From 714ff2be5675470c73fd7f1d8c551df1b327c666 Mon Sep 17 00:00:00 2001
From: Reinier van der Walle <walle@astron.nl>
Date: Tue, 12 Apr 2022 16:12:46 +0200
Subject: [PATCH] added hex generating script and set bf_weights init to UNUSED
for g_sim = False.
---
.../libraries/sdp/src/python/sdp_hex.py | 52 +++++++++++++++++++
.../sdp/src/vhdl/node_sdp_beamformer.vhd | 3 +-
.../sdp/src/vhdl/node_sdp_filterbank.vhd | 2 +-
3 files changed, 55 insertions(+), 2 deletions(-)
create mode 100644 applications/lofar2/libraries/sdp/src/python/sdp_hex.py
diff --git a/applications/lofar2/libraries/sdp/src/python/sdp_hex.py b/applications/lofar2/libraries/sdp/src/python/sdp_hex.py
new file mode 100644
index 0000000000..1efa228e1a
--- /dev/null
+++ b/applications/lofar2/libraries/sdp/src/python/sdp_hex.py
@@ -0,0 +1,52 @@
+#! /usr/bin/env python3
+###############################################################################
+#
+# Copyright 2022
+# ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
+# P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+###############################################################################
+# Author: Reinier vd Walle
+# Purpose: Generate the hex files for RAM initialization in SDP designs
+###############################################################################
+
+from intelhex import IntelHex
+import struct
+
+for i in range(0,6):
+ f = IntelHex()
+ for j in range(0,2*488):
+ #f.puts(j*4, struct.pack(">I",j))
+ f.puts(j*2, struct.pack(">H",j))
+
+ f.write_hex_file("bf_unit_ss_wide_"+str(i)+".hex", byte_count = 2)
+
+for i in range(0,12):
+ f = IntelHex()
+ for j in range(0,2*488):
+ f[4*j] = 0x00
+ f[4*j + 1] = 0x00
+ f[4*j + 2] = 0x40
+ f[4*j + 3] = 0x00
+ f.write_hex_file("bf_unit_weights_"+str(i)+".hex", byte_count = 4)
+
+for i in range(0,6):
+ f = IntelHex()
+ for j in range(0,1024):
+ f[4*j] = 0x00
+ f[4*j + 1] = 0x00
+ f[4*j + 2] = 0x20
+ f[4*j + 3] = 0x00
+ f.write_hex_file("gains_1024_complex_16b13f_unit_"+str(i)+".hex", byte_count = 4)
diff --git a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd
index 669db80faa..3053b5f21d 100644
--- a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd
+++ b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd
@@ -107,8 +107,9 @@ END node_sdp_beamformer;
ARCHITECTURE str OF node_sdp_beamformer IS
+ -- Note that the sdp library contains src/python/sdp_hex.py to generate hex files.
CONSTANT c_bf_select_file_prefix : STRING := "data/bf_unit_ss_wide";
- CONSTANT c_bf_weights_file_name : STRING := "data/bf_unit_weights";
+ CONSTANT c_bf_weights_file_name : STRING := sel_a_b(g_sim, "data/bf_unit_weights", "UNUSED");
CONSTANT c_nof_masters : POSITIVE := 2;
diff --git a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd
index 149139e4ff..e5634c5516 100644
--- a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd
+++ b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd
@@ -97,7 +97,7 @@ END node_sdp_filterbank;
ARCHITECTURE str OF node_sdp_filterbank IS
CONSTANT c_coefs_file_prefix : STRING := "data/Coeffs16384Kaiser-quant_1wb";
- CONSTANT c_gains_file_name : STRING := "data/gains_1024_complex_16b13f_unit";
+ CONSTANT c_gains_file_name : STRING := "data/gains_1024_complex_16b13f_unit"; -- Can be generated by src/python/sdp_hex.py
CONSTANT c_subband_equalizer_latency : NATURAL := 4;
--
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