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> New MICRO2440 board+3.5-inch screen 128M upgrade SKU189
New MICRO2440 board+3.5-inch screen 128M upgrade SKU189
micro2440 and mini2440 The main differences:
1. With the core board + floor forms the core board with six laminates designed, more stable operation, convenient unit of user development;
2. Button and camera interface to set aside in the LCD liquid crystal screen, the user-friendly design uses;
3. An increase of two serial interface DB9 interface, user-friendly applications in three serial occasions; more 3 TTL-level com extraoral cited;
5.JTAG interface in the core board, even if detached from the floor also will be carried out the system debugging;
6. Software resources is basically the same! If you are using mini2440 carried out prior to product development, migration procedures to micro2440 development board is very convenient!
7.4 USB master port, mini2440 more than 3, more convenient to extend other modules
micro2440 core board with six laminates design and use of a long route in order to meet signal integrity requirements. The development and easy maintenance from the debugging point of view, we have the main chips are placed on the top; for the convenience of plug and leads to more CPU signal pin, the core board with 2.0mm Pitch "U"-type arrangement of pins, so we are also often It is referred to as "U"-type core board-U2440.
micro2440 is actually a minimal system board, which contains the basic power supply circuit (5V supply), reset circuit, the standard JTAG debug port, users debug light, as well as the core of the CPU and memory modules, etc.. FLASH memory cell which contains NAND FLASH and NOR FLASH two types, through the jumper J1 can choose to boot from NAND or NOR. General NOR FLASH is not placed inside the frequently changing BIOS (we use the supervivi), NAND FLASH which is Shaoxie a complete system program (bootloader, kernel, file system, etc.).
Description: Micro2440 floor layout and interface resources as shown above, it is a double-layer circuit board, in order to study and develop a user-friendly reference to the use of the above leads to a variety of common interfaces, and most are concentrated in the circuit board side. Extra IO port and the system bus through the 2.0mm pin pitch extraction
Micro2440 floor resource characteristics
* 1 100M Network RJ-45 interface, using DM9000 LAN chip
* 3 TTL serial interface, they all made an RS232 level shifter
* 4 USB Host (using the USB 1.1 protocol)
* 1 USB Slave (using the USB 1.1 protocol)
* Standard audio input and output interfaces
* An adjustable resistor then AD0, 1, for the AD converter test
* 6 user keys in the WinCE or Linux can be defined as up, down, left, right, TAB, Enter key, 6 buttons can be row seat leads to the use of needles.
* A standard SD card connector
* 1 LCD interface blocks, in order to 40Pin 0.5mm pitch chip interface can be directly connected to our company to provide true color VGA display module or adapter panels
* 1 CMOS camera interface 20Pin 2.0mm pitch pin can be directly connected to the company's CAM130 camera module.
* 10-pin 2.0mm pitch JTAG Interface
* 1 power supply input, +5 V power supply
micro2440 hardware resources configuration:
- Samsung S3C2440A, clocked at 400MHz, the maximum 533Mhz
- SDRAM clock frequency up to 100MHz
- On-board 128M Nand Flash, power-down non-volatile
- On-board 2M Nor Flash, power-down non-volatile, have been installed BIOS (user can replace on their own for other bootloader)
- 1 56 Pin 2.0mm Pitch GPIO Interface PA
- 1 50Pin 2.0mm pitch LCD & CMOS CAMERA Interface PB
- 1 56 Pin 2.0mm pitch system bus interface to PC
- On-board JTAG interface 10Pin 2.0mm pitch
* System clock source and the RTC
- Internal real time clock (additional pick a backup lithium battery)
Micor2440 Protel99SE package (download)
Toppoly 3.5-inch screen with a random package included
1. Micro2440 core plate and a floor
3. DB9 serial cable with a straight
6. Easy JTAG small board (can be carried out with H-JTAG debug single-step simulation) a
9. A beautifully packaged box (for easy transportation and maintenance, you should keep)
10. ARM video tutorial 4DVD additional information on CD-ROM plus 3 complimentary first wife a total of 8! To get you started quickly! ! !
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