Hello, Alex!

All documentation is available on the following websites: https://code.google.com/p/umtrx/ http://umtrx.org/ https://fairwaves.co

If you have any further questions, I'll be glad to answer your questions.

Regards, Andrew Karpenkov

2014-05-05 16:38 GMT+04:00 alex korolev nik135@mail.ru:

Hello All!

Where i can find information about fpga and firmware architecture?

I will be grateful for any information :)

С уважением, alex korolev nik135@mail.ru

Alex, please see my comments below.

asking the question I mean how .rmi file translates in fpga bit file.

After loading fpga, contents load in ram and begin executing?

Fpga image already contain ZPU bootloader image (bootloader.rmi or bootloader_umtrx.rmi). After loading FPGA, ZPU automaticaly have bootloader firmware in internal RAM. This https://github.com/chemeris/UHD-Fairwaves/blob/fairwaves/umtrx/fpga/usrp2/top/N2x0/u2plus_core.v#L433lines in u2plus_core.v correspond for this.

Have you ise project file for umtrx_v2 without useless files?

I'm not sure that correctly understand you. What you mean under useless files? Files that isn't connected with top module file or what?

How i can find which modules are unused?

​

In this doc: https://code.google.com/p/umtrx/wiki/BootingAndSafeMode

what means "FPGA image with built in ZPU bootloader" and "ZPU image" ? at http://people.osmocom.org/ipse/umtrx-v2/current/ we can found 3 files: u2plus_umtrx_v2.bin - ? u2plus_umtrx_v2.bit - FPGA image with built in ZPU bootloader? usrp2p_txrx_uhd.bin - ZPU image?

*u2plus_umtrx_v2.bin* - FPGA image with built in ZPU bootloader. You can download this image into SPI flash over Ethernet by this command: *./usrp_n2xx_net_burner.py --addr=<ip address> --fpga=u2plus_umtrx_v2.bin* You can read more about UmTRX booting process at this pagehttp://umtrx.org/hardware/booting/ .

*u2plus_umtrx_v2.bit* - FPGA image with built in ZPU bootloader. This image needed for you if you wish flash fpga by using programming cable (Xilinx Platform Cable USB, Digilent JTAG HS1 Programming Cable, etc.)

*usrp2p_txrx_uhd.bin* - ZPU image. You can download this image into SPI flash over Ethernet by this command: *./usrp_n2xx_net_burner.py --addr=<ip address> --fw=usrp2p_txrx_uhd.bin*

after zpu toolchain we have usrp2p_txrx_uhd.bin, convert it to

bootloader.rmi and include it to fpga project

No, usrp2p_txrx_uhd.bin is used only for programming ZPU firmware image into flash. You need only bootloader.rmi file which you can find at this directory firmware\zpu\build\usrp2p\bootloader\ after compiling ZPU firmware.

after building we have fpga image with built in zpu image?

Yes.

How include in fpga only zpu loader, not zpu image?

Please, use this command after building ZPU firmware:

cp <UHD-dir>/firmware/zpu_build/usrp2p/bootloader/bootloader.rmi <UHD-path>/fpga/usrp2/top/N2x0/bootloader_umtrx.rmi

And where i can see flash map?

bootloader_utils.hhttps://github.com/chemeris/UHD-Fairwaves/blob/fairwaves/umtrx/firmware/zpu/usrp2p/bootloader_utils.h-for SPI flash which stores FPGA work and safe images and work ZPU image.

P.S. Please, use in further "Reply to all" to keep informed of all in umtrx@lists.osmocom.org. This may be interesting for other people's.

Regards, Andrew Karpenkov

2014-05-07 12:21 GMT+04:00 alex korolev nik135@mail.ru:

Andrew, thnx for your answer.

I have no problems with the fpga assembly, but lack of understanding how this works.

asking the question I mean how .rmi file translates in fpga bit file. After loading fpga, contents load in ram and begin executing?

Have you ise project file for umtrx_v2 without useless files?

Because my ise project, generated from makefile has for example "sd_spi_wb.v " & "ram_loader.v". You say that these files are not needed, i try remove it, the project build without errors.

How i can find which modules are unused?

