URL
https://opencores.org/ocsvn/xenie/xenie/trunk
Subversion Repositories xenie
[/] - Rev 13
Last modification
- Rev 13 2020-03-20 11:24:49 GMT
- Author: DFC
- Log message:
- Fix and document QSPI configuration flash issue. Read the DOC!
QSPI flash used on Xenie board has potentially dangerous feature - if puwer is lost during access of configuration register it can stop working properly. This may be permanent damage. As configuration register access is needed to switch flash to quad mode it is accessed during Ethernet ecample initialization.
This fix ensures that flash configuration register is accessed only if it is not in quad mode already to minimize to risk. More details are in doc.