BL_CTRL and VCFL_ON on efusA9 under WEC2013

Hello,

are the BL_CTRL and VCFL_ON signals of the efusA9 already implemented in WEC2013 F&S Kernel 1.40? Are the signals usable even if the display is connected to the LVDS connector?

I would like to switch the display on and off and to dimm the backlight darker and brighter from our application.

I already checked the Changelog and Roadmap but did not find anything about them. I already checked the device driver documents but I did not find information dedicated to the efusA9.

OK, i found out how to use BL_CTRL:

The PWM value of BL_CTRL is the "contrast voltage". So I added these lines to my Display Config script for NDCUCFG:

reg set value ContrastEnable dword 1
reg set value ContrastValue dword 0
reg set value ContrastFreq dword 20000

The Frequency on my oscilloscope actually is 50 kHz.

contrast set 0 -> 99,x % duty cycle (full brightness)
contrast set 4095 -> 0 % duty cycle (completly dark)

• Which values are allowed for the ContrastFreq?
• How can I set the contrast from my application without spawning a NDCUCFG process?

By the way, if anyone needs it: Here are my settings for the NEC NL10276BC13 TFT Display (6,5", 1024x768, LVDS):

reg open \drivers\display\lcd
reg set value Mode dword 100
reg set value OutputDevice dword 16384
reg create key Mode100
reg open \drivers\display\lcd\Mode100
reg del value Prefix
reg del value ExtDll
reg del value PWMDevice
reg del value PWMChannel
reg del value Freq
reg del value DutyCycle
reg enum
reg set value Name string "NEC NL10276BC13"
reg set value Type dword 0x00004006
reg set value Config dword 0x12300000
reg set value Columns dword 1024
reg set value PPL dword 1024
reg set value BLW dword 159
reg set value HSW dword 1
reg set value ELW dword 160
reg set value Rows dword 768
reg set value LPP dword 768
reg set value BFW dword 18
reg set value VSW dword 1
reg set value EFW dword 19
reg set value Width dword 132
reg set value Height dword 99
reg set value Bpp dword 16
reg set value ContrastEnable dword 1
reg set value ContrastValue dword 0
reg set value ContrastFreq dword 20000
reg set value LCDClk dword 65
reg set value EnableCursor dword 1
reg set value Rotate dword 0
reg set value Msignal dword 2
reg set value HVSync dword 2
reg set value PONLcdPow dword 0
reg set value PONLcdEna dword 0
reg set value PONLcdBufEna dword 0
reg set value PONVeeOn dword 0
reg set value PONCflPow dword 0
display mode set 100
reg save
reg open \drivers\display\lcd
reg enum
reg open \drivers\display\lcd\Mode100
reg enum

Hello,

I downloaded the SDK (ndcucfg_lib.h and ndcucfg_lib.lib). I get this error at link time:

1>------ Build started: Project: mcu-fw-x, Configuration: Release FSiMX6 WEC2013 ------
1>LINK : fatal error LNK1113: invalid machine type 0x1C2
========== Build: 0 succeeded, 1 failed, 1 up-to-date, 0 skipped ==========

Seems as if the LIB is not intended to be used with FSiMX6 WEC2013.