mawei/panda-meb
1
0
Fork 0
mirror of https://github.com/infiniteCable2/panda.git synced 2026-02-18 17:23:52 +08:00
Code Issues Packages Projects Releases Wiki Activity

can flasher is close to working

Browse Source
This commit is contained in:
George Hotz
2018-03-10 11:22:22 -08:00
parent 83f2edfb78
commit b259e2ae91
3 changed files with 93 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

95
python/__init__.py
View File

@@ -170,7 +170,7 @@ class Panda(object):
assert(self._handle != None)
print("connected")
def reset(self, enter_bootstub=False, enter_bootloader=False, reconnect=True):
def reset(self, enter_bootstub=False, enter_bootloader=False):
# reset
try:
if enter_bootloader:
@@ -183,27 +183,56 @@ class Panda(object):
except Exception:
pass
if not enter_bootloader:
self.close()
if reconnect == False:
return
time.sleep(1.0)
success = False
# wait up to 15 seconds
for i in range(0, 15):
self.reconnect()
def reconnect(self):
self.close()
time.sleep(1.0)
success = False
# wait up to 15 seconds
for i in range(0, 15):
try:
self.connect()
success = True
break
except Exception:
print("reconnecting is taking %d seconds..." % (i+1))
try:
self.connect()
success = True
break
dfu = PandaDFU(PandaDFU.st_serial_to_dfu_serial(self._serial))
dfu.recover()
except Exception:
print("reconnecting is taking %d seconds..." % (i+1))
try:
dfu = PandaDFU(PandaDFU.st_serial_to_dfu_serial(self._serial))
dfu.recover()
except Exception:
pass
time.sleep(1.0)
if not success:
raise Exception("reset failed")
pass
time.sleep(1.0)
if not success:
raise Exception("reconnect failed")
@staticmethod
def flash_static(handle, code):
# confirm flasher is present
fr = handle.controlRead(Panda.REQUEST_IN, 0xb0, 0, 0, 0xc)
assert fr[4:8] == "\xde\xad\xd0\x0d"
# unlock flash
print("flash: unlocking")
handle.controlWrite(Panda.REQUEST_IN, 0xb1, 0, 0, b'')
# erase sectors 1 and 2
print("flash: erasing")
handle.controlWrite(Panda.REQUEST_IN, 0xb2, 1, 0, b'')
handle.controlWrite(Panda.REQUEST_IN, 0xb2, 2, 0, b'')
# flash over EP2
STEP = 0x10
print("flash: flashing")
for i in range(0, len(code), STEP):
handle.bulkWrite(2, code[i:i+STEP])
# reset
print("flash: resetting")
try:
handle.controlWrite(Panda.REQUEST_IN, 0xd8, 0, 0, b'')
except Exception:
pass
def flash(self, fn=None, code=None, reconnect=True):
if not self.bootstub:
@@ -228,28 +257,12 @@ class Panda(object):
# get version
print("flash: version is "+self.get_version())
# confirm flasher is present
fr = self._handle.controlRead(Panda.REQUEST_IN, 0xb0, 0, 0, 0xc)
assert fr[4:8] == "\xde\xad\xd0\x0d"
# do flash
Panda.flash_static(self._handle, code)
# unlock flash
print("flash: unlocking")
self._handle.controlWrite(Panda.REQUEST_IN, 0xb1, 0, 0, b'')
# erase sectors 1 and 2
print("flash: erasing")
self._handle.controlWrite(Panda.REQUEST_IN, 0xb2, 1, 0, b'')
self._handle.controlWrite(Panda.REQUEST_IN, 0xb2, 2, 0, b'')
# flash over EP2
STEP = 0x10
print("flash: flashing")
for i in range(0, len(code), STEP):
self._handle.bulkWrite(2, code[i:i+STEP])
# reset
print("flash: resetting")
self.reset(reconnect=reconnect)
# reconnect
if reconnect:
self.reconnect()
def recover(self):
self.reset(enter_bootloader=True)