DAP_SWO_ExtendedStatus

Read SWO trace extended status.

DAP_SWO_ExtendedStatus (0x1E):

Reads extended information about the SWO trace status.

DAP_SWO_ExtendedStatus Request:

| BYTE | BYTE    |
> 0x1E | Control |
|******|*********|

• Control:
  • Bit 0: Trace Status (1 - request, 0 - inactive)
  • Bit 1: Trace Count (1 - request, 0 - inactive)
  • Bit 2: Index/Timestamp (1 - request, 0 - inactive)

DAP_SWO_ExtendStatus Response:

| BYTE | BYTE         | WORD        | WORD  | WORD         |
< 0x1E | Trace Status | Trace Count | Index | TD_TimeStamp |
|******|++++++++++++++|+++++++++++++|+++++++|++++++++++++++|

• Trace Status:
  • Bit 0: Trace Capture (1 - active, 0 - inactive)
  • Bit 6: Trace Stream Error
  • Bit 7: Trace Buffer Overrun
• Trace Count: Number of bytes in Trace Buffer (not yet read)
• Index: Sequence number of next trace information
• TD_TimeStamp: Test Domain Timer value for trace sequence.