FPGA loader: Difference between revisions

From ArmadeusWiki
(installation done by default)
No edit summary
 
(25 intermediate revisions by 5 users not shown)
Line 1: Line 1:
[[Category: FPGA]]
On this page, you will find all the informations needed to use the Linux FPGA loader driver.
On this page, you will find all the informations needed to use the Linux FPGA loader driver.
This driver allows you to load the FPGA of your APF board from Linux userspace/shell (ie FPGA reprogrammation after Linux boot).
This driver allows you to load the FPGA of your APF board from Linux userspace/shell (ie FPGA reprogrammation after Linux boot).
Line 5: Line 7:
Driver is installed in default Armadeus rootfs.
Driver is installed in default Armadeus rootfs.


In the Host directory ''target/linux/modules/fpga/dev_tools/fpga_devtools/'' you will find a script named ''fpgaloader.sh''.  
For the hackers, code is located in ''target/linux/modules/fpga/dev_tools/fpga_devtools/''.


Copy this script on the target and launch it:
== Driver usage ==
# sh fpgaloader.sh
This will load (=modprobe) the driver.


===Remark===
*To upload a new firmware, use the small helper script that can do all the job for you (load driver and then firmware). Just call it with the bitfile (.rbf for APF6SP and .bin for the other boards) as parameter. For example:
The default FPGA version is the Spartan3 200k.  
The version can be changed when loading the module:
<pre class="apf">
<pre class="apf">
  # modprobe fpgaloader fpga_descriptor=0    (for a 200K)
  # load_fpga bramtest_top_apf.bin
</pre>
</pre>
and:
or
<pre class="apf">
<pre class="apf">
  # modprobe fpgaloader fpga_descriptor=1    (for a 400k)
  # load_fpga firmware.core.rbf
</pre>
</pre>


These informations are given by the ''/proc'' interface.
* [[Simple_blinking_LED |  You can find some ready to use bitfiles in ''firmware/leds/blinking_led/bin/'' (blinking LED).]]
 


== Driver usage ==
*The FPGA loader driver is usable through the standard Linux filesystem interface. To read the available configurations, do:
<pre class="apf">
# cat /proc/driver/fpga/loader
</pre>
*The displayed sizes correspond to the different FPGA versions supported by the board:
** 130k: Spartan 200k
** 212k: Spartan 400k


*To upload a new firmware (here ''bramtest_top_apf.bin''), use:
[[Category:FPGA]]
<pre class="apf">
# dd if=bramtest_top_apf.bin of=/dev/fpga/fpgaloader
</pre>

Latest revision as of 14:03, 3 October 2025


On this page, you will find all the informations needed to use the Linux FPGA loader driver. This driver allows you to load the FPGA of your APF board from Linux userspace/shell (ie FPGA reprogrammation after Linux boot).

Driver installation

Driver is installed in default Armadeus rootfs.

For the hackers, code is located in target/linux/modules/fpga/dev_tools/fpga_devtools/.

Driver usage

  • To upload a new firmware, use the small helper script that can do all the job for you (load driver and then firmware). Just call it with the bitfile (.rbf for APF6SP and .bin for the other boards) as parameter. For example:
 # load_fpga bramtest_top_apf.bin

or 

 # load_fpga firmware.core.rbf
Retrieved from "http://wikilegacy.armadeus.com/index.php?title=FPGA_loader&oldid=15195"