This presentation covers the basic overview of the FPGA impact in the consumer's electronics and some projects overview that was accomplished by using FPGA as a controller

1. INTRODUCTION TO FPGA SPARTAN 6 FAMILY
FPGA TEMPERATURE BASED MOTORIZED COOLING
SYSTEM
DESIGN OF BOUNCING BLOCK WITH VGA.
@geeks_explorer
Vikrant Thakur
12 may 2018
@geeks_explorer

2. 1.Programmable Logic
2.Evolution: TTL  PLA  CPLD  FPGA  ASIC
3.Development and research aspects
4.Using FPGA for high speed data processing
5.Reprograme ability which distinguishes FPGAs from
Application Specific Integrated Circuits

3. Programmable Logic is Found
Everywhere!

4. WHY FPGA?
• In early years the digital circuits were designed manually using the
techniques such as Boolean expressions , circuit schematics ,
Karnaugh maps etc. Most of the people used schematic based soft
wares like p spice , h spice etc.
• With the increasing device densities the choice of this traditional
methods has become limited.
• let us consider a design ,a 16 x 16 multiplier with schematic capture
and using the HDL.
• The multiplier is a complex arrangement of adders and registers . In
the present case we have two 16 –bit inputs and one 32-bit product
output .So , a total of 64 I/O s. Approximately the circuit requires
6000 equivalent gates.
• Designing circuit by arranging 6000 gates requires lot of time and
energy. In order to compensate that time and energy along with
faster processing speed a company came up with solution called
FPGA which can be programed with language VHDL (hardware
description language).

5. Xilinx Spartan 6 FPGA board Project Board
Board configuration:
16 Nos. Point LEDs (Logic Output)
2 Nos. of Push Buttons
Two UART(RS232)
12-Bit SPI ADC (2 channel)
12-Bit SPI DAC
Temperature Sensor LM35
5V SPDT Relay
Buzzer (Alarm)
Reset Button | Power-on Indication
JTAG (Program/Debug)
40 Pin and 20 Pin I/O Expansion Connector
On-Board Voltage regulators +5V | +3V3 |
+1V2
FPGA Module
Device : Spartan6
(XC6SLX9-TQ144)
Memory : 4MB - PROM
Clock : 50MHz crystal

6. PROJECT OVERVIEW
• In two weeks ,learning how to program FPGA and program
different Led blinking patterns and clock division method.
• In third week we starting working on a project :FPGA based
motorized cooling systems
TEMPERATURE
SENSOR MADE
WITH
THERMSISTOR
ADC
FPGA
(Generating PWM
which controlled the
speed of motor.)
H BRIDGE MOSFET
(Design Controlling
overall movement of
Motor.)

7. ADC (analog to digital converter)
The ADC input is analog signal such a current or voltage form and
output as binary form (0 or 1). MCP 3202 microchip ADC
commutes through SPI interface.

8. Timing Diagram of ADC

9. • PWM BLOCK DIAGRAM :-
Pulse Width Modulation :-
Pulse width modulation (PWM),
or pulse-duration
modulation (PDM),
is modulation technique used
to encode a message into
a pulsing signal.
Although his modulation
technique can be used to
encode information for
transmission, its main use is to
allow the control of the power
supplied to electrical devices,
especially to inertia loads such
as motors.

10. Different PWM signal observed with change in the value received
from ADC which indeed controlled the speed of DC motor.

11. H bridge transistor based circuit

12. Bouncing Ball with VGA interfaced
with FPGA
FPGA
Controlling the
movements
onto screen
along with
graphics
VGA (video
graphics
array)
LED
screen
ALL are communicating with 25 MHZ
clock speed and internal graphics on
screen is controlled by 5MHZ.