i.MX ProcessorsのトピックRe: mx6dl SOC LCD interface about blank data

mx6dl SOC LCD interface about blank data

mrleo — Wed, 08 Jul 2015 06:36:47 GMT

Hi All，

I want lcd interface use ch7055a chip connect vga display.

Who know mx6dl SOC in LCD blank is how to deal with data is not all for 0?

Or is all not 0?

I did not find it in the specification.

Please give me a help?

Thanks,

Leo

Re: mx6dl SOC LCD interface about blank data

Yuri — Wed, 08 Jul 2015 08:22:43 GMT

The i.MX6 IPU does not provide options to configure display related

signals in predefined state during blanking period or in sleep mode.

(Previous state is kept.)

Have a great day,
Yuri

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Re: mx6dl SOC LCD interface about blank data

mrleo — Thu, 09 Jul 2015 01:53:34 GMT

HI Yuri Muhin,

My custom mx6dl board using ch7055a vga display color is not bright enough.

Ch7055a fae suggest modify to configure display related

signals data to zero during blanking period .

Is or not can configure the blank data to zero?

Thanks,

Leo

Re: mx6dl SOC LCD interface about blank data

Yuri — Thu, 09 Jul 2015 06:16:47 GMT

Leo,

You may try to configure frame buffer so, that the recent pixel in each

line is zero.

Regards,

Yuri.

Re: mx6dl SOC LCD interface about blank data

mrleo — Thu, 09 Jul 2015 07:17:42 GMT

Yuri,

Sorry,I don't what to do? Can you tell me how to try?

Thanks,

Leo

Re: mx6dl SOC LCD interface about blank data

Yuri — Fri, 10 Jul 2015 09:03:05 GMT

It is needed to calculate position of each last in the line pixel in memory, corresponding

the frame buffer, and clear it.

Regards,

Yuri.