C792

C792 front view

C792 rear view

C792

C792

C792

Contents

Overview

The C792 is a HDMI to CSI-2 converter module with HDMI loop out that supports I2S audio output.

The HDMI input supports up to 4K 60Hz, and the HDMI loop out screen is consistent with the HDMI input screen.

CSI-2 output support up to 1080p 60Hz (4K screen will be automatically scaled to 1080p, the refresh rate remains unchanged).

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Geekworm HDMI to CSI Module Series:

Convert HDMI signal acquisition into CSI signal and I2S audio signal. The maximum capture resolution depends on the HDMI to CSI converter board as well as the Raspberry Pi hardware.

Raspberry Pi hardware are primarily divided into two series, one supporting a maximum of 1080P@60Hz and the other supporting a maximum of 1080P50Hz.

• Raspberry Pi versions that support up to 1080P60Hz: CM3, CM4, Pi 5B
• Raspberry Pi versions that support up to 1080P50Hz: zero, zero2, Pi3B, Pi4B, etc.

Picture	Model	Description	Max Input Resolution	Matching Case	I2S Audio	HDMI Capture Chip	PCB Dimension	CSI-2 Connector	Supported SOC
	C790	HDMI to CSI-2	1080p@60fps	None	Yes with 1 x I2S cable (15cm length)	Toshiba TC358743XBG	30 x 45 mm	15-PIN FPC (pitch 1.0 mm) on the front of C790 22-PIN FPC (pitch 0.5 mm) on the rear of C790	Pi 5B / 4B / 3B+ / 3B / 3A+ / Zero / Zero W/ Zero 2W / CM3 / CM4
	C792	HDMI to CSI-2 with HDMI OUT loop	1080P@60Hz for Pi 5B, CM4, CM3, 1080P@50Hz for zero, zero2, Pi3B, Pi4B	None	Yes with 1 x I2S cable (15cm length)	Toshiba TC358743XBG	56 x 56 mm	15-PIN FPC (pitch 1.0 mm) on the front of C792 22-PIN FPC (pitch 0.5 mm) on the rear of C792	Pi 5B / 4B / 3B+ / 3B / Zero / Zero W/ Zero 2W / CM3 / CM4
	X630	HDMI to CSI-2	1080p@50fps	X630-C1	Yes, but I2S wiring or the X1300-A2 accessory board is necessary	Toshiba TC358743XBG	30 x 42.4 mm	15-PIN FPC (pitch 1.0 mm)	4B / 3B+ / 3B / 3A+ / Zero W / Zero 2W
	X1300	HDMI RX to MIPI CSI-2-TX	1080p@60fps	X1300-C1	Yes, but I2S wiring or the X1300-A2 accessory board is necessary	Toshiba TC358743XBG	30 x 37.5 mm	22-PIN FPC (pitch 0.5 mm)	Pi 5B / CM4 IO
	X1301	HDMI RX to MIPI CSI-2-TX HDMI loop output	1080p@60fps	X1301-C1	Yes	Toshiba TC358743XBG	57 x 85.5 mm	22-PIN FPC (pitch 0.5 mm)	Pi 5B / 4B / 3B / 3B+ / 3A+ / CM4 IO
	C779	HDMI to CSI-2	1080p@50fps	None	NO	Toshiba TC358743XBG	35 x 50 mm	15-PIN FPC (pitch 1.0 mm)	Pi 5B / 4B / 3B+ / 3B / 3A+ / Zero / Zero W/ Zero 2W
	X1300-A2	I2S audio accessory board for X630 / X1300	1080p@60fps	None	This is a I2S audio accessory board	-	57 x 65 mm	-	work with X1300 HDMI to CSI-2 for Raspberry Pi 5B, CM4 IO board work with X630 HDMI to CSI-2 for Raspberry Pi 4B, 3B+ and 3B

Hardware Parameters

• Model: C792
• Compatible with Raspberry Pi 5B/4B/3B/Zero/CM5/CM4
• HDMI input: supports up to 1080P60Hz on Raspberry Pi (Only when use with CM4 /CM5/ Pi 5B)
• 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:

• 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.
• 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.

Packing List

• 1 x C792 HDMI to CSI-2 Module
• 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 22pin 0.5mm cable (for Pi 5B / CM5 / CM4)
• 1 x I2S cable

User Manual

Here are a few tutorials:

• Similar Products Guide: X1300 Software
• Tutorial from customers: 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.
• Pi 5B platforms HDMI to CSI module test demo reference： CSI Manual on Pi 5
• Possible software problems: ISP freezes with new firmware and Raspberry Pi 5 firmware ignores and responds with incorrect frame buffer pixel depth information
• Also refer to: https://wiki.blicube.com/blikvm/en/C792/

FAQ

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Anonymous user #1

4 days ago

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is there a way to configure the GSV2001 to provide 720p to the CSI interface for capturing on older pi's regardless of the input resolution, or is it only able to scale 4k down to 1080p60 as noted above?

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Anonymous user #1

3 days ago

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Looks like this is a limitation of the GSV2001 and not configurable. > 1.2.3 Internal Downscaler

> Scaler is only used to downscale 4k UHD timings to 2k FHD timings. The horizontal resolution and vertical resolution are both cut in half while frame rate remains the same.

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