PIO SVD doesn't handle "derivedFrom=" applied to a <register>, <cluster> or <field> line

[be-philippe]

Specifically, in ~/.platformio/platforms/atmelsam/misc/svd/ATSAMD21G18A.svd, lines 7716 <register derivedFrom="PINCFG0_%s"> and 7838 <register derivedFrom="PMUX0_%s"> are not handled correctly.

For example, the debugger shows correctly the byte value and the bit fields for PINCFG0_0 and PMUX0_0, but PINCFG1_0 and PMUX1_0 are shown as 32-bit words (overlapping with the following registers).

As the other uses of derivedFrom= are at the <peripheral> level and without %s placeholder (in this SVD file), I can't known which one of these features causes the problem, or if it's their combination.

[be-philippe]

Actually, ~/.vscode/extensions/platformio.platformio-ide-2.2.1/node_modules/platformio-vscode-debug/dist/extension.js only handles derivedFrom= for <peripheral>, not for <register>, <cluster> nor <field>.

I didn't find the sources (non public repository ?), but I did patch it successfuly on my machine (only for <register>).

I'm willing to create a PR.

[maxgerhardt]

Nice find, in that minified extension.js file. But also can't find the source (or, non-minified) version for that NPM module. https://www.npmjs.com/package/platformio-vscode-debug and https://www.jsdelivr.com/package/npm/platformio-vscode-debug show the package and package data, but all in minified JavaScript. The "repository" link links to this repo here, but I can't seem to be able to find the source code here (e.g., the _loadSVD()) function.