topic Re: Detailed Signal Descriptions for IPU / CSI in i.MX Processors

Detailed Signal Descriptions for IPU / CSI

KlausGuertler — Thu, 22 Mar 2012 07:26:09 GMT

Hello,

I intend connecting a camera (parallel interface) to IPUs CSI at iMX53. At almost all chapters in the reference manual there is a chapter "Detailed Signal Descriptions" according to the described peripheral. But not so at the IPU. Where can I find a list of the external signals related to the IPU/CSI and where is the detailed description of this signals?

Thanks in advance, Klaus

PS. Sorry to the group members they received this as a message. Initially I want to start a discussion and pressed the wrong button.

Re: Detailed Signal Descriptions for IPU / CSI

sidebranch — Tue, 24 Apr 2012 22:20:30 GMT

Klaus, have you looked at the Datasheet? There are timing diagrams and electrical specs for the signals/pins.

If you have, let us know what info you are missing.

Re: Detailed Signal Descriptions for IPU / CSI

KlausGuertler — Wed, 25 Apr 2012 11:29:52 GMT

Thanks for the reply Leon. I'm a bit familiar with interfacing CMOS image sensors, but there is one signal which is unknown for me: CSI_DATA_EN. In general data from sensor is latched with the rising or falling edge of CSI_PIXCLK. What is the purpose of CSI_DATA_EN? In the data sheet there is nothing to found for this signal.

Klaus

Re: Detailed Signal Descriptions for IPU / CSI

sidebranch — Wed, 25 Apr 2012 11:45:28 GMT

Klaus, you do not need this signal for BT or gated mode. I am not sure in which other modes this signal is needed, I hope Freescale can answer this here?

Re: Detailed Signal Descriptions for IPU / CSI

NitinSonar — Thu, 26 Apr 2012 13:57:06 GMT

Hi Klaus,

You can refer to

"Table 57. Camera Input Signal Cross Reference, Format and Bits per Cycle"

of IMX53AEC: Datasheet document. The datasheet tells more about hardware and pin assignment details than RM.

Best Regards

Nitin Sonar

Re: Detailed Signal Descriptions for IPU / CSI

KlausGuertler — Thu, 26 Apr 2012 14:09:48 GMT

Hi Nitin, thanks for the hint. I concentrated on the reference manual and did not looked so deep into the data sheet.

I think this will help.

Best Regards

Klaus