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[[File:C792-IMG-9541.jpg|thumb|right|C792]]
[[File:C792-IMG-9541.jpg|thumb|right|C792 front view]]
[[File:C792-IMG-9542.jpg|thumb|right|C792]]
[[File:C792-IMG-9542.jpg|thumb|right|C792 rear view]]
[[File: C792-Packing-List.jpg|500px]]
[[File:C792-IMG-9541-size.jpg|thumb|right|C792]]
[[File:C792-IMG-9541-interface.jpg|thumb|right|C792]]
[[File:C792-IMG-9541-Application.jpg|thumb|right|C792]]
<span class="tb_red">'''Important Notice'''</span>
*This product is designed for advanced Raspberry Pi users and may <span class="tb_red">not be suitable for beginners.</span>
*The Raspberry Pi 5 lacks hardware-accelerated H.264 encoding, resulting in lower image capture performance than the Pi 4B and high CPU usage at 1080p
*For stable operation, we strongly recommend <span class="tb_red">powering the module separately via the 5V power port.</span>
 
 
==Overview==
==Overview==
The C792 is an HDMI to CSI-2 converter module with HDMI loop out that supports I2S audio output.
The C792 is an HDMI-to-MIPI CSI-2 converter module <font color=red>with HDMI loop out</font> and I2S audio output support.
:'''HDMI Input:''' Supports up to 4K@60Hz, and the HDMI loop-out outputs the same content synchronously as the input.
:'''CSI-2 Output:''' Supports up to 1080p@60Hz (4K input is automatically downscaled to 1080p while keeping the refresh rate).


The HDMI input supports up to 4K 60Hz, and the HDMI loop out screen is consistent with the HDMI input screen.
==Working Principle==
The module's hardware architecture consists of the GSV2001 and TC358743: The GSV2001 handles HDMI signal splitting (one channel for loop‑out display, the other to the TC358743 for processing), and the TC358743 performs HDMI‑to‑CSI‑2 conversion.


CSI-2 output support up to 1080p 60Hz (4K screen will be automatically scaled to 1080p, the refresh rate remains unchanged).
'''HDMI Loop‑out'''
:<span class="tb_red">*When a monitor is connected:</span> The HDMI source detects the physical display.
:<span class="tb_red">*When '''NO''' monitor is connected:</span> The source detects a virtual display (EDID) emulated by the TC358743.


==Hardware Parameters==
'''CSI‑2 Interface'''
* Model: C792
:<span class="tb_red">*15‑pin:</span> 2 data lanes, for Raspberry Pi Zero / 3B / 4B, up to 1080p@50Hz
* Compatible with Raspberry Pi 5B/4B//3B/Zero/CM5/CM4
:<span class="tb_red">*22‑pin:</span> 4 data lanes, for Raspberry Pi CM4 / CM5 / 5B, up to 1080p@60Hz
* HDMI input: supports up to 1080P60Hz on Raspberry Pi (Only when use with CM4 /CM5/ Pi 5B)
* HDMI to CSI-2 bridge chip:Toshiba TC358743XBG
* 2 CSI-2 channels & clock (Pi 4B/3B and Pi Zero only support 2 lan, max 1080P1080p50Hz, and  Pi CM4 /CM5/ 5B can support 4 lan, max 1080P1080p60Hz)
* The CSI-2 interface, with 15 pin FPC seat, spacing 1.0 mm, is located on the front of the C792 module.
* The CSI-2 interface, with 22 pin FPC seat, spacing 0.5 mm, is located on the back of the C792 module.
* Size: 56 x 56 mm
* Power supply:5V
* Weight: 25g


Important note:
{{HDMI to CSI}}
The hardware programme is GSV2001+TC358743, in which GSV2001 realizes HDMI one-part-two function and TC358743 realizes HDMI to CSI-2 function.


