From fb98637d3bb00a1570b26613c862ac6085ca996c Mon Sep 17 00:00:00 2001
From: Umberto Baldi <u.baldi@arduino.cc>
Date: Wed, 21 Jun 2023 17:02:30 +0200
Subject: [PATCH] add combine script to make a monolithic bin that can be
 flashed at 0x0 it's based on
 https://github.com/arduino/nina-fw/blob/master/combine.py

---
 libraries/WiFi/extra/combine.py | 38 +++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100755 libraries/WiFi/extra/combine.py

diff --git a/libraries/WiFi/extra/combine.py b/libraries/WiFi/extra/combine.py
new file mode 100755
index 000000000..f377515ce
--- /dev/null
+++ b/libraries/WiFi/extra/combine.py
@@ -0,0 +1,38 @@
+#!/usr/bin/python3
+
+import sys;
+
+booloaderData = open("bootloader.bin", "rb").read()
+partitionData = open("partition-table.bin", "rb").read()
+networkData = open("network_adapter.bin", "rb").read()
+
+# 0x0 bootloader.bin 0x8000 partition-table.bin 0x10000 network_adapter.bin
+
+
+# calculate the output binary size, app offset 
+outputSize = 0x10000 + len(networkData)
+if (outputSize % 1024):
+	outputSize += 1024 - (outputSize % 1024)
+
+# allocate and init to 0xff
+outputData = bytearray(b'\xff') * outputSize
+
+# copy data: bootloader, partitions, app
+for i in range(0, len(booloaderData)):
+	outputData[0x0000 + i] = booloaderData[i]
+
+for i in range(0, len(partitionData)):
+	outputData[0x8000 + i] = partitionData[i]
+
+for i in range(0, len(networkData)):
+	outputData[0x10000 + i] = networkData[i]
+
+
+outputFilename = "ESP32-C3.bin"
+if (len(sys.argv) > 1):
+	outputFilename = sys.argv[1]
+
+# write out
+with open(outputFilename,"w+b") as f:
+	f.seek(0)
+	f.write(outputData)