====== Nexsys-3 PmodBT2 Demo ======

==== Introduction ====

This is a port of the Nexys3 GPIO ISE demo so that it uses the PmodBT2 instead of the onboard USB-UART bridge. It demonstrates the ability of the PmodBT2 to be used as a drop-in wireless UART solution.

===== Required materials =====

  * Nexys3
  * PmodBT2
  * Host computer with bluetooth and general purpose Terminal program (e.g. TeraTerm or Hyperterminal). Xilinx ISE and/or Digilent Adept will also need to be installed.

===== Instructions =====

  - Download the project here: {{:nexys:nexys3:nexys3_ise_gpio_uart.zip|}}
  - Unzip the project and build it using Xilinx ISE, or simply grab the pre-built .bit file called gpio_demo.bit
  - Short JP4 on the PmodBT2. Leave all other jumpers unshorted.
  - Attach the PmodBT2 to Pmod port JA on the Nexys3.
  - Connect the PROG port of the Nexys3 to your host computer and power it on.
  - Use Adept or iMPACT to program the Nexys3 with the .bit file
  - Connect to the PmodBT2 using your bluetooth software. It should appear as a device called "RNBT-xxxx". If prompted for a password, use 1234 (some devices can auto-negotiate a pin and this isn't necessary). When successfully connected, the software should have created a virtual com port for the PmodBT2.
  - Open your terminal software and connect it to the PmodBT2 COM port @ 9600 baud, 1 stop bit, 8 data bits, no parity. 
  - Try pressing the different (non-red) pushbuttons on the Nexys3. You should now be able to see UART output from the demo running on the Nexys3 inside your terminal window.

===== Additonal Notes =====

You can also connect to the PmodBT2 using an Android phone with Bluetooth and a terminal app like BlueTerm. Iphones cannot be used to communicate with the PmodBT2.

{{tag>learn programmable-logic tutorial nexsys-3 pmodbt2}}