Latest HF32 3.5 seems to have best current performance, can be installed below:

https://hf32.neutron-rc.com/

* BETAFLIGHT 4.5.0 is under development section and seems to run great, as any development FW use it on ur own risk. otherwise you can stay with 4.3.2 RC4 

AboutATBETAFLIGHT, it is a special branch of BETAFLIGHT, which is different from the MCU master control using non-ST chips, has a lower price, and a complete BMI270 driver, allowing it to calibrate the gyroscope at startup and have better flight stability .

Currently, the QUICKSILVERfirmware has been perfectly supported, and it performs perfectly on a small frame with a protective frame

    1. How to connect BETAFLIGHT CONFIG software and the difference with BF;

    1,1, Download the ArteryUSB driver

    1.2, betaflight 10.9 Configurator Opens the following setting options

2. About the AM32 ESC, there is a known bug in the AM32 version of the website, which causes malfunctions after writing or modifying the ESC. We have submitted a PR to fix this issue. Currently, you can use the development version web configurator to modify the AM32 ESC configuration

About Betaflight's support for artery MCU:

The current BF 4.4.X version does not support the AT32F435 chip. Our default firmware is based on the 4.3.2 branch. At present, it is seen in the BETAFLIGHT code base that BF4.5 will soon support the AT32F435 chip, and the specific progress is uncertain.

How to update FC and ESC firmware, please refer to the download document

AT32F435 Mini AIO Upgrade the frimware and ESC

The default FC Flash ATbetaflight 4.3.2-RC4 firmware, ESC flash HF32 firmware, usually, you do not need flash FC and ESC firmware, just install and set related options according to your settings. HF32 ESC Configurator

AT32F435 Mini AIO V1.2 User manual

About the support of different motors, currently we test and recommend as follows:

AT32F435 Mini AIO V1.2

Differences between V1.0 and V1.2V1.2 Connect with DJI O3/VISTAV1.2 packing list:

AT32F435 Mini AIO V1.0