SPECIFICATIONS

Regarding the materials
1)All the products sold in our store are various core boards, targeted at customers with certain development capabilities. There are no other introductory materials or materials available
The content mainly includes design drawings and test codes (there is an introduction to the complimentary materials below the webpage).
2)Customers who need to select a model should refer to the product information introduction at the bottom of the webpage. In principle, no materials will be provided before placing an order, and they will be sent after shipment
Download the link from Baidu Netdisk by yourself
3) If you do not receive the link to the materials for a long time after placing an order, please contact customer service proactively

Regarding after-sales service
1)Each board will be tested before shipment and, in principle, there will be no quality issues.
2) Please ensure that the goods are in good condition before receiving them. To protect our rights, all products will be photographed and saved before shipment.
3) The products sold are not eligible for return.

Note: If the user purchases the model EP4CE22E22, then 1, 2, 3, 34, 38, 52, 53, 54，55, 70, 73, 74, 75, 84, 124, 126, 127, 128, 129 and 138 Pins are special Function pin. It cannot be used as a user IO port.

The onboard chip: EP4CE6E22C8N/EP4CE10E22C8N/EP4CE22E22C8N
Development board size: 52mm *52mm
Power supply mode: 5V/500mA(can be powered by pin headers or mini USB)
PCB lamination: Four layers
Download method: JTAG
Development environment: Quartus Il
Complimentary accessory: miniUSB power cord

Development board circuit
The complete power supply system only requires an external input of 5V power to operate
2.5070 package 50MHz active crystal oscillator, the main frequency can be set by yourself through PLL
3. A power indicator LED indicates the power-on status of the circuit board
4. A test LED, which can be controlled by the user through the program by themselves
5. A test button, which users can control by themselves through the program
6. 16Mbit FLASH on board (for co-loading programs)

Development board
miniUSB socket (5V/500mA)
2. Anti-reverse insertion 10P/2.54mm standard JATG socket
3.3 rows of DIP16*2-2.54mm standard pitch pin headers lead out all 10 ports of the chip, totaling 87 (IO electrical average is.
External interface 3.3v cannot be modified

Complimentary materials
1. Development board drawing: Developed by AltiumDesiger 09
Schematic source file, PCB diagram source file (traces are missing), PDF format schematic PCB diagram
2 Test code for the development board