sean
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Activity overview
Latest activity by sean-
sean commented,
brybot,We have not fixed it yet. We have turned it over to someone to review the design and debut the project. As of yet they have not discovered the problem either. You said you have fixed your...
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sean commented,
Sorry I was not clear. I have a 1 ohm resistor on main 3.3V regulator for the whole board. I can set the back light to draw 25mA, 100mA or I can turn the backlight off. With the backlight off, ...
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sean commented,
I measured the current draw of the board with the backlight off and with the LCD disconnected and I do not see a change. It seams the current change should be 7-9mA.
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sean commented,
In the datasheet is days that for 8-bit parallel communication we should use DB8-DB15. Is that correct (as shown in my schematic)? The LCD is behaving as though it is not getting anything at all....
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sean commented,
I hard wired the CS line to ground. Same result. I also rechecked my code against the know good code and did not find any inconsistencies.
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sean commented,
I verified that the value I write to the data port shows up on the pins to the LCD.Then I wrote the following code but did not get any green (or any changed) pixels. // Define an area of 100 Pixe...
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sean commented,
Yes. I have two identical boards. They both behave the same, that is I only get a white screen that does not change when I run the code. I have tried a few things. I swapped the display between...
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sean commented,
Here is a link to the connector that I am using to attach the LCD to the board: http://www.digikey.com/product-detail/en/FH28-40S-0.5SH(05)/HFV140CT-ND/2119015. It is a 40 Pin Bottom contact 0.020...
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sean commented,
FYI Here is the board I am working with. The connector on the left of the screen is where I am measuring the voltages. For some reason the picture shows stripes on the screen but it is really jus...
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sean commented,
The display is basically white. There are no colors. Nothing is ever displayed on the screen. I have gone through the code I am using again and very carefully compared it to the code you said wor...