P.E. K70 and LCD Question

cancel
Showing results for 
Search instead for 
Did you mean: 

P.E. K70 and LCD Question

Jump to solution
216 Views
crezyoz
Contributor IV

I am just getting started with PE. Trying to build an LCD driver for a monochrome Electro Luminiescent display. (HYSNC/VSYNC/ 2 wire interface/1bpp)

 

However, when I go to set the Pixel Clock there is no entry in the Component Inspector.  It is blank. Everything else went ok.

 

Any advice?

 

 

0 Kudos
1 Solution
65 Views
crezyoz
Contributor IV

Found it.. sorry for the noise.

 

View solution in original post

0 Kudos
3 Replies
66 Views
crezyoz
Contributor IV

Found it.. sorry for the noise.

 

View solution in original post

0 Kudos
65 Views
squadmcu
NXP Employee
NXP Employee

Hi Phil! How did you solve this?

0 Kudos
65 Views
crezyoz
Contributor IV

After a good deal of trial and error I determined that the type of EL display I am using can not be driven from the K70 in the 1bpp mode. Apparently the K70 can not keep the pixel clock running continuously in that mode only . So I had to use 8bpp mode and only use one bit to drive the display. This had a negative impact on my design because it meant I had to add DDR to the design. The frame buffers grew to 128k and I need 4 of them. I REALLY wish it had worked. I hope they make it very clear in the next set of docs for the LCD interface. It was an expensive week figuring that one out.

0 Kudos