Research & Development repository about cheap cameras (mainly XM manufactured)

PRs with additional information and corrections are welcome.

Where to begin?

• OpenIPC wiki
• English XM FAQ. Thanks to @vbelov42 for translation from Russian.
• Russian XM FAQ.
• How to get telnet on XM camera

Articles/books for newbies

• George Hilliard. Mastering Embedded Linux, series of articles
• Frank Vasquez, Chris Simmonds. Mastering Embedded Linux Programming, 3rd Edition
• Linux Inside. A book-in-progress about the linux kernel and its insides
• Alberto Liberal de los Ríos. Linux Driver Development for Embedded Processors, 2nd Edition
• Bootlin. Linux Kernel training materials
• Introducing ARM assembly language

Telegram groups

• OpenIPC English
• OpenIPC Russian, русская группа
• OpenIPC Iranian, یم OpenIpc برای کاربران ایرانی

Chip families information

Hardware structuring (courtesy of OpenHisiIpCam project):

Chips	shortcode
hi3516cv100, hi3518cv100, hi3518ev100, hi3518av100	hi3516cv100
hi3516dv100, hi3516av100	hi3516av100
hi3518ev200, hi3518ev201, hi3516cv200	hi3516cv200
hi3519v101, hi3516av200	hi3519v100
hi3516ev100, hi3516cv300	hi3516cv300
hi3516dv300, hi3516av300, hi3516cv500	hi3516cv500
hi3516ev200, hi3516dv200, hi3518ev300, hi3516ev300	hi3516ev200
hi3519av100	hi3519av100
hi3559av100	hi3559av100
gk7205v200, gk7605v100, gk7202v300, gk7205v300	gk7205v300(*)
nt98562, nt98566	nt9856x
ssc337, ssc335	ssc335
xm510	xm510
xm550, xm530	xm530

If you know about newer versions of full datasheets or can share them for different camera types don't hesitate to make a PR.

(*) Successors of Hisilicon chips

Hisilicon	Goke
hi3516ev200	gk7205v200
hi3516dv200	gk7605v100
hi3516ev300	gk7205v300
hi3518ev300	gk7202v300

Performance and sensors

Chip	CPU	Encoder	JPEG substream	Sensors
hi3516av100	A7 600MHz	5MP@30fps, 1080p@60fps, 1080p@30fps	5MP@8fps	IMX178, IMX385, IMX290, IMX185, OV4689, AR0237
hi3516dv100	A7 600MHz	5MP@15fps, 3MP@30fps, 1080p@30fps	5MP@8fps	IMX178, IMX385, IMX290, IMX185, OV4689, AR0237
hi3519v101	A17 1.25GHz + A7 800MHz	12MP@15fps, 8MP@30fps	8MP@30fps	IMX226, IMX274
hi3516av200	A17 1.25GHz + A7 800MHz	8MP@15fps, 6MP@30fps	8MP@30fps	IMX274, OS08A10
hi3516dv300	A7 900MHz (NNIE 1.0Tops)	5MP@20fps, 1080p@30fps	16MP@10fps	IMX385, IMX327
hi3516cv500	A7 900MHz (NNIE 0.5Tops)	3MP@20fps, 1080p@30fps	16MP@10fps	IMX327
hi3518ev200	ARM926 540MHz	720p@30fps	2MP@5fps	AR0130, OV9732, OV9712, F02
hi3516ev100	ARM926 800MHz	1080p@20fps	2MP@5fps	IMX291, IMX323, SC3235
hi3516cv300	ARM926 800MHz	1080p@30fps	2MP@5fps	IMX291, IMX323, SC3235
hi3516ev300	A7 900MHz	4MP@15fps, 3MP@30fps	4MP@5fps	IMX335
hi3516ev200	A7 900MHz	3MP@20fps, 1080p@30fps	3MP@5fps	SC3235, IMX307

Hardware

• Sensors information

How to add new hardware support

• Your new ARM SoC Linux support check-list
• Sensor
• Flash

SDKs

HiSilicon

Family	Kernel	U-Boot	MPP
hi3516av100	3.4.35		v2
hi3516av200	3.18.20		v3
hi3516cv100	3.0.8	2010.06-svn	v1
hi3516cv200	3.4.35		v2
hi3516cv300	3.18.20	2010.06-svn1098	v3
hi3516cv500	4.9.37		v4
hi3516ev200	4.9.37	2016.11-g2fc5f58	v4
hi3516ev300	4.9.37		v4
hi3519av100	4.9.37		v4
hi3559av100	4.9.37		v4

HiSilicon SDK naming principles:

Hi35xxVxxxRxxxCxxSPCxxy

Each field is explained as follows:

• Hi35xx, segment contains chip type
• Vxxx segment contains the type of chip version
• Rxxx segment contains the release package type:
  • R001: Linux SDK
  • R002: Huawei LiteOS SDK
  • R003: Linux RDK reference design
  • other R bit is not used
• Cxx segment contains compiler specific environment
  • C00: FPGA-based
  • C01: type A compiler (e.g. uclibc based sysroot)
  • C02: type B compiler (e.g. glibc based sysroot)
  • C03 and C04 are reserved
  • C05: Huawei LiteOS
  • C09: based on Demo version
• SPCxxy segment shows current version
  • xx for each next release will be incremented by 1 (releases with fixed errors, additional features, etc)
  • xx0 indicates normal version, for temporary versions last character could be incremented by 1 in range from 1-9 and A-z.

XiongmaiTech

Platform	Version	Update time	Download link
Windows	V4.0.8.80	2020-02-27	link
Mac		2018-12-17	link
Linux	V1.0.2.0	2020-01-10	link

Latest versions were taken from official site

• NetSDK client example

Sophisticated usage

YouTube streaming

Development

Low level programming

• ARM9EJ-S Technical Reference Manual
• PrimeCell UART (PL011) Technical Reference Manual

Cross-compilation

• Known toolchains
• Instructions for cross-compilation for different common software

Development using SDK

• Building custom kernel
• Building Busybox
• Hacking camera using NFS

Debugging

• Debugging on board using gdbserver
• Ltrace debug

Development tricks

• Running ARM binaries using QEMU on dev host
• Changing files on readonly volumes

RE

• Reverse binary Linux kernel
• Reverse HiTool
• Reverse Sofia