Need more help with the 4x20 LCD.
MarkS
Posts: 342
I'm using the LCD here: http://www.optrex.com/products/partdetail.asp?PartNumber=C-51847NFJ-SLW-ADN
I have been able to get it hooked up and running from my Prop, but I'm having trouble actually getting it to display characters correctly. The issue is that there is no reference to the start of the display data ram. You are supposed to reference an address and then set the data you want displayed. Kinda hard when you don't know where to reference. I was able to get it to display the letter 'A' by referencing a random address and setting the correct data, but I always get four characters displayed instead of one. Sometimes all I get is garbage. Any ideas? I figure that I'm reading the controller data sheet incorrectly.
I'm out of town, so I cannot upload the code I'm using until the 17th or 18th, but any ideas until then would be nice.
I have been able to get it hooked up and running from my Prop, but I'm having trouble actually getting it to display characters correctly. The issue is that there is no reference to the start of the display data ram. You are supposed to reference an address and then set the data you want displayed. Kinda hard when you don't know where to reference. I was able to get it to display the letter 'A' by referencing a random address and setting the correct data, but I always get four characters displayed instead of one. Sometimes all I get is garbage. Any ideas? I figure that I'm reading the controller data sheet incorrectly.
I'm out of town, so I cannot upload the code I'm using until the 17th or 18th, but any ideas until then would be nice.
Comments
Going to the "Engineering Center" menu and choosing manuals should have been my first guess.