Move TRANSCEIVER_IO_SET out of writeDataLoop.

Add matching TRANSCEIVER_IO_SET(vTR_DBP,TR_INPUT) to writeDataPhase() and writeDataPhaseSD()

src/BlueSCSI.cpp

@@ -920,9 +920,6 @@ void writeDataLoop(uint32_t blocksize, const byte* srcptr)
   // Start