Echelon FTXL Hardware - Manual (Page 72)

64 Using the Bring-Up Application to Verify FTXL Hardware Design
Overview
This appendix describes the Bring-Up application that is included with the FTXL
Developer’s Kit. This application implements a series of tests that exercise the
hardware interface between the Nios II processor, the FTXL 3190 Free Topology
Smart Transceiver, the FTXL service pin, and the FTXL service LED. You
should run these tests to verify a new or modified FTXL device’s hardware
design.
The Bring-Up application requires a Nios II hardware design that contains the
FTXL components and a STDOUT display device. In addition, the device must
have a JTAG or similar interface between the device and the PC that will run the
Nios IDE. The Bring-Up application can run with or without the Micrium
μC/OS-II operating system.
Because the Bring-Up application is based on the FPGA hardware reference
design used by the example applications that are included with the FTXL
Developer’s Kit, you might have to modify the FtxlHal.c file if your hardware
design differs from the reference design (for example, if your hardware design
uses different signal names or different logic).
Recommendation: While running the tests, connect a digital analyzer to the
FTXL Transceiver communications pins, the service LED pin, and the service pin
so that you can externally verify the signals on the pins. The test descriptions in
Running the Tests on page 70 include logic analyzer traces that were generated
using the TechTools DigiView™ Logic Analyzer.
Application Framework
The Bring-Up application consists of one C source file (FtxlBringupApp.c) that
includes the series of tests. This file, in turn, includes the FtxlHal.h file and uses
functions from the FtxlHal.c file. All of these files are included in the Bring-Up
application project folder.
Interrupt Functions from the FTXL HAL
The FTXL interface defines interrupts from two sources: the FTXL Transceiver
and the service pin.
The FtxlBringupApp.c file defines the following callback handler functions to
process interrupts:
• LonDriverTransceiverIrq()
Called to process an interrupt from the FTXL Transceiver.
• LonIsrServicePin()
Called to process an interrupt from the service pin.