mirror of https://github.com/ARMmbed/mbed-os.git
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
"""
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mbed CMSIS-DAP debugger
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Copyright (c) 2006-2013 ARM Limited
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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from cortex_m import CortexM
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import logging
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MDM_STATUS = 0x01000000
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MDM_CTRL = 0x01000004
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MDM_IDR = 0x010000fc
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class KL25Z(CortexM):
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def __init__(self, transport):
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CortexM.__init__(self, transport)
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self.auto_increment_page_size = 0x400
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def init(self):
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CortexM.init(self, False)
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# check for flash security
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val = self.transport.readAP(MDM_IDR)
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if val != 0x001c0020:
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logging.error("KL25Z: bad flash ID")
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val = self.transport.readAP(MDM_STATUS)
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if (val & (1 << 2)):
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logging.warning("KL25Z secure state: will try to unlock")
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self.transport.assertReset(True)
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while True:
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self.transport.writeAP(MDM_CTRL, 1)
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val = self.transport.readAP(MDM_STATUS)
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logging.info(val)
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if (val & 1):
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break
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while True:
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self.transport.writeAP(MDM_CTRL, 0)
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val = self.transport.readAP(MDM_CTRL)
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if (val == 0):
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break
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logging.info("KL25Z not in secure state")
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self.halt()
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self.setupFPB()
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