DE0-nano

DE0-nano

• This board has been developed by Terasic, Terasic DE0-nano board full documentation and starting example.

Specifications

• FPGA_ Altera Cyclone IV E, EP4C22F17C6 -->
  • Cyclone IV version E
  • C22: ~22'000 Logic Elements (LE)
  • F17: BGA 486 pin package
  • C6: Speed version

• SDRAM:
  • ISSI 42S16160 SDRAM, 4M x16 bits x 4 Banks = 256 Mbits organised in 4M words of 16 bits with 4 banks --> 32 MBytes of data
  • Synchronous SDRAM on rising edge of Clk
  • Needs a PLL in the FPGA to generate it's clock with a negative phase of -3ns from the controller and system Clock
  • To use it in Quartus Qsys or SOPC Builder, select an PLL with :
    • c0 clk for all the system (50 MHz is a good option)
    • c1 to connect as external conduit on the SDRAM Clk pin (50 MHz is a good option)

• EPCS4
  • 64 Mbits of Flash memory for a default design to be programmed on the board
  • Can be initialized with a FPGA design and if a NIOSII processor included (softcore processor) the software to make it running

• I2C memory
  • 2 kbits of EEPROM memory on i2c, as 256 x 8
  • i2c addresse: 1010 000 R/nW -->
    • 0xA0 for Write
    • 0xA1 for Read

• LEDs & buttons
  • 8 green LEDs on the board with direct access, active High to turn the LED ON
  • 2 buttons with debounce, active LOW when pressed, could be used as static Clock or Reset_n
  • 4 DIPs switches

• Accelerometer
  • 3D G-sensor ADI ADXL345, 13 bits resolution
  • SPI or i2c interface
  • 1 interrupt line

• A/D converter
  • NS ADC 128S022, 8 channels, 12 bits resolution
  • 50 ks/s to 200 ks/s
  • SPI connection

• Connectors
  • 2 x 40 pins male header on top (GPIO0 and GPIO1) with:
    • 2x Gnd
    • 1x 5V Power
    • 1x 3.3V Power
    • 2x Input only (GPIO0_IN, GPIO1_IN)
    • 34x I/O (GPIO0 and GPIO1)
  • 1x 26 pins male on Bottom (GPIO2) with:
    • 1x Gnd
    • 1x 3.3V Power
    • 3x Input only (GPIO2_IN)
    • 13x I/O (GPIO2)
    • 8x Analog Inputs (IN0..IN7)
  • 1 USB
    • Power supply of the board
    • Debugging through USB-JTAG interface
  • External 2 pins for 5V power

• Oscillator
  • 50 MHz oscillator

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