Description: For keeping the nets during synthesis or in mapping process, the user can use the attribute /* synthesis syn_keep=1 nomerge="on"*/ on the nets or other signal wanted to retain. Refer to this FAQ: ...
In Lattice Diamond, when user set up the strategies for either "MAP TRACE" or "Place & Route TRACE", select "Check unconstrained Path" to "True". TRACE will list out all the connections that are not covered by preferences. To make better use of this ...
In Diamond version 3.14, there is a bug where it incorrectly limits the number of PLLs in the device to 0 for LFE5U-12F. Example error message: ERROR - (device oversize error). The number of PLL components needed (1) exceeds the number available. ...
Description: When starting Clarity Designer > Double-clicking on 'PCS' under Architecture_Modules > Clicking "Configure" button The following error will appear: Error - runtime variable "print_trimmed_nets" is not declared The issue is due to a bug ...
Description: When compiling a design on Diamond with multiple unassigned output ports, the below error might occur. "ERROR - par: I/O initial placement is unsuccessful. Check the I/O placement constraints / user preferences (such as pin locking) ...