[Released] It’s okay if it rains, just get two boards!
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This post was last edited by wuyanyanke on 2014-9-22 10:28 Exchangeable contacts: Qinyan QT2440 (150 yuan):
(uboot is damaged, everything else is normal, self-assembled 12V power supply is not recommended for novices) If software recovery is required, the price will not be this high. Reference: http://www.armzone.com/Product_Show.asp?ArticleID=546 http://wenku.baidu.com/link?url= ... BmpwFdwfty2mYs_LGo3 http://wenku.baidu.com/link?url= ... aHdkGRws7NcvgIbk8dC 一． QT2440 ARM920T Development Board Introduction QT2440 development board is designed and manufactured by Qinyan Electronics Co., Ltd. It is suitable for users who need to develop or evaluate Samsung S3C2440A. The development board is designed based on development considerations, with simple configuration, concise and clear layout, complete peripherals, standard interfaces, and convenient expansion. It adopts a six-layer board design and stable circuits. The main frequency of S3C2440A is as high as 400MHz, and can reach up to 533MHz. It has low power consumption and high performance, and is suitable for multimedia terminals such as PDA, portable media players, satellite navigation systems, etc. It can also be used as an embedded operating system and embedded hardware design teaching. At present, a large number of products on the market use this chip, which is cheap and in sufficient supply. The QT2440 development board can run Windows CE and Linux operating systems. The Linux kernel is version 2.6. The boot loader is ViVi developed by MIZI of South Korea for Samsung ARM. The GUI is QTOPIA. The file system uses the YAFFS file system. YAFFS is similar to JFFS/JFFS2. It is an embedded file system designed specifically for NAND flash memory and is suitable for large-capacity storage devices. It is a log-structured file system that provides wear leveling and power-off protection, which can effectively avoid the impact of accidental power-off on the consistency and integrity of the file system. The Windows CE system is version 4.2. QT2440 bsp is specially improved on the basis of Samsung SMDK2440, providing a dll driver that can modify the MAC address by modifying the registry, the UART driver changes from supporting only UART0 to supporting UART0-3, RTC power-off retention, and provides the function of saving the registry power-off. It also provides the first nboot source code with a progress bar in China, and downloads the kernel via USB. These efforts have greatly accelerated the progress of user product development. 2. Hardware function1: Processor:S3C2440A-40 400MHz main frequency,ARM 920T core2:ROM:16Mbit NOR FLASH,16bit width3: Electronic disk:512M bit NAND FLASH,8bit width4:RAM: Song]512M bit SDRAM, 133MHz, 32bit width (two pieces) 5: Power supply: 7-24V wide voltage input, LT1765 high efficiency DC/DC step-down, standard 12V power supply 6: Network: 10Mbps low power embedded dedicated Ethernet network chip CS8900A-CQ3, interface is standard RJ45 socket, Integrated network transformer, safe and reliable 7: Serial port, [font=宋体,3 serial ports, two of which have handshake signals, which can be connected to a modem or GPRS. COM3 is a 3-wire system and IRDA shares the CPU's UART2 signal. Only one of COM3 and IRDA can be used at the same time. 8: IRDA: Reserved RPM851A infrared transceiver module, users can install it by themselves, and the standard configuration does not require welding. Shared with COM3 9: LCD interface: supports CSTN, TFT and other LCD 10: Camera interface: reserved 30pin socket for users to connect digital cameras 11: Audio interface: stereo audio input and output interface, plus one microphone input 12: USB HOST: 2 USB HOST interfaces, USB FULL SPEED. Can be expanded by external HUB. 13: USB DEVICE: 1-way USB DEVICE interface, USB FULL SPEED 14: SD card interface: supports SD/MMC and SDIO devices 15: Bus expansion: provides external expansion through 96-pin high-reliability European socket, 32*3 arrangement, integrated bus and other signals that may be used. The external bus is isolated by a high-speed bidirectional buffer to ensure system safety. 16: PCMCIA: Reserved PCMCIA chip and PCMCIA socket (on the back of the board), standard configuration without soldering. 17: JTAG interface: ARM standard 20-core JTAG interface 18: RTC clock: S3C2440A internally integrated, externally provided RTC battery, socket installed, replaceable 19: Dual clock design: Active crystal oscillator + passive crystal oscillator design, users can choose one or both clocks at the same time, which is convenient for evaluation. 20: The circuit does not use any encryption measures, does not use CPLD and other devices, to ensure that users can use it 100% for the project. 3. Product pictures, click to see the big picture 4. QT2440 Development Board Resources Software Features (LINUX): | SoftwareComponentsDescription | Remarks | | Burn NOR Flash and NAND Flash through Jtag port | and use with the Jtag debugger (Wiggler) provided by our company | BootLoader | NOR Flash startup, USB download | Support USB download program to SDRAM and run | NAND Flash startup, Vivi | Flash partitioning, burning, etc. | Online Upgrade | Support online update of Flash firmware under Linux | Other functions | | Linux kernel | Kernel 2.6.13 | Linux kernel version | Various common file systems | Support ROM/CRAM and other file systems | Other functions | | Device driver | UART driver | Serial port communication | USB driver | USB host OCHI driverUSB device driver, including U disk, mouse, keyboard, etc. | LCD driver | Frame Buffer | Touch screen driver | Touch screen input | Audio driver | Audio input and output | Ethernet driver | Ethernet communication | Applications | Busybox | Busybox 1.0.0-pre10, combines almost all the basic Linux commands | QT/E applications | QT/E 2.3.1 | mpegplayer | Mp3,mpeg playback | Mediaplayer | Video player software based on QT/E |
Software Features (WINCE): Software Components Function Description Notes Jtag Flash Programming NAND Programming via Jtag Port Flash, provide NBOOT, quickly start WINCE and use with the Jtag debugger (Wiggler) provided by our company BootLoader NBOOT, provide full source code The time for powering on and starting WINCE does not exceed 7 seconds, and the boot screen has a progress bar. Eboot Used for WINCE kernel burning, update kernel via USB WINCE kernel WINCE.NET 4.2 Handheld devices Flash folder, data permanent storage Support Flash folder, established in NAND FLASH Device driver UART driver Serial communication USB driver USB host OCHI driverUSB device driver, including U disk, mouse, keyboard, etc. Support various types of TFT true color LCD Touch screen driver Audio driver Ethernet driver Pocket IE, Internet browsing4]PCMCIA driver CF devices can be used through PCMCIA adapter card SD card driver Supports SD cards of various types and capacities, hot-swappable with write protection Betaplay Supports the playback of almost common media files in various formats Navigation support, serial port GPS direct support Supports common navigation software on the market, no special settings are required, and it can be run directly, such as Lingtu Tianxingzhe PPC version, Chengjitong PPC version and other common domestic navigation software. UP-TECH s3c2410 dvk (180 yuan)
References: http://wenku.baidu.com/link?url=u5_y7CqePbiC-SxGP5wsEQpDNtQbH7fePrWAuTJ7XNyiR4ComMs3IOYnnQ9Wky5nqKN2qxVWN706Hc_tjy8puukwb-lZ0kfiUo9PO0DymcO http://blog.sina.com.cn/s/blog_6035432c0100o4fb.html
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