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Pad S-record data blocks if needed

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Odd length data records are not fully written to a Foenix m68k target
over the debug port. Add a trailing 00 byte to make the data record
length even if needed.
This commit is contained in:
Håkan Thörngren 2022-03-29 16:34:48 -07:00
parent 9e8560f82c
commit b5ddbcd9f2
1 changed files with 11 additions and 3 deletions
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14
C256Mgr/srec.py
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@ -1,5 +1,13 @@
import re
def tailpad(data):
datalen = len(data)
pad = datalen % 4
if pad > 0:
return data.ljust(datalen + pad, '0')
else:
return data
class SRECFile:
"""Read information from a Motorola SREC file."""
@ -52,7 +60,7 @@ class SRECFile:
address = int(m2.group(2), 16)
data = m2.group(3)
crc = int(m2.group(4), 16)
self.handler(address, data)
self.handler(address, tailpad(data))
elif code == 2:
# Unpack a record with a 24-bit address
@ -61,7 +69,7 @@ class SRECFile:
address = int(m2.group(2), 16)
data = m2.group(3)
crc = int(m2.group(4), 16)
self.handler(address, data)
self.handler(address, tailpad(data))
elif code == 3:
# Unpack a record with a 32-bit address
@ -70,4 +78,4 @@ class SRECFile:
address = int(m2.group(2), 16)
data = m2.group(3)
crc = int(m2.group(4), 16)
self.handler(address, data)
self.handler(address, tailpad(data))