Debugging Embedded Systems

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Implementation Example: Debug Access Port (JTAG-DP accesses to an AP) 42
Breakpoints: Hardware vs Software Hardware Instructions Breakpoints (requires specific hardware support) – Provided by comparators called Watchpoint units – Watchpoint units can be programmed to detect data accesses and instruction fetches by monitoring Address bus, Data bus and control signals. – When a match occurs, the core is forced into Debug state. 43
Page 1 and 2: Debugging Embedded Systems Sergio S
Page 3 and 4: Debugging Embedded Systems What is
Page 5 and 6: Debuggers vs Front-Ends Debuggers:
Page 7 and 8: DDD Screenshot 7
Page 9 and 10: Insight Screenshot 9
Page 11 and 12: Debugger: Main Operations (Cont.) D
Page 13 and 14: GDB/MI Interface Command Line Inter
Page 15 and 16: GDB/MI Interface (Cont.) GDB/MI Out
Page 21 and 22: GDB/MI Interface (Cont.) GDB/MI Exa
Page 23 and 24: GDB Remote Serial Protocol GDB Remo
Page 25 and 26: GDB Remote Serial Protocol (Cont.)
Page 27 and 28: GDB Remote Serial Protocol (Cont.)
Page 29 and 30: Debugging Embedded Systems JTAG Ove
Page 31 and 32: IEEE 1149.1 (JTAG) Overview Origina
Page 33 and 34: JTAG TAP Controller State-Machine 3
Page 35 and 36: JTAG Shortcomings Not specifically
Page 37 and 38: ARM CoreSight Debug Architecture Ov
Page 39 and 40: Debug Access Port components AP (Ac
Page 41: Debug Access Port accesses descript
Page 45 and 46: Debugging Embedded Systems - Typica
Page 47 and 48: SWD Protocol - Header fields Header
Page 49 and 50: SWD Protocol - Timing relationship
Page 51 and 52: SWD - Transfer examples WAIT respon
Page 53 and 54: Connector Types - ETM Trace (legacy
Page 55 and 56: Connector Types - Cortex Debug+ETM
Page 57: Debugging Embedded Systems Debug Se

Debugging Embedded Systems

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