Anonymous
Not applicable
Jul 31, 2018
03:23 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Jul 31, 2018
03:23 AM
Hi,
I have been using SPIS and feeding the TX buffer using DMA. However, the following strange behavior is observed :
- When the output GPIO RS485_IO5 (that is used for debugging and not connected to anything in the board) is enabled, the DMA works.
- If I disable the GPIO (right click - disable) . the DMA stops working ......
This has been confirmed a few times. nothing else is changed in the design/code or the board .....
SPIS mode 0
SPIS tx interrupt is FIFO NOT FULL
DMA drq is set on LEVEL
CY8C5888AXI-LP096
I apologize, but I will not be able to share the design. if data is missing I will provide it in comments.
Labels
1 Reply
Aug 01, 2018
11:25 PM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Aug 01, 2018
11:25 PM
Hello Assaf,
What are all the other resources used in the project ? Does the RX DMA work properly ?
Best Regards,
VRS