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Discussion Groups | Analog Devices DSPs | how to decide the PPI_DELAY?

Technical discussions related to Analog Devices DSPs (including Blackfin, TigerSHARC, SHARC and ADSP-21xx DSPs).

  

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how to decide the PPI_DELAY? - univmercury - Sep 22 12:21:33 2007



Hi all,

I'm using bf533 to capture images and display on the tft-lcd. Now I
can caputure the image in BGB565 format.Then I want it to be sent to
PPI, then displayed. I use Timer1 and Timer 2 to send H and V frame
sync signal. In PPI setting, I don't know to set the PPI_DELAY. I have
read the tft-lcd's docs, the horizontal total is 1224 dots, Hsync
Pulse Width is 5-90 dots. The vertical total is 262 horizontal total,
that is 262*1224 dots. Vsync Pulse Width is 1 or 3 or 5 , that is
1/3/5*1224 dots.

Then, to set the PPI_DELAY, I can't find any hints. Can anybody give
me some light?

Thx in advance.

Best,
Haifeng



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