Logging Trace Events - 2021.1 English

Versal ACAP System Software Developers Guide (UG1304)

Document ID
UG1304
Release Date
2021-06-16
Version
2021.1 English

The PLM supports the logging of trace events to memory. This memory is different than the memory used for logging the PLM prints. Currently, the PLM logs only PDI load trace events and is timestamped. The following features are supported by the PLM as part of tracing:

Configure trace log buffer memory
By default, the PLM logs the trace events to the PMC RAM memory. This feature allows you to change the trace log memory to a different memory location.
Retrieve trace log buffer
Retrieve the logged trace events to a memory of your choice.
Retrieve trace log buffer information
Retrieve information of trace events logging.

For examples of logging trace events, see Event Trace Log Command Examples.

Trace Events Log Format

Table 1. Trace Events Log Format
Structure
Trace event length including timestamp Trace ID
Time stamp in milliseconds
Time stamp in fraction
Payload
...

Currently, the PLM logs only the list of images that are loaded as part of trace events logging.

Table 2. Trace Event Table
Trace Event ID Trace Event Length Payload
XPLMI_TRACE_LOG_LOAD_IMAGE = 0x1 3 Image ID