Since the STM32F303CCT6 is currently difficult to order, some clones may be replaced with some inexpensive processors.
Earlier versions of the NanoVNA-H4 firmware, which allows only 101 scan points and uses relatively little RAM in order to remain compatible with the NanoVNA-H, can also run on the STM32F303C8T6 and STM32F303CBT6 as well as the STM32F302C8T6 and STM32F302CCT6.
The new firmware takes full advantage of the STM32F303CCT6 RAM and ROM with more scan points and save options with the help of DiSlord, so it can only run on the STM32F303CCT6 and STM32F302CCT6 which have larger memory.
