topic Re: i.MX51 Image Rotator performance in i.MX Processors

i.MX51 Image Rotator performance

norishinozaki — Mon, 29 Aug 2016 09:40:47 GMT

Hello Champs,

In the i.MX51 RM, there is this description,

I'm using a LCD with 1024x768@60Hz, the pixel clock is 65MHz.

Simply, 1024x768x60 = 47MHz pixels/sec, which is within the spec 50 M pixels/sec.

Isn't there bit per pixel specification?

Can I use Image Rotator for 1024x768@60Hz?

BR,
Nori Shinozaki

Re: i.MX51 Image Rotator performance

igorpadykov — Tue, 30 Aug 2016 09:09:37 GMT

Hi Nori

data is provided for YUV/RGB format, 8 bits/value

as described in sect.42.1.3.3.2 Image Rotator (IRT),

sorry there is no bit per pixel specification.

>Can I use Image Rotator for 1024x768@60Hz?

in theory yes, in practice performance may be affected by available

memory bandwidth (depending on application) as IRT uses

input/output from/to system memory.

Best regards
igor
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Re: i.MX51 Image Rotator performance

norishinozaki — Tue, 30 Aug 2016 09:36:40 GMT

Hello Igor,

Thanks!

BR, N.S.