void FpgaSendCommand(uint16_t cmd, uint16_t v);
void FpgaWriteConfWord(uint8_t v);
void FpgaDownloadAndGo(int bitstream_version);
-void FpgaSetupSsc(void);
+void FpgaSetupSsc(uint8_t mode);
void SetupSpi(int mode);
bool FpgaSetupSscDma(uint8_t *buf, int len);
void Fpga_print_status();