write a single character to location 30 in either row 1 or 2 addresses 9F & DF. I can write strings of characters but not one character at a time to those locations. I can write single characters to other addresses but not those two. I have another NH display that I tried and I have the same problem with that display also.
Any Ideas, Thank You
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