SM6FBQ / HackRF clone - History

CPLD: Set default IOSTANDARD to LVCMOS33, remove from UCF.

CPLD: Pull up HOST_SYNC signal, which is usually floating.

HOST_SYNC is only connected to connector P28, and is therefore not driven (left to float) unless connected to some synchronization signal. Pull it up to keep it steady.

In doing so, I had to switch all unused pins to pull-up, and all input-only and tri-state pins to float. All input/tri-state pins except for HOST_SYNC are tied to the microcontroller and can be pulled up there.

PortaPack: Add .SVF of current JEDEC bitstream file.

PortaPack build consumes this file to embed the bitstream into the firmware.

PortaPack: Build DFU binary without forcing serial number to "RunningFromRAM".

This was causing problems for HackRF mode, where some host PC software was depending on a valid serial number.

PortaPack: Replace OperaCake handlers, they were tripping up host tools. Skip operacake_init if PortaPack compiled in, letting operacake_boards be all zero. Should be safe, right?

PortaPack: Silence warnings about unused functions/variables I'm liable to use soon.

I don't like the __attribute__((unused)) markup, but woud rather not delete or comment out the code.

PortaPack: Address some unused variable/function warnings.

OperaCake: Bring together with PortaPack code.

The plan is to have them coexist in the firmware binary, even if the hardware is mutually exclusive at runtime.

USB: Set Opera Cake USB handlers to null unless hardware is detected.