Bar Graph

This Example is the template for wishbone intercon
The testcase consist of:
1. Wishbone Slave 1: PMOD 3 (Bar Graph 0)
2. Wishbone Slave 2: PMOD 4 (Bar Graph 1)

Address Map

      Wishbone Memmap
      Slave 0:  0x0000
      Slave 1:  0x0040
  

Wishbone intercon automatically routes signals and data to the appropriate slave depending on the memmap

Flash the FPGA with bar_graph bitstream

cd examples/bar_graph

# If the fpga tools present on BBB
make

# Else scp the .bin file in Beaglewire/examples/bar_graph
# In host computer go to Beaglewire/examples/bar_graph
# make
# Command to send it to FPGA: 
# scp bar_graph.bin debian@192.168.6.2:/home/debian/Beaglewire/examples/bar_graph

# Loading SPI flash after FPGA reset, it will be boot up on SPI.
make load_spi

# Reset the FPGA for running bitsream (RST Button on BeagleWire)
  

Running bar_graph script for transferring the memory words from ARM to FPGA (LEDs)

Before running the bar graph script ensure that bridge libs are compiled.
```
cd Beaglewire/bridge_lib/
make
```

Once the bridge libs are compiled:

cd Beaglewire/examples/bar_graph
chmod +x bar_graph.sh
sudo ./bar_graph.sh
  

TO DO

Generalize C code with the help of memmap