ymiler
Contributor
ContributorALM structure
Hi
I implemented AND gate and sample it by FF :
Code :
wire b,c ;
reg a_sam;
always @(posedge clk)
a_sam <= b && c;
When the Fitter (finalize) step is finised I opened...
Forum Discussion
ShengN_altera
Super Contributor
Super ContributorHi Yishay,
Top-up to the previous post, check this link https://www.intel.com/content/www/us/en/docs/programmable/683699/current/normal-mode.html:
Normal mode allows two functions to be implemented in one Intel® Stratix® 10 ALM, or a single function of up to six inputs. (Means combination of two LUTs or one LUT with 6 inputs)
The following figure (check the pic in the link) shows a combination of different input connections for the LUT mode.
The Intel® Quartus® Prime Compiler automatically searches for functions using common inputs or completely independent functions to be placed in one ALM to make efficient use of device resources. In addition, you can manually control resource use by setting location assignments.
Check this link https://www.intel.com/content/www/us/en/docs/programmable/683699/current/alm-output.html:
The following figure shows the Intel® Stratix® 10 ALM connectivity. In the Intel® Quartus® Prime Resource Property Editor, the entire ALM connection is simplified. Some routings will be routed internally by the Intel® Quartus® Prime software.
The "select" value is datae. These are so far I can find based on document.
Thanks,
Best Regards,
Sheng
ymilerContributor
ContributorHi Sheng,
Can you explain please why I dont succeed to change the F0 & F1 masks in the attach ALM ?
my tcl includes the command : modify_lutmask -to eco_sig_1_cZ~0 -mask 0x00000000FFFFFFFF
after ECO processing I get the following result :
" Error(19796): Atom 'eco_sig_1_cZ~0' (atom id: 2928): Oterm DB_OPORT_COMB_OUT : 0 depends on unconnected iterm type DATAF
There is no DATAF in the Resource Propery Viewer ??
Yishay
