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Topics - JuSil

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Discussion - EVE / Multi tag problem

« on: November 26, 2021, 03:38:34 PM »

Hello
I have problem with multi tag functionality. The Display is Riverdi Eve4 RVT70HSBNWC00-B
I changed my working one touch ( tag ) system to multi touch. But I can't get it work.

Any touch makes an interrupt and code starts to write tag registers (REG_TOUCH_TAG, REG_TOUCH_TAG1....) to array.

So, when I touch my first finger to Button1 (tag1) array is [1,0,0,0,0]
Second finger Button2 (tag2) array is [1,2,0,0,0]

Then I take first finger off Button1(tag1) array is [1,0,0,0,0] , why is this? My only finger touches button2

Seems that when I take off any finger from the display, the last array value goes to 0

Discussion - EVE / Unwanted stripes on the EVE4 1024x600 picture

« on: September 17, 2021, 12:23:45 PM »

Hello,
I have problem with this EVE4 7" display, old EVE3 7" 800x480 worked fine.
In attachment file is a photo from my display.
My code base is the same only few lines added to initialize.

#ifdef EVE4
EVE_MemWrite16(REG_PCLK_FREQ, PCLK_FREQ);
EVE_MemWrite8(REG_ADAPTIVE_FRAMERATE, ADAPTIVE_FRAMERATE);
#endif

I got the timing parameters from Riverdi.
#ifdef EVE4
#define DWIDTH 1024
#define DHEIGHT 600
#define PIXVOFFSET 0
#define PIXHOFFSET 0
#define HCYCLE 1344
#define HOFFSET 160
#define HSYNC0 0
#define HSYNC1 70
#define VCYCLE 635
#define VOFFSET 23
#define VSYNC0 0
#define VSYNC1 10
#define PCLK 1
#define SWIZZLE 0
#define PCLK_POL 1
#define HSIZE 1024
#define VSIZE 600
#define CSPREAD 0
#define DITHER 0
#define PCLK_FREQ 0xd12 //0xe12
#define PCLK_2X 0
#define ADAPTIVE_FRAMERATE 0
#define AH_HCYCLE_MAX 0
#define DISPWIDTH_HSF 1076
#endif

Only PCLK_FREQ I changed to 0xd12 , riverdi value was 0xe12.
0xe12 makes stripes even more.

What I'm doing wrong? What is purpose of DISPWIDTH_HSF ?

Discussion - EVE / not so smooth Gradient

« on: August 26, 2020, 12:37:01 PM »

Hi,
I have an issue with gradient.

CMD_GRADIENT(400, 380, 0x336372, 400, 100, 0x84A3B2)

Looks nice in a Eve screen Editor, but in the display there are stripes about every 4millimeter. Gradient is a background, 800x480.
If I use gradient picture ARGP1555.raw, it looks ok.

I have Riverdi 7" eve3 BT815
//EVE 70
#define DWIDTH 800
#define DHEIGHT 480
#define PIXVOFFSET 0
#define PIXHOFFSET 0
#define HCYCLE 928
#define HOFFSET 88
#define HSYNC0 0
#define HSYNC1 48
#define VCYCLE 525
#define VOFFSET 32
#define VSYNC0 0
#define VSYNC1 3
#define PCLK 2
#define SWIZZLE 0
#define PCLK_POL 1
#define HSIZE 800
#define VSIZE 480
#define CSPREAD 0
#define DITHER 1