Nexmon is our C-based firmware patching framework for Broadcom/Cypress WiFi chips that enables you to write your own firmware patches, for example, to enable monitor mode with radiotap headers and frame injection.
When a flowgraph which has been generated by version 3.7 is opened in GRC version 3.8, much of the conversion process is done automatically. However, there are certain things which must be updated by hand.
WX GUI blocks: Since the WX GUI blocks are deprecated in version 3.8, the user must find corresponding blocks in the QT GUIs.
If blocks have different names between versions 3.7 and 3.8, they must be replaced by hand.