Hi,
I needed to be able to selectively erase the "info" flash memory
segments and ended up with the following patch. It also fixes a couple
of typos. I'm not sure it's a good idea to hardcode the info memory
segment addresses though...
RCS file: /cvsroot/mspgcc/pyjtag/jtag.py,v
retrieving revision 1.12
diff -u -5 -p -r1.12 jtag.py
--- jtag.py 2 Jun 2003 00:03:44 -0000 1.12
+++ jtag.py 26 Jun 2003 17:04:18 -0000
@@ -243,10 +243,20 @@ class JTAG:
def actionMainErase(self):
"""Erase the MAIN flash memory, leave the INFO mem"""
sys.stderr.write("Erase Main Flash...\n")
_parjtag.memerase(ERASE_MAIN, 0xfffe)
+ def makeActionSegmentErase(self, address):
+ """Selective segment erase"""
+ class SegmentEraser:
+ def __init__(self, segaddr):
+ self.address = segaddr
+ def __call__(self):
+ sys.stderr.write("Erase Segment @ 0x%04x...\n" % self.address)
+ _parjtag.memerase(ERASE_SGMT, self.address)
+ return SegmentEraser(address)
+
def actionEraseCheck(self):
"""check the erasure of required flash cells."""
sys.stderr.write("Erase Check by file ...\n")
if self.data is not None:
for seg in self.data:
@@ -327,12 +337,14 @@ General options:
Program Flow Specifiers:
-e, --masserase Mass Erase (clear all flash memory)
-m, --mainerase Erase main flash memory only
+ --eraseinfo Erase info flash memory only
+ --erase=address Selectively erase segment at the specified address
-E, --erasecheck Erase Check by file
- -p, --programm Program file
+ -p, --program Program file
-v, --verify Verify by file
The order of the above options matters! The table is ordered by normal
execution order. For the options "Epv" a file must be specified.
Program flow specifiers default to "p" if a file is given.
@@ -383,11 +395,12 @@ def main():
sys.stderr.write("MSP430 parallel JTAG programmer Version: %s\n" % VERSION)
try:
opts, args = getopt.getopt(sys.argv[1:],
"hl:weEmpvrg:Du:d:s:xbiITfR:S",
["help", "lpt=", "wait"
- "masserase", "erasecheck", "mainerase", "programm",
+ "masserase", "erasecheck", "mainerase", "erase=",
+ "eraseinfo", "program",
"verify", "reset", "go=", "debug",
"upload=", "download=", "size=", "hex", "bin", "ihex",
"intelhex", "titext", "funclet", "ramsize=", "progress"]
)
except getopt.GetoptError:
@@ -407,11 +420,21 @@ def main():
toinit.append(jtag.actionMassErase) #Erase Flash
elif o in ("-E", "--erasecheck"):
toinit.append(jtag.actionEraseCheck) #Erase Check (by file)
elif o in ("-m", "--mainerase"):
toinit.append(jtag.actionMainErase) #Erase main Flash
- elif o in ("-p", "--programm"):
+ elif o == "--erase":
+ try:
+ seg = int(a, 0)
+ toinit.append(jtag.makeActionSegmentErase(seg))
+ except ValueError:
+ sys.stderr.write("segment address must be a valid number in dec, hex or octal\n")
+ sys.exit(2)
+ elif o == "--eraseinfo":
+ toinit.append(jtag.makeActionSegmentErase(0x1000))
+ toinit.append(jtag.makeActionSegmentErase(0x1080))
+ elif o in ("-p", "--program"):
todo.append(jtag.actionProgram) #Program file
elif o in ("-v", "--verify"):
todo.append(jtag.actionVerify) #Verify file
elif o in ("-r", "--reset"):
reset = 1
Best wishes,
--Daniel
