Hello, I am using FFT v.3.2 core from Xilinx to implement FFT algorithm on FPGA. I would like to download .dat file as my input (which is digital representation of sinusoidal wave shown below) to test the real-time functionality 0 30273 23170 -12539 -32767 -12539 23170 30273 I'm not sure if the above data would show up in the correct format in the newsgroup, but each line represents a point on sine line (.dat file taken from sample files on Xilinx website - sine_9_375mhz.dat). Now, I would like to download the project into FPGA and test (using .dat file) it. Is there a way to download .dat file into FPGA block memory? The connectors I have: 1) Parallel IV cable 2) CF card The software I have (all full educational versions): 1) Xilinx ISE 2) Chipscope Pro 3) FPGA Advantage I do not currently have A/D converters on FPGA board. I received a suggestion that I can use counter to represent the sine wave; however, I would need to perform further operations on the data (which would be different than constant frequency sinusoidal wave), so using counters to create those signals would not be the optimal solution for me. Thanks, Vitaliy Ryerson University
FFT on Virtex-II Pro (how to download .dat file?)
Started by ●December 8, 2006
Reply by ●December 8, 20062006-12-08
Vitaliy wrote:> Hello, > > I am using FFT v.3.2 core from Xilinx to implement FFT algorithm on > FPGA. I would like to download .dat file as my input (which is digital > representation of sinusoidal wave shown below) to test the real-time > functionality > > 0 > 30273 > 23170 > -12539 > -32767 > -12539 > 23170 > 30273 > > I'm not sure if the above data would show up in the correct format in > the newsgroup, but each line represents a point on sine line (.dat file > taken from sample files on Xilinx website - sine_9_375mhz.dat). > > Now, I would like to download the project into FPGA and test (using > .dat file) it. Is there a way to download .dat file into FPGA block > memory? > > The connectors I have: > 1) Parallel IV cable > 2) CF card > > The software I have (all full educational versions): > 1) Xilinx ISE > 2) Chipscope Pro > 3) FPGA Advantage > > I do not currently have A/D converters on FPGA board. I received a > suggestion that I can use counter to represent the sine wave; however, > I would need to perform further operations on the data (which would be > different than constant frequency sinusoidal wave), so using counters > to create those signals would not be the optimal solution for me. > > > Thanks, > > Vitaliy > Ryerson UniversityThe easiest way to get data into block memory, assuming it doesn't have to change during operation, is to generate a ROM using COREgen. You can use a .coe format file to initialize the ROM, which is then built into your project so the data is in the blockRAM when the bitstream is loaded. The .coe file is described in the core datasheet. It's a comma delimited list with a selectable radix. HTH, Gabor
Reply by ●December 8, 20062006-12-08
I wouldn't put to much faith in that plan as I have tried something similar to that and putting any serious amount of data into a .coe file crashes corgen. ---Matthew Hicks "Gabor" <gabor@alacron.com> wrote in message news:1165609647.067578.96990@80g2000cwy.googlegroups.com...> > Vitaliy wrote: >> Hello, >> >> I am using FFT v.3.2 core from Xilinx to implement FFT algorithm on >> FPGA. I would like to download .dat file as my input (which is digital >> representation of sinusoidal wave shown below) to test the real-time >> functionality >> >> 0 >> 30273 >> 23170 >> -12539 >> -32767 >> -12539 >> 23170 >> 30273 >> >> I'm not sure if the above data would show up in the correct format in >> the newsgroup, but each line represents a point on sine line (.dat file >> taken from sample files on Xilinx website - sine_9_375mhz.dat). >> >> Now, I would like to download the project into FPGA and test (using >> .dat file) it. Is there a way to download .dat file into FPGA block >> memory? >> >> The connectors I have: >> 1) Parallel IV cable >> 2) CF card >> >> The software I have (all full educational versions): >> 1) Xilinx ISE >> 2) Chipscope Pro >> 3) FPGA Advantage >> >> I do not currently have A/D converters on FPGA board. I received a >> suggestion that I can use counter to represent the sine wave; however, >> I would need to perform further operations on the data (which would be >> different than constant frequency sinusoidal wave), so using counters >> to create those signals would not be the optimal solution for me. >> >> >> Thanks, >> >> Vitaliy >> Ryerson University > > The easiest way to get data into block memory, assuming it > doesn't have to change during operation, is to generate a ROM > using COREgen. You can use a .coe format file to initialize > the ROM, which is then built into your project so the data > is in the blockRAM when the bitstream is loaded. The .coe > file is described in the core datasheet. It's a comma delimited > list with a selectable radix. > > HTH, > Gabor >
