Rodrigo Arias
5d4fa15eb9
Allows mkdocs to discover broken links when the pointed document has moved.
31 lines
1.1 KiB
Markdown
31 lines
1.1 KiB
Markdown
# Paraver trace
|
|
|
|
Paraver traces are handled by the top level module `pvt` (Paraver trace), which
|
|
in turn uses the `prv`, `pcf` and `prf` to control the trace events, type
|
|
definitions and row names (in that order).
|
|
|
|
Traces must be initialized with the number of rows and a name by calling
|
|
`pvt_open()`.
|
|
|
|
The emulation time must be updated with `pvt_advance()` prior to emitting any
|
|
event, so they get the update clock in the trace.
|
|
|
|
## Connecting channels
|
|
|
|
A channel can be connected to each row in a trace with `prv_register()`, so the
|
|
new values of the channel get written in the trace. Only null and int64 data
|
|
values are supported for now.
|
|
|
|
The emission phase is controlled by the [patch bay](patchbay.md) and runs all
|
|
the emit callbacks at once for all dirty channels.
|
|
|
|
## Duplicate values
|
|
|
|
When a channel feeds a duplicated value, it causes an error by default. The
|
|
behavior of each row when a duplicate value is found can be controlled by the
|
|
`flags` in `prv_register()`:
|
|
|
|
- `PRV_EMITDUP` will emit the duplicate values from the channel to the trace.
|
|
|
|
- `PRV_SKIPDUP` ignore any duplicate values and don't emit them.
|