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Pull in upstream fixes for getting board into flash mode.

This commit is contained in:
Johny Mattsson 2015-07-02 20:09:32 +10:00
parent 125d2173d6
commit 8394333cab
1 changed files with 25 additions and 31 deletions
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56
tools/esptool.py
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@ -128,38 +128,32 @@ class ESPROM:
def connect(self): def connect(self):
print 'Connecting...' print 'Connecting...'
# RTS = CH_PD (i.e reset) for _ in xrange(4):
# DTR = GPIO0 # issue reset-to-bootloader:
# self._port.setRTS(True) # RTS = either CH_PD or nRESET (both active low = chip in reset)
# self._port.setDTR(True) # DTR = GPIO0 (active low = boot to flasher)
# self._port.setRTS(False) self._port.setDTR(False)
# time.sleep(0.1) self._port.setRTS(True)
# self._port.setDTR(False) time.sleep(0.05)
self._port.setDTR(True)
self._port.setRTS(False)
time.sleep(0.05)
self._port.setDTR(False)
# NodeMCU devkit self._port.timeout = 0.3 # worst-case latency timer should be 255ms (probably <20ms)
self._port.setRTS(True) for _ in xrange(4):
self._port.setDTR(True) try:
time.sleep(0.1) self._port.flushInput()
self._port.setRTS(False) self._port.flushOutput()
self._port.setDTR(False) self.sync()
time.sleep(0.1) self._port.timeout = 5
self._port.setRTS(True) return
time.sleep(0.1) except:
self._port.setDTR(True) time.sleep(0.05)
self._port.setRTS(False) # this is a workaround for the CH340 serial driver on current versions of Linux,
time.sleep(0.3) # which seems to sometimes set the serial port up with wrong parameters
self._port.setDTR(True) self._port.close()
self._port.open()
self._port.timeout = 0.5
for i in xrange(10):
try:
self._port.flushInput()
self._port.flushOutput()
self.sync()
self._port.timeout = 5
return
except:
time.sleep(0.1)
raise Exception('Failed to connect') raise Exception('Failed to connect')
""" Read memory address in target """ """ Read memory address in target """