Vybrid ProcessorsのトピックSpecial DDR

Special DDR

takashitakahash — Fri, 13 Feb 2015 08:18:39 GMT

Dear community.

Our customer development cluster meter using vybrid.

Can be display the compressed image using a Special DDR mode in REL function.

Drawing specifies the address and size of RLE compressed image data that is on the Flash ROM for Layer # 1.

Here, when DCU0_CTRLDESCL0_4.EN field is 1 (display the Layer # 0) is no problem, But set to DCU0_CTRLDESCL0_4.EN field is 0 (the Layer # 0 hidden) Drawing will be broken (display becomes like sandstorm).

Condition is not drawn to Layer # 0, it is RLE_EN = 0.

Why not get the screen when hide the Layer # 0?

Would you please advice .

Re: Special DDR

VilemZ — Tue, 17 Feb 2015 08:12:51 GMT

Hi Takashi,

It seems, that you show layer under Layer # 0. It point to empty memory, I think.

Best regards

Vilem

Re: Special DDR

takashitakahash — Wed, 18 Feb 2015 08:01:22 GMT

Dear Vilem.

Thank you for your replay.

But I think , When use the layer #0(view Layer # 0) is no problem ,if dose not use the layer# 0( hidden Layer # 0.) is problem occurs.

I dont think Layer # 0. It point to empty memory.

Have you considered the other?

Re: Special DDR

VilemZ — Wed, 18 Feb 2015 08:09:06 GMT

Hi Takashi,

Yes, I thought, that layer under Layer # 0 was corrupted. Not Layer # 0. But when you hide Layer # 0, you want see something else. And it is corrupted. Maybe it is point to bad memory (bad pointer or address).

Best regards

Vilem

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CommunityBot — Thu, 03 Sep 2020 15:42:24 GMT

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