Fixing citation in xc7_xcu_brams.txt file. Fixing RAMB36E1 test.

diff --git a/techlibs/xilinx/xc7_xcu_brams.txt b/techlibs/xilinx/xc7_xcu_brams.txt
index 87e659bbc4202e146d8b5f086c56d933bae60e9c..b7c893ff7c59fef2cca74bf76271cb52ec285807 100644 (file)
--- a/techlibs/xilinx/xc7_xcu_brams.txt
+++ b/techlibs/xilinx/xc7_xcu_brams.txt
@@ -1,4 +1,3 @@
-
 bram $__XILINX_RAMB36_SDP
   init 1
   abits 9
@@ -72,6 +71,11 @@ bram $__XILINX_RAMB18_TDP
   clkpol 2 3
 endbram
 
+# The "min bits" value were taken from:
+# [[CITE]] 7 Series FPGAs Memory Resources User Guide (UG473),
+# v1.14 ed., p 29-30, July, 2019.
+# https://www.xilinx.com/support/documentation/user_guides/ug473_7Series_Memory_Resources.pdf
+
 match $__XILINX_RAMB36_SDP
   min bits 1024
   min efficiency 5
@@ -102,7 +106,3 @@ match $__XILINX_RAMB18_TDP
   shuffle_enable B
   make_transp
 endmatch
-
-# [[CITE]] 7 Series FPGAs Memory Resources User Guide (UG473),
-# v1.14 ed., p 29-30, July, 2019.
-

diff --git a/tests/arch/xilinx/memory_params.ys b/tests/arch/xilinx/memory_params.ys
index 657629e0f20098e63d75cef33d1475ccef643a99..c1b0ca489d5c07ce7c63776266fe13ad813faf27 100644 (file)
--- a/tests/arch/xilinx/memory_params.ys
+++ b/tests/arch/xilinx/memory_params.ys
@@ -37,10 +37,10 @@ cd sync_ram_sdp
 select -assert-count 0 t:RAMB18E1
 select -assert-count 4 t:RAM128X1D
 
-# More than 18K bits and addr <= 36: -> RAMB36E1 
+# More than 18K bits, data width <= 36 (TDP), and address width from 10 to 15b (non-cascaded) -> RAMB36E1 
 design -reset
 read_verilog ../common/memory_params.v
-chparam -set ADDRESS_WIDTH 15 -set DATA_WIDTH 1 sync_ram_sdp
+chparam -set ADDRESS_WIDTH 10 -set DATA_WIDTH 36 sync_ram_sdp
 synth_xilinx -top sync_ram_sdp
 cd sync_ram_sdp
 select -assert-count 1 t:RAMB36E1