my name is Christian and I am refreshing my VHDL skills. That's why I have bought a Zybo Z7-10 board half a year ago. With this board everything worked smoothly -- including the Zybo-Z10-DMA demo. Thank you, Digilent, for this excellent product!
Two weeks ago, I have bought the next bigger board, the Zybo Z7-20. With this, the Zybo-Z20 DMA Audio Demo gets locked up while recording: Using BTN2 for playback works as expected: Playback stops after a few seconds. When you press BTN1 or BTN3, the recording starts, but never stops. If you then press any of the other buttons, you receive the message "still recording...".
To me this looks like there is something wrong with the interrupt indicating that the S2MM DMA transfer is complete.
Please note, that I am not failing to build a new working bitstream in Vivado; I am failing to get the SDK demo running using the pre-built bitstream from the repo! However, if I rebuild the bitstream in Vivado I get identical results. I have already checked the following in order to resolve the issue:
Tried a different development PC --> same problem!
I also checked for possible power supply issues: With USB power (with jumper J16 set to USB) and alternatively a 5V/4A wall power supply (with jumper J16 set to WALL) I get identical results.
****** Vivado v2018.2 (64-bit)
**** SW Build 2258646 on Thu Jun 14 20:02:38 MDT 2018
**** IP Build 2256618 on Thu Jun 14 22:10:49 MDT 2018
(on Linux Mint 19.2 in my case).
Using a Zybo Z7-20 board. Mine has "PB-200-351 REV B" printed on the bottom side of the PCB.
Since the Zybo-Z7-10-DMA demo project is working flawlessly on my Zybo-Z10 board, I think that it is rather unlikely that something is wrong with my development environment or the way that I set up the project in the SDK.
I am struggling for almost one week with this issue. Any helpful hint is very welcome! ?
Has anybody managed to get this demo running on the current version of the Zybo Z7-20? Has anybody the same problem?
Question
cwerner77
Hello,
my name is Christian and I am refreshing my VHDL skills. That's why I have bought a Zybo Z7-10 board half a year ago. With this board everything worked smoothly -- including the Zybo-Z10-DMA demo. Thank you, Digilent, for this excellent product!
Two weeks ago, I have bought the next bigger board, the Zybo Z7-20. With this, the Zybo-Z20 DMA Audio Demo gets locked up while recording: Using BTN2 for playback works as expected: Playback stops after a few seconds. When you press BTN1 or BTN3, the recording starts, but never stops. If you then press any of the other buttons, you receive the message "still recording...".
To me this looks like there is something wrong with the interrupt indicating that the S2MM DMA transfer is complete.
Please note, that I am not failing to build a new working bitstream in Vivado; I am failing to get the SDK demo running using the pre-built bitstream from the repo! However, if I rebuild the bitstream in Vivado I get identical results. I have already checked the following in order to resolve the issue:
https://forum.digilentinc.com/topic/15465-zybo-z7-dma-audio-demo-not-working/ --> I am not working with different clocks
Tried a different development PC --> same problem!
I also checked for possible power supply issues: With USB power (with jumper J16 set to USB) and alternatively a 5V/4A wall power supply (with jumper J16 set to WALL) I get identical results.
These are the steps to reproduce the problem:
****** Vivado v2018.2 (64-bit) **** SW Build 2258646 on Thu Jun 14 20:02:38 MDT 2018 **** IP Build 2256618 on Thu Jun 14 22:10:49 MDT 2018
(on Linux Mint 19.2 in my case).
Using a Zybo Z7-20 board. Mine has "PB-200-351 REV B" printed on the bottom side of the PCB.
Since the Zybo-Z7-10-DMA demo project is working flawlessly on my Zybo-Z10 board, I think that it is rather unlikely that something is wrong with my development environment or the way that I set up the project in the SDK.
I am struggling for almost one week with this issue. Any helpful hint is very welcome! ?
Has anybody managed to get this demo running on the current version of the Zybo Z7-20? Has anybody the same problem?
Best regards,
Christian
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