f57f0efc48
* Debug: revert cortex debug to lxml * Debug: update PyCortexMDebug readme * fbt: moved "debug" dir to "scripts" subfolder * ufbt: added missing debug_other & debug_other_blackmagic targets; github: fixed script bundling * lint: fixed formatting on debug scripts * vscode: updated configuration for debug dir changes --------- Co-authored-by: hedger <hedger@users.noreply.github.com> Co-authored-by: hedger <hedger@nanode.su>
36 lines
1.6 KiB
Markdown
36 lines
1.6 KiB
Markdown
PyCortexMDebug
|
|
==============
|
|
|
|
## SVD
|
|
|
|
ARM defines an SVD (System View Description) file format in its CMSIS standard as a means for Cortex-M-based chip manufacturers to provide a common description of peripherals, registers, and register fields. You can download SVD files for different manufacturers [here](http://www.arm.com/products/processors/cortex-m/cortex-microcontroller-software-interface-standard.php).
|
|
|
|
The implementation consists of two components -- An lxml-based parser module (pysvd) and a GDB file (gdb_svd). I haven't yet worked out a perfect workflow for this, though it's quite easy to use when you already tend to have a GDB initialization file for starting up OpenOCD and the like. However your workflow works, just make sure to, in GDB:
|
|
|
|
source gdb_svd.py
|
|
svd_load [your_svd_file].svd
|
|
|
|
These files can be huge so it might take a second or two. Anyways, after that, you can do
|
|
|
|
svd
|
|
|
|
to list available peripherals with descriptions. Or you can do
|
|
|
|
svd [some_peripheral_name]
|
|
|
|
to see all of the registers (with their values) for a given peripheral. For more details, run
|
|
|
|
svd [some_peripheral_name] [some_register_name]
|
|
|
|
to see all of the field values with descriptions.
|
|
|
|
You can add format modifiers like:
|
|
|
|
* `svd/x` will display values in hex
|
|
* `svd/o` will display values in octal
|
|
* `svd/t` or `svd/b` will display values in binary
|
|
* `svd/a` will display values in hex and try to resolve symbols from the values
|
|
|
|
All field values are displayed at the correct lengths as provided by the SVD files.
|
|
Also, tab completion exists for nearly everything! When in doubt, run `svd help`.
|