Include Dname in index

[flit]

The pack index does not appear to include Dname part numbers, only Dvariant.

For instance, the NXP MIMXRT1052_DFP pack has a Dname of "MIMXRT1052xxxxB" with several Dvariants, including "MIMXRT1052CVJ5B". Only the Dvariant names are present in the index.

[jkrech]

This is intentional.

You can probably blame me for this bit of confusion in CMSIS-Pack specification. The necessity for the definition of variants came in after the initial version and strongly pushed for by some partner feedback.

Once we have a variant defined for a device, the Dname attribute string becomes a "group name" (just like Dfamily and DsubFamily) and the Dvariant attribute string becomes the name string by which the device is referenced/selected.

This means that in the tools you can really only select the devices specified as <variant>
MIMXRT1052CVL5B
MIMXRT1052CVJ5B
MIMXRT1052DVL6B
MIMXRT1052DVJ6B

From a tooling perspective the device index must only list 'devices' regardless of whether specified by a <device Dname=""> or <variant Dvariant=""> tag (leafs in the description tree)

In the tools every project target specifies the Device as: Dvendor + Dname
(where Dname is the string specified by Dname or Dvariant in the <devices> description!)

Note:
I don't yet understand why NXP chose to define these as variants rather than devices.
The reason why it does not make sense to refer to a device by the name MIMXRT1052xxxxB is because this would not be specific enough e.g. for pin configuration tools. But often it also matters for conditional compilation of device header files
<compile header="fsl_device_registers.h" define="CPU_MIMXRT1052CVL5B"/>

I hope this explains it. I do appreciate it is not a great design.

~ Joachim