Getting Started Guide for LX9 and Nexys3 User Manual
Analog Essentials
Getting Started Guide
2
For LX9 and Nexys-3
Analog Essentials Collection modules
The table below lists the peripheral modules included in the collection, along with a description and interface type.
Part
Functionality
Interface
DS1086LPMB1#
I
2
C spread-spectrum EconOscillator™
I
2
C
DS3231MPMB1#
I
2
C real-time clock
I
2
C
MAX3232PMB1#
RS-232 transceiver
UART
MAX4824PMB1#
Octal relay driver
GPIO
MAX5216PMB1#
High-performance 16-bit DAC
SPI/GPIO
MAX5487PMB1#
Dual 256-tap digital potentiometer
SPI
MAX5825PMB1#
Octal 12-bit DAC
I
2
C
MAX7304PMB1#
16-port GPIO and LED driver
I
2
C
MAX9611PMB1#
Current-sense amplifier with op amp and ADC
I
2
C
MAX11205PMB1#
16-bit delta-sigma ADC with 2-wire interface
GPIO
MAX14840PMB1#
RS-485 transceiver
UART/GPIO
MAX14850PMB1#
6-channel, 600V galvanic isolator
SPI/UART
MAX31723PMB1#
Digital thermometer
SPI
MAX31855PMB1#
Thermocouple-to-digital converter
SPI
MAX44000PMB1#
Ambient light and proximity sensor
I
2
C
Included Files
The top level of the hardware design is a Xilinx ISE® Project Navigator Project (.xise) for Xilinx ISE version 13.4. The
Verilog-based HDL design instantiates the Microblaze™ core, the support hardware required to run the Microblaze, and
the peripherals (I
2
C, SPI, GPIO, and UART) which interface to the Pmod ports. This is supplied as a Xilinx software
development kit (SDK) project which includes a demonstration software application to evaluate each module’s
functionality. The lower level c-code driver routines are portable to the user’s own software projects.
Prerequisites
• Xilinx ISE13.4 or a later version must be installed on the development PC, along with a license for Xilinx EDK/SDK.
• To modify the FPGA code or the software, the user should have a basic understanding of Xilinx Project Navigator
(ISE) development tools, I
2
C, SPI, GPIO buses, ANSI C, and (ideally) the Xilinx Embedded Development Kit toolset.
• Maxim Analog Essential Project Source (downloadable from
www.maxim-ic.com/FPGA-modules)
• One or more of the peripheral modules boards in the Analog Essentials collection.