Enum itm_decode::TracePacket [−][src]
pub enum TracePacket {}Show 14 variants
Sync, Overflow, LocalTimestamp1 { ts: u64, data_relation: TimestampDataRelation, }, LocalTimestamp2 { ts: u8, }, GlobalTimestamp1 { ts: u64, wrap: bool, clkch: bool, }, GlobalTimestamp2 { ts: u64, }, Extension { page: u8, }, Instrumentation { port: u8, payload: Vec<u8>, }, EventCounterWrap { cyc: bool, fold: bool, lsu: bool, sleep: bool, exc: bool, cpi: bool, }, ExceptionTrace { exception: VectActive, action: ExceptionAction, }, PCSample { pc: Option<u32>, }, DataTracePC { comparator: u8, pc: u32, }, DataTraceAddress { comparator: u8, data: Vec<u8>, }, DataTraceValue { comparator: u8, access_type: MemoryAccessType, value: Vec<u8>, },
Expand description
The set of valid packet types that can be decoded.
Variants
A synchronization packet is a unique pattern in the bitstream. It is identified and used to provide the alignment of other packet bytes in the bitstream. (Appendix D4.2.1)
Found in the bitstream if
- Software has written to an ITM stimulus port register when the stimulus port output buffer is full.
- The DWT attempts to generate a hardware source packet when the DWT output buffer is full.
- The local timestamp counter overflows.
See (Appendix D4.2.3).
A delta timestamp that measures the interval since the generation of the last local timestamp and its relation to the corresponding ITM/DWT data packets. (Appendix D4.2.4)
Fields of LocalTimestamp1
ts: u64
Timestamp value.
data_relation: TimestampDataRelation
Indicates the relationship between the generation of ts
and the corresponding ITM or DWT data packet.
A derivative of LocalTimestamp1
for timestamp values between
1-6. Always synchronous to te associated ITM/DWT data. (Appendix D4.2.4)
Fields of LocalTimestamp2
ts: u8
Timestamp value.
An absolute timestamp based on the global timestamp clock that contain the timestamp’s lower-order bits. (Appendix D4.2.5)
Fields of GlobalTimestamp1
An absolute timestamp based on the global timestamp clock that contain the timestamp’s higher-order bits. (Appendix D4.2.5)
Fields of GlobalTimestamp2
ts: u64
Higher-order bits of the timestamp value; bits[63:26] or bits[47:26] depending on implementation.
A packet that provides additional information about the identified source (one of two possible, theoretically). On ARMv7-M this packet is only used to denote on which ITM stimulus port a payload was written. (Appendix D4.2.6)
Fields of Extension
page: u8
Source port page number.
Contains the payload written to the ITM stimulus ports.
Fields of Instrumentation
One or more event counters have wrapped. (Appendix D4.3.1)
Fields of EventCounterWrap
The processor has entered, exit, or returned to an exception. (Appendix D4.3.2)
Fields of ExceptionTrace
exception: VectActive
action: ExceptionAction
Periodic PC sample. (Appendix D4.3.3)
A DWT comparator matched a PC value. (Appendix D4.3.4)
Fields of DataTracePC
A DWT comparator matched an address. (Appendix D4.3.4)
Fields of DataTraceAddress
A data trace packet with a value. (Appendix D4.3.4)
Fields of DataTraceValue
comparator: u8
The comparator number that generated the data.
access_type: MemoryAccessType
Whether the data was read or written.
value: Vec<u8>
The data value. MSB, BE.
Trait Implementations
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Auto Trait Implementations
impl RefUnwindSafe for TracePacket
impl Send for TracePacket
impl Sync for TracePacket
impl Unpin for TracePacket
impl UnwindSafe for TracePacket
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