imx535 some questions

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imx535 some questions

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tarterkit_ru
Contributor III

Hello!
 Have custom iMX535 board, do new revision of PCB and don't understand how must be CSI0 bus connection?

MSB is CSI0_DAT19 or CSI0_DAT12?

Also, TVE can generate composite video output signal, but what processor pin be use for this TCDAV_COMP?

 

Thanks 

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Yanfei_Sun
Contributor IV

yes. but make sure that when acting in 8bit mode, P15~P8 would be used.

please refer to the sentences in RM:

"Each value can be 8-16 bit wide according to configuration of DATA_WIDTH. If DATA_WIDTH is configured to N, then 20-N LSB bits are ignored"


back to the on-the-fly processing, it's another way to process the image.

on-the-fly processing means TVADC->CSI->IC/VDI->...

direct path to memory means TVADC->CSI->SMFC->MEMORY->...

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IvanMakarov
Contributor I

467-rm_table.png

Taking in account that i use 64-Lead LQFP version, best connection would be:

P0  ->  CSI_DAT4

....

P15  ->  CSI_DAT19

This scheme allows to switch between 16 bit and 8 bit modes by soft configuration of IPU and ADV7180 .

Am I right?

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Yanfei_Sun
Contributor IV

the connection is correct.

on-the-fly processing means the data is not put into memory but directly to post processing or rendering module. We are using the different version of RM I cannot find the table 45-2 you mentioned. it's better you can post an image for the table.

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IvanMakarov
Contributor I

Another question about CSI:

For instance I connect ADV7180 to CSI0, and data bus goes like:

P0  ->  CSI_DAT12

....

P7  ->  CSI_DAT19

Is that correct?

Another question: what does it mean "On-the-fly processing" (Table 45-2 in Reference manual)

Does "No" means, that image projection will not ne avaiable without writing data on RAM?

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Yanfei_Sun
Contributor IV

For CSI the MSB is CSI0_DAT19. TVDAC_COMP is connected to GND with a 0.1uF capacitor

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