topic Re: LCD_VD18 - Segger emWin Lib in LPC Microcontrollers

LCD_VD18 - Segger emWin Lib

lpcware — Wed, 15 Jun 2016 17:13:35 GMT

Content originally posted in LPCWare by Grisu on Fri Oct 21 06:26:52 MST 2011
Hello,

I am using the segger emWin Lib (LPCXpresso-Version) with the embedded Artist EvalBoard LPC1788.
I connected my display in 5:6:5 mode with the board. Everythings works fine, except that there is no traffic on the LCD_VD18 Pin!
On all other Color data lines are traffic except on this specific LCD_VD18 Pin.
Do I have to obey some specific jumper settings regarding this LC_VD18 pin?
Do I have to obey something special with the display driver?

Thanks for your help,

Grisu

Re: LCD_VD18 - Segger emWin Lib

lpcware — Wed, 15 Jun 2016 17:13:36 GMT

Content originally posted in LPCWare by Grisu on Mon Oct 24 06:51:41 MST 2011
Pin2_12 (LCD_VD18) is initialised in LCDConf.c
LPC_IOCON->P2_12 = 7; // LCD_VD_18

In the LPC1788 Users Manual refer to 'Table 251. LCD panel connections for TFT panels'. Pin 2_12 is in TFT 16 bit - 5:6:5 Mode not LCD_VD[18] but LCD_VD[3]. According to Users Manual 'Table 77. Type D I/O Control registers: FUNC values and pin functions', I have to do the Initialisation of Pin2_12 like this:
LPC_IOCON->P2_12 = 5; // LCD_VD_3

Now there is a color signal on Pin2_12. I could check this with my oscilloscope.