In order to ensure the stability of the module, it is strongly recommended that the module be powered through the 5V power supply interface.
==Hardware Parameters==
 
*'''Model:''' C792
When the ‘HDMI Loop Out’ is connected to the monitor, the HDMI source detects the monitor connected to the ‘HDMI Loop Out’; when the ‘HDMI Loop Out’ is not connected to the monitor, the HDMI source detects the monitor connected to the TC358743. When ‘HDMI Loop Out’ is not connected to a monitor, the HDMI source detects the monitor emulated by the TC358743.
*'''Compatible with:''' Raspberry Pi 5B/4B/3B/Zero/CM5/CM4
*'''HDMI input:''' Raspberry Pi hardware is mainly divided into two series, supporting a maximum of either 1080P@60Hz or 1080P@50Hz
:<span class="tb_red">*Up to 1080P@60Hz:</span> CM3, CM4, Pi 5B
:<span class="tb_red">*Up to 1080P@50Hz:</span> Zero, Zero 2, Pi 3B, Pi 4B, etc.
*'''Size:''' 56 x 56 mm
*'''Power supply:''' 5V
*'''Weight:''' 25g


==Packing List==
==Packing List==


* 1 x C790 HDMI to CSI-2 Module
* 1 x C792 HDMI to CSI-2 Module
* 1 x 5V power cable  
* 1 x 5V power cable  
* 1 x 15cm Length FPC 15pin 1.0mm cable (for Pi 4B / 3B / Pi Zero)
* 1 x 15cm Length FPC 15pin 1.0mm cable (for Pi 4B / 3B / Pi Zero)
* 1 x 15cm Length FPC 22pin 0.5mm cable (for Pi 5B / CM5 / CM4)
* 1 x 15cm Length FPC 22pin 0.5mm cable (for Pi 5B / CM5 / CM4)
* 1 x I2S cable  
* 1 x I2S cable  
[[File: C792-Packing-List.jpg|500px]]
[[File:C792-IMG-9541-Packing list.jpg|500px]]


==User Manual==
==User Manual - C792 / C790 / C779 Software Demo==
<!-- 可以参考bli的说明
<!-- 可以参考bli的说明
https://wiki.blicube.com/blikvm/zh/hdmi-csi-i2s/#demo  
https://wiki.blicube.com/blikvm/zh/hdmi-csi-i2s/#demo  
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{{C792-Software}}
----
Here are a few tutorials:
* Similar Products Guide: [[X1300 Software]]
* Tutorial from customers: [https://github.com/geekworm-com/RPi5_hdmi_in_card RPi5_hdmi_in_card]
* '''Due to the absence of hardware encoding on the Pi 5B, the software usage instructions for Pi platforms are currently divided into two sections: Pi 5B configuration and configuration for other Pi platforms.'''
* '''Due to the absence of hardware encoding on the Pi 5B, the software usage instructions for Pi platforms are currently divided into two sections: Pi 5B configuration and configuration for other Pi platforms.'''
* <span style="color:red">'''In platforms such as Zero, Zero 2, Pi 3B, Pi 4B, etc., there is a reference for testing HDMI to CSI module demo： '''</span> [[C779-Software]] or [https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=281972 Raspberry pi official forum post]
* <span style="color:red">'''Pi 5B platforms HDMI to CSI module test demo reference： '''</span> [[CSI Manual on Pi 5]]
* <span style="color:red">'''Pi 5B platforms HDMI to CSI module test demo reference： '''</span> [[CSI Manual on Pi 5]]
* Refer to: https://wiki.blicube.com/blikvm/en/hdmi-csi-i2s/
* Possible software problems: [https://github.com/raspberrypi/firmware/issues/1915 ISP freezes with new firmware] and [https://github.com/raspberrypi/firmware/issues/1904 Raspberry Pi 5 firmware ignores and responds with incorrect frame buffer pixel depth information]
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* Also refer to: https://wiki.blicube.com/blikvm/en/C792/
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[[Category:Product Manual]]
[[Category:Product Manual]]
[[Category:Raspberry pi]]
[[Category:Raspberry pi]]


==FAQ==
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