Difference between revisions of "FPGA loader"
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</pre> | </pre> | ||
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| − | * | + | *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 as parameter. For example: |
<pre class="apf"> | <pre class="apf"> | ||
# load_fpga bramtest_top_apf.bin | # load_fpga bramtest_top_apf.bin | ||
</pre> | </pre> | ||
| + | |||
* [[Simple_blinking_LED | You can find some ready to use bitfiles in ''firmware/leds/blinking_led/bin/'' (blinking LED).]] | * [[Simple_blinking_LED | You can find some ready to use bitfiles in ''firmware/leds/blinking_led/bin/'' (blinking LED).]] | ||
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==Troubleshots== | ==Troubleshots== | ||
| + | === APF27 === | ||
*If the dd is executed just after the modprobe an error may occur (no space left on device). This can be avoid with this small script: | *If the dd is executed just after the modprobe an error may occur (no space left on device). This can be avoid with this small script: | ||
<pre class="apf"> | <pre class="apf"> | ||
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dd if=bramtest_top_apf.bin of=/dev/fpgaloader | dd if=bramtest_top_apf.bin of=/dev/fpgaloader | ||
</pre> | </pre> | ||
| − | + | === APF51 === | |
| + | * do not use a file stored in flash to load the FPGA. Please copy it to the RAM (/tmp) before. | ||
| + | |||
| + | All the troubleshots are handled by the ''/usr/bin/load_fpga'' utility, mentionned above. | ||
[[Category:FPGA]] | [[Category:FPGA]] | ||
Revision as of 07:42, 11 May 2011
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
# modprobe fpgaloader fpgaloader v0.9
- The FPGA loader driver is usable through the standard Linux filesystem interface. To read the available configuration, do:
# cat /proc/driver/fpga/loader spartan slave serial <<-- on APF9328 spartan slave parallel <<-- on APF27
- 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 as parameter. For example:
# load_fpga bramtest_top_apf.bin
 |
Note: On apf9328_devfull and on apf27_dev a LED is already soldered on fpga. For apf27_dev the fpga bank1 must be powered with 3.3V (connect pin 39 and pin 1 on J20 header) |
Troubleshots
APF27
- If the dd is executed just after the modprobe an error may occur (no space left on device). This can be avoid with this small script:
modprobe fpgaloader
while [ ! -c /dev/fpgaloader ]; do
usleep 1000
done
dd if=bramtest_top_apf.bin of=/dev/fpgaloader
APF51
- do not use a file stored in flash to load the FPGA. Please copy it to the RAM (/tmp) before.
All the troubleshots are handled by the /usr/bin/load_fpga utility, mentionned above.
