-
Notifications
You must be signed in to change notification settings - Fork 3
/
debugger.py
222 lines (174 loc) · 8.99 KB
/
debugger.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
from pyedbglib.hidtransport.hidtransportfactory import hid_transport
from pyedbglib.protocols import housekeepingprotocol
from pyedbglib.protocols import housekeepingprotocol
from pyedbglib.protocols import avr8protocol
from pyedbglib.protocols import avr8protocolerrors
# Retrieve device info
from pymcuprog.deviceinfo import deviceinfo
# Construct an NVM provider
from pymcuprog.nvmupdi import NvmAccessProviderCmsisDapUpdi
from pyedbglib.protocols.avrcmsisdap import AvrCommand, AvrCommandError
from pyedbglib.protocols.jtagice3protocol import Jtagice3Command
import logging
import threading
import time
import asyncio
logging.basicConfig(level=logging.INFO,handlers=[logging.StreamHandler()])
class Debugger():
def __init__(self, DeviceName):
# Make a connection
self.transport = hid_transport()
self.transport.disconnect()
# Connect
self.transport.connect()
self.deviceInf = deviceinfo.getdeviceinfo(DeviceName)
self.memoryinfo = deviceinfo.DeviceMemoryInfo(self.deviceInf)
self.housekeeper = housekeepingprotocol.Jtagice3HousekeepingProtocol(self.transport)
self.housekeeper.start_session()
self.device = NvmAccessProviderCmsisDapUpdi(self.transport, self.deviceInf)
#self.device.avr.deactivate_physical()
self.device.avr.activate_physical()
# Start debug by attaching (live)
self.device.avr.protocol.attach()
#threading.Thread(target=pollingThread, args=(self.eventReciver,)).start()
def pollEvent(self):
#eventRegister = self.eventReciver.poll_events()
eventRegister = self.device.avr.protocol.poll_events()
#logging.info(eventRegister)
if eventRegister[0] == AvrCommand.AVR_EVENT: # Verifying data is an event
size = int.from_bytes(eventRegister[1:3], byteorder='big')
if size != 0:
#event recived
logging.info("Event recived")
eventarray = eventRegister[3:(size+1+3)]
SOF = eventarray[0]
protocol_version = eventarray[1:2]
sequence_id = eventarray[2:4]
protocol_handler_id = eventarray[4:5]
payload = eventarray[5:]
#logging.info(eventarray)
if payload[0] == avr8protocol.Avr8Protocol.EVT_AVR8_BREAK:
event_id = payload[0]
#event_version = payload[1]
pc = payload[1:5]
break_cause = payload[5]
extended_info = payload[6:]
print("PC: ", end="")
print(int.from_bytes(pc, byteorder='little'))
logging.info("Recived break event")
return (avr8protocol.Avr8Protocol.EVT_AVR8_BREAK, int.from_bytes(pc, byteorder='little'), break_cause)
else:
logging.info("Unknown event: " + payload[0])
return None
else:
logging.info("No event")
return None
# Memory interaction
def writeSRAM(self, address, data):
offset = (self.memoryinfo.memory_info_by_name('internal_sram'))['address']
return self.device.write(self.memoryinfo.memory_info_by_name('internal_sram'), address-offset, data)
def readSRAM(self, address, numBytes):
offset = (self.memoryinfo.memory_info_by_name('internal_sram'))['address']
return self.device.read(self.memoryinfo.memory_info_by_name('internal_sram'), address-offset, numBytes)
def readFlash(self, address, numBytes):
logging.info("Reading "+str(numBytes)+" bytes from flash at " + str(address))
offset = (self.memoryinfo.memory_info_by_name('flash'))['address']
