Hi,
I've tried to port the example from the mSGDMA wiki page to the DE2-115 board. Instead of the DDR-Controller I use the SDRAM controller.
Now I've got the following strange issue.
(1) I can run the example code, but the interrupt never fires.
(2) Via the debugger I can confirm that the actual copy process happened and did finish
(3) When I try to redownload the software program it hangs immediately after start at the alt_ic_isr_register() call
(4) Only reprogramming of the whole fpga design allows another run.
has anyone encountered a similar behaviour before? I assume I messed up somewhere at the QSys configuration or at the linker section but I'm quite clueless right.
Thanks for any help.
I've tried to port the example from the mSGDMA wiki page to the DE2-115 board. Instead of the DDR-Controller I use the SDRAM controller.
Now I've got the following strange issue.
(1) I can run the example code, but the interrupt never fires.
(2) Via the debugger I can confirm that the actual copy process happened and did finish
(3) When I try to redownload the software program it hangs immediately after start at the alt_ic_isr_register() call
(4) Only reprogramming of the whole fpga design allows another run.
has anyone encountered a similar behaviour before? I assume I messed up somewhere at the QSys configuration or at the linker section but I'm quite clueless right.
Thanks for any help.