Honored ContributorHello,
I' ve implemented a web server in the FPGA 1c20 in my University. The University closes my IP obtained by DHCP after 24 hours working. I don't know why. So, I need to restart my system after 24 hours working. How can I implement a reset software not hardware? And, If I init again the twIP stack, can it work out? Thank you
Honored ContributorAre you using one of the Altera Dev. Kits? If so, then it's likely that you can use the reconfig_request_pio to tell the config_controller that it needs to initiate a reconfiguration. You need to write a '0' to this PIO's data register. You should see this PIO in all "standard" and "full_featured" designs.
If you're not using one of the Dev. Kits, then it depends upon how your particular design handles configuration/re-configuration. - slackerHonored Contributor
i' ve implemented a web server in the fpga 1c20 in my university. the university closes my ip obtained by dhcp after 24 hours working. i don't know why. so, i need to restart my system after 24 hours working.
how can i implement a reset software not hardware?
and, if i init again the twip stack, can it work out?
thank you
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--- Quote End --- I suspect a less drastic, and less hacky, approach than resetting your system is to enhance your DHCP software to support renewing addresses. The RFC is http://www.faqs.org/rfcs/rfc2131.html (http://www.faqs.org/rfcs/rfc2131.html). It's relatively straightforward See section 4.4., but basically you need a timer T1 and when this expires you send a DHCPREQUEST
Honored ContributorHey,
This is a way to do a software reset: # define NIOS2_RESET() NIOS2_WRITE_STATUS(0); NIOS2_WRITE_IENABLE(0); ((void(*)(void))NIOS2_RESET_ADDR)() In your main program you just call this "function" and your NIOS will reset. Enjoy ... Karel - GemidisHonored Contributor
if you're not using one of the dev. kits, then it depends upon how your particular design handles configuration/re-configuration.
- slacker
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--- Quote End --- Hi, I use a Stratix II DSP dev. kit. I use the reconfig_request_pio and I write '0' to this PIO's data register : IOWR_ALTERA_AVALON_PIO_DATA(RECONFIG_REQUEST_PIO_BASE, 0); But nothing happens: there is NO reconfiguration anymore! Why?? Sebastien
Honored ContributorOk I found the solution:
IOWR_ALTERA_AVALON_PIO_DIRECTION(RECONFIG_REQUEST_PIO_BASE, 1); IOWR_ALTERA_AVALON_PIO_DATA(RECONFIG_REQUEST_PIO_BASE, 0); IOWR_ALTERA_AVALON_PIO_DATA(RECONFIG_REQUEST_PIO_BASE, 1); SebastienHonored ContributorHi, Is there an equivalent to the reconfig_request_pio on newer dev kits, like the Arria II Gx or Stratix IV Gx? Or, is another method needed, like writing a register in the MAX via the FSM?