# See programmer.py:265 in pymcuprog, maybe flashread fails due to page alignement?
return self.device.read(self.memoryinfo.memory_info_by_name('flash'), address, numBytes)
def writeEEPROM(self, address, data):
offset = (self.memoryinfo.memory_info_by_name('eeprom'))['address']
return self.device.write(self.memoryinfo.memory_info_by_name('eeprom'), address-offset, data)
def readEEPROM(self, address, numBytes):
offset = (self.memoryinfo.memory_info_by_name('eeprom'))['address']
return self.device.read(self.memoryinfo.memory_info_by_name('eeprom'), address-offset, numBytes)
def writeFuse(self, address, data):
offset = (self.memoryinfo.memory_info_by_name('fuses'))['address']
return self.device.write(self.memoryinfo.memory_info_by_name('fuses'), address-offset, data)
def readFuse(self, address, numBytes):
offset = (self.memoryinfo.memory_info_by_name('fuses'))['address']
return self.device.read(self.memoryinfo.memory_info_by_name('fuses'), address-offset, numBytes)
def writeLock(self, address, data):
offset = (self.memoryinfo.memory_info_by_name('lockbits'))['address']
return self.device.write(self.memoryinfo.memory_info_by_name('lockbits'), address-offset, data)
def readLock(self, address, numBytes):
offset = (self.memoryinfo.memory_info_by_name('lockbits'))['address']
return self.device.read(self.memoryinfo.memory_info_by_name('lockbits'), address-offset, numBytes)
def writeSignature(self, address, data):
offset = (self.memoryinfo.memory_info_by_name('signatures'))['address']
return self.device.write(self.memoryinfo.memory_info_by_name('signatures'), address-offset, data)
def readSignature(self, address, numBytes):
offset = (self.memoryinfo.memory_info_by_name('signatures'))['address']
return self.device.read(self.memoryinfo.memory_info_by_name('signatures'), address-offset, numBytes)
def writeUserSignature(self, address, data):
offset = (self.memoryinfo.memory_info_by_name('user_row'))['address']
return self.device.write(self.memoryinfo.memory_info_by_name('user_row'), address-offset, data)
def readUserSignature(self, address, numBytes):
offset = (self.memoryinfo.memory_info_by_name('user_row'))['address']
return self.device.read(self.memoryinfo.memory_info_by_name('user_row'), address-offset, numBytes)
# General debugging
def attach(self, do_break=False):
self.device.avr.protocol.attach(do_break)
def detach(self):
self.device.avr.protocol.detach()
# Flow controll
def reset(self):
self.device.avr.protocol.reset()
def step(self):
self.device.avr.protocol.step()
def stop(self):
self.device.avr.protocol.stop()
def run(self):
self.device.avr.protocol.run()
def runTo(self, address):
wordAddress = int(address/2)
self.device.avr.protocol.run_to(wordAddress)
def readStackPointer(self):
return self.device.avr.stack_pointer_read()
def readSREG(self):
return self.device.avr.protocol.memory_read(avr8protocol.Avr8Protocol.AVR8_MEMTYPE_OCD, 0x1C, 0x01)
def readRunningState(self):
# Debug interface to see what state the avr is in.
AVR8_CTXT_TEST = 0x80
AVR8_TEST_TGT_RUNNING = 0x00
running = bool(self.device.avr.protocol.get_byte(AVR8_CTXT_TEST, AVR8_TEST_TGT_RUNNING))
logging.info("AVR running state " + str(running))
return running
# Register and programcounter
def readRegs(self):
return self.device.avr.protocol.regfile_read()
def writeRegs(self, regs):
return self.device.avr.protocol.regile_write(regs)
def readProgramCounter(self):
# Returned as a word not a byte
return self.device.avr.protocol.program_counter_read()
def writeProgramCounter(self, programCounter):
self.device.avr.protocol.program_counter_write(programCounter)
# SoftwareBreakpoints EDBG expects these addresses in bytes
# Multiple SW breakpoints can be defined by shifting 4 bytes to the left
def breakpointSWSet(self, address):
self.device.avr.protocol.software_breakpoint_set(address)
def breakpointSWClear(self, address):
self.device.avr.protocol.software_breakpoint_clear(address)
def breakpointSWClearAll(self):
self.device.avr.protocol.software_breakpoint_clear_all()
# HardwareBreakpoints EDBG expects these addresses in words
def breakpointHWSet(self, address):
wordAddress = int(address/2)
self.device.avr.breakpoint_set(wordAddress)
def breakpointHWClear(self):
self.device.avr.breakpoint_clear()
# Cleanup code for detatching target
def cleanup(self):
# and end debug
self.device.avr.protocol.stop()
self.device.avr.protocol.software_breakpoint_clear_all()
self.device.avr.breakpoint_clear()
self.device.avr.protocol.detach()
# Stop session
#avr.stop()
self.device.avr.deactivate_physical()
# Unwind the stack
self.housekeeper.end_session()
self.transport.disconnect()
def __exit__(self, exc_type, exc_value, traceback):
self.cleanup()