hello,
I bought last week one Embedded Artists LPC2478 OEM Board and QVGA OEM
base board with touch panel. I tried to use the sample concerning LCD driver
from EmbeddedArtist web site in Keil environment but it doesn't work
correctly, I have a gray lcd instead to have their demo running. I need help
from someone that passed through the same experience or some idea why that lcd
remains in that state, maybe the initialization procedure is not good. I tried
to compare the code from EA and the user guide of 240 RGB x 320 TFT LCD
Controller Driver integrated Power Circuit, Gate and Source Driver with built-in
RAM(SSD1289) but I wasn't able to understand all. It's my first
experience with an LCD like that.
thank you
need help with the LCD of Embedded Artists LPC2478 OEM board
Started by ●April 2, 2009
Reply by ●April 5, 20092009-04-05
The NXP example driver for the Keil tool is for an older version of the 2478
board. You probably have a newer board with the 32bit OEM module which requires
some different settings. There is an EA example written for the GCC environment
which does work for this board. The main difference is the memory init in the
startup file. Look at how the init works for the GCC code and translate that
into the init file for the Keil LCD example.
The other option is to bug EA until they supply a working driver for their board.
--- In l..., "meridius_bodaus@..." wrote:
>
> hello,
>
> I bought last week one Embedded Artists LPC2478 OEM Board and QVGA OEM
> base board with touch panel. I tried to use the sample concerning LCD driver from EmbeddedArtist web site in Keil environment but it doesn't work correctly, I have a gray lcd instead to have their demo running. I need help from someone that passed through the same experience or some idea why that lcd remains in that state, maybe the initialization procedure is not good. I tried to compare the code from EA and the user guide of 240 RGB x 320 TFT LCD Controller Driver integrated Power Circuit, Gate and Source Driver with built-in RAM(SSD1289) but I wasn't able to understand all. It's my first experience with an LCD like that.
>
> thank you
>
The other option is to bug EA until they supply a working driver for their board.
--- In l..., "meridius_bodaus@..." wrote:
>
> hello,
>
> I bought last week one Embedded Artists LPC2478 OEM Board and QVGA OEM
> base board with touch panel. I tried to use the sample concerning LCD driver from EmbeddedArtist web site in Keil environment but it doesn't work correctly, I have a gray lcd instead to have their demo running. I need help from someone that passed through the same experience or some idea why that lcd remains in that state, maybe the initialization procedure is not good. I tried to compare the code from EA and the user guide of 240 RGB x 320 TFT LCD Controller Driver integrated Power Circuit, Gate and Source Driver with built-in RAM(SSD1289) but I wasn't able to understand all. It's my first experience with an LCD like that.
>
> thank you
>
