Port of CCLoader as a utility driver

[Staars]

Description:

This is a port of the well known utility 'CCLoader', which usually needs a separate programmer device.
Now everything is done OTA. It is possible to connect all needed wires to a CC25xx and update/change the device firmware inside Tasmota.
For the first version the pins of the debugging interface are hardcoded (line 129-131 in the driver).
After start the driver reports the found chip in the console and WebUI. A firmware file (.bin-format) can be chosen in the usual place of the Tasmota-Web-UI. Report progress is shown in the console.

A possible scenario is to connect a CC253x for Zigbee, compile the ccloader with Tasmota, do FW upgrade and then flash the final Tasmota binary.

Checklist:

• The pull request is done against the latest dev branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works on Tasmota core ESP8266 V.2.7.4.7
• The code change is tested and works on Tasmota core ESP32 V.1.0.4.2
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass

[s-hadinger]

Super nice!

[MattWestb]

Now Tasmota and Zigpy / ZHA can updating the firmware "in house" and Z2M cant. Also Z2M is recommending reflashing the CC-253X then it having corrupting the internal settings in the NVR (that is happening of with Z2M) instead deleting it with NCP commands :-))

Great work for Z2T !!

I think its working for the CC-254X (BT) modules 2 or ?

[Staars]

It should work with the BT modules too. I ordered a CC2640 device for testing, to see if it can also work with the CC26xx. We‘ll see.