DL1414T - 16 Segment + DP - I just like displays...

Interesting post-'mortem': The signal sequence and timing of the initially introduced and ultimately working code is different from what the data sheet says:

Code:

1. apply data bits
   
2. apply address bits
   
3. pull write line down low
   
4. pull write line back up high
   
   

Datasheet (see attached diagram):

1. apply data bits
   
2. pull write line down low
   
3. apply address bits
   
4. pull write line back up high
   
   

If I do as the data sheet say, I get characters doubled... bleeding into the previous address... I have no definite answer for that except that I do not have exactly the Siemens module which obviously does latch the data only on the rising edge...

2 Attachments

• Chars_4.mp4
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