CAEN
Electronic Instrumentation
UM6508
–
DT5495 User Manual rev. 0
48
11
Demo Firmware
11.1
Introduction
This chapter describes a set of UFPGA demos that CAEN provides as demonstration of the DT5495 functionalities and
as a guide for developing customized user application firmware.
The wanted demo can be stored only on the application 1 page of the UFPGA FLASH memory.
T
o run a firmware “as it is”, it i
s required to use the functions of the CAEN PLULib library to access the proper registers
(refer to Sect.
Software Tools
). To modify demos and upload the new firmware on the FPGA, a basic knowledge of
VHDL language and Altera Quartus II software are required.
In what follows, the features of the four demos
loaded in the UFPGA’s flash memory will be described.
By default, each demo lights front panel user LED with the following configurations:
Demo
Description
Demo1
LED 0 ON; others OFF
Demo2
LED 1 ON; others OFF
Demo3
LED 1 and LED 0 ON; others OFF
Demo4
LED 2 ON; others OFF
11.2
Demo Structure
All demo projects feature a common file structure:
•
A configuration file (
V2495_package.vhd
), allowing to set the number of CONFIG and MONITOR registers, their
respective base address, the demo ID and the firmware revision. The CONFIG registers are mapped between
0x1000 and 0x17FC, while the MONITOR registers are mapped between 0x1800 and 0x1FFC.
•
A gate and delay block (
gd_control.vhd
), acting as a controller for the GDG (the example in Sect.
Gate and Delay
Demo Description
specifically focuses on the configuration of GDG delays);
•
The local bus slave (
lb_int.vhd
), allowing to read/write the registers needed in the demo operations;
•
The SPI master (
spi_master.vhd
) and interface (
spi_interface.vhd
), allowing the communication to/from the
GDG to be serialized;
•
A demo-specific part, containing core demonstration logic.
11.3
Demo Setup
To run the demo firmware just stored in the application 1 page of the UFPGA FLASH memory, the following instructions
should be followed:
•
Connect to the DT5495 board to read/write registers
•
Set the required configuration through the control register(s).