The variable frequency air conditioner supports both online and offline read/write operations, requiring a programming socket to be inserted into the programmer. It can directly support reading and writing of .hex and .bin format files without manual conversion. When used with the RT809H programmer sold in home appliance repair forums, it supports both online and offline read/write operations.
QFP80 Read/Write Socket for Variable Frequency Air Conditioner:
https://item.taobao.com/item.htm?id=628567940900
JTAG Online Read/Write Probe for Variable Frequency Air Conditioner:
https://item.taobao.com/item.htm?id=633672642983
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