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67 lines
1.6 KiB
Diff
67 lines
1.6 KiB
Diff
From ebded197f9c12168d61973043fd9ebd5d49528a8 Mon Sep 17 00:00:00 2001
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From: Yangbo Lu <yangbo.lu@nxp.com>
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Date: Mon, 25 Dec 2017 14:11:02 +0800
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Subject: [PATCH] rcw: add a python script for byte swapping
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Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
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---
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Makefile | 2 ++
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byte_swap.py | 32 ++++++++++++++++++++++++++++++++
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2 files changed, 34 insertions(+)
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create mode 100755 byte_swap.py
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diff --git a/Makefile b/Makefile
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index fb55c8b..27e3ba2 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -11,6 +11,8 @@ all install clean:
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@for board in $(BOARDS); do \
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$(MAKE) -C $$board $@ DESTDIR=$(DESTDIR)/$$board; \
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done
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+ chmod 755 ./byte_swap.py; \
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+ ./byte_swap.py ls1046ardb/RR_FFSSPPPH_1133_5559/rcw_1800_qspiboot.bin 8
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release: $(foreach board,$(BOARDS),rcw-$(board)-$(VER).tar.gz)
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diff --git a/byte_swap.py b/byte_swap.py
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new file mode 100755
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index 0000000..7ee4129
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--- /dev/null
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+++ b/byte_swap.py
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@@ -0,0 +1,32 @@
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+#!/usr/bin/env python
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+"""
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+Swap the 4/8 bytes endian except for PBI CRC
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+2016-10-9: Initial version
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+
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+Usage:
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+ ./byte_swap.py <file_name> <byte>
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+"""
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+import sys
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+
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+try:
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+ file_name = sys.argv[1]
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+ byte = int(sys.argv[2])
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+except:
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+ print("Usage: ./byte_swap.py <file_name> <byte>")
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+ print("E.g.: ./byte_swap.py rcw_1600.bin 8\n")
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+ exit
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+
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+with open(file_name,'rb') as file:
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+ tmp = file.read()
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+file.close()
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+
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+with open(file_name + '.swap','wb') as file:
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+ for i in range(0, len(tmp) - 1, byte):
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+ if(tmp[i:i+4].encode('hex')) == "08610040":
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+ #print("PBI CRC command")
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+ file.write(tmp[i:i+8])
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+ break
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+ file.write(tmp[i:i+byte][::-1])
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+file.close()
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+
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+print("Swapped file: " + file_name + '.swap')
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--
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2.7.4
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