In this doc: https://code.google.com/p/umtrx/wiki/BootingAndSafeMode

what means "*FPGA* image with built in ZPU bootloader" and "*ZPU* image" ?

at http://people.osmocom.org/ipse/umtrx-v2/current/ we can found 3 files:

u2plus_umtrx_v2.binhttp://people.osmocom.org/ipse/umtrx-v2/current/u2plus_umtrx_v2.bin- ? u2plus_umtrx_v2.bit - http://people.osmocom.org/ipse/umtrx-v2/current/u2plus_umtrx_v2.bit *FPGA* image with built in ZPU bootloader? usrp2p_txrx_uhd.binhttp://people.osmocom.org/ipse/umtrx-v2/current/usrp2p_txrx_uhd.bin- *ZPU* image?

after zpu toolchain we have usrp2p_txrx_uhd.binhttp://people.osmocom.org/ipse/umtrx-v2/current/usrp2p_txrx_uhd.bin, convert it to bootloader.rmi and include it to fpga project after building we have fpga image with built in zpu image?

How include in fpga only zpu loader, not zpu image?

And where i can see flash map?

thanks in advance!

Wed, 7 May 2014 00:40:27 +0400 от Andrew Karpenkov < andrew.karpenkov@gmail.com>:

Alex, please see my comments below.

I found this link: http://novelflash.com/wiki/index.php?title=USRP2_HDL_Primer Is this information is correct?

Correct, but not for UmTRX. UmTRX architecture based on N2x0 USRP, wich haven't ram_loader and sd card.

I don't understand, how .rmi code processed, and how this code executed.

Build instructions for ZPU software (including bootloader.rmi) described here https://code.google.com/p/umtrx/wiki/BuildingUHD.

mkdir <UHD-dir>/firmware/zpu_build

cd <UHD-dir>/firmware/zpu_build

export PATH=$PATH:<path-to-zpu-elf-gcc>

cmake ../zpu make

After this, you need to update the ZPU bootloader in fpga project:

cp <UHD-dir>/firmware/zpu_build/usrp2p/bootloader/bootloader.rmi <UHD-path>/fpga/usrp2/top/N2x0/bootloader_umtrx.rmi

And now, you can compile fpga project:

cd <UHD-path>/fpga/usrp2/top/N2x0

make UmTRX

Where (*.v file)clock description i can found?

All clocks are forming in u2plus.vhttps://github.com/fairwaves/UHD-Fairwaves/blob/fairwaves/umtrx/fpga/usrp2/top/N2x0/u2plus.vfile (pll_clk.xco and pll_rx.xco).

For which purposes ram needed?

RAM is needed to run programs by ZPU.

Regards, Andrew Karpenkov

2014-05-06 10:45 GMT+04:00 alex korolev <nik135@mail.ruhttps://e.mail.ru/compose/?mailto=mailto%3anik135@mail.ru

...

:

Hello, Andrew!

Thanks for links, i have it already.

I needed for fpga project description(architecture & etc).

I found this link: http://novelflash.com/wiki/index.php?title=USRP2_HDL_Primer Is this information is correct?

I don't understand, how .rmi code processed, and how this code executed. Where (*.v file) clock description i can found?

For which purposes ram needed?

Hopefully, not too many questions :)

Thanks for your time!

Mon, 5 May 2014 18:39:29 +0400 от Andrew Karpenkov < andrew.karpenkov@gmail.comhttps://e.mail.ru/compose/?mailto=mailto%3aandrew.karpenkov@gmail.com

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:

Hello, Alex!

All documentation is available on the following websites: https://code.google.com/p/umtrx/ http://umtrx.org/ https://fairwaves.co

If you have any further questions, I'll be glad to answer your questions.

Regards, Andrew Karpenkov

2014-05-05 16:38 GMT+04:00 alex korolev <nik135@mail.ruhttps://e.mail.ru/compose/?mailto=mailto%3anik135@mail.ru

...

:

Hello All!

Where i can find information about fpga and firmware architecture?

I will be grateful for any information :)

С уважением, alex korolev nik135@mail.ru https://e.mail.ru/compose/?mailto=mailto%3anik135@mail.ru

С уважением, alex korolev nik135@mail.ru https://e.mail.ru/compose/?mailto=mailto%3anik135@mail.ru

С уважением, alex korolev nik135@mail.ru