The objective of this projectis to design, model and simulate an autocorrelation
generator circuit using 4-bit LFSR. the register and LFSR will used D flip-flop and some
gates. By the autocorrelation concept, there should be 2 same length vectors, for calculating
the autocorrelation , we have to design the register for storing the original vector and the
shifter for make time delay.
一個簡單的串口文件發(fā)送接受程序。可以調(diào)節(jié)發(fā)送延遲。里面的類可以應(yīng)用在其他的環(huán)境下。A simple program that can send a file through a serial port. The delay and other parameters are changable.
This simple program help you to calculate parameters for a pid controller for first order systems wiith delay using different method: Ziegler Nichols,Cohen coon,IMC...
Mobile phones are constantly decreasing in size, thereby complicating the acoustical
functionality. Signal processing methods can be used to partially mitigate
this problem. In this paper we suggest a method which uses multiple spectral
subtraction functions and two microphones, introducing only a short signal delay.
This leon3 design is tailored to the Altera NiosII Startix2
Development board, with 16-bit DDR SDRAM and 2 Mbyte of SSRAM.
As of this time, the DDR interface only works up to 120 MHz.
At 130, DDR data can be read but not written.
NOTE: the test bench cannot be simulated with DDR enabled
because the Altera pads do not have the correct delay models.
* How to program the flash prom with a FPGA programming file
1. Create a hex file of the programming file with Quartus.
2. Convert it to srecord and adjust the load address:
objcopy --adjust-vma=0x800000 output_file.hexout -O srec fpga.srec
3. Program the flash memory using grmon:
flash erase 0x800000 0xb00000
flash load fpga.srec
The present paper deals with the problem of calculating mean delays in polling systems
with either exhaustive or gated service. We develop a mean value analysis (MVA) to
compute these delay figures. The merits of MVA are in its intrinsic simplicity and its
intuitively appealing derivation. As a consequence, MVA may be applied, both in an
exact and approximate manner, to a large variety of models.
This example streams input from a ADC source to a DAC.
An analog signal is acquired block-by-block into SDRAM from the ADC (an AD9244 in this example).
The frames are then output with a one-frame delay to the DAC (an AD9744 in this example).
In this example, no processing is done on the frames. They are passed unaltered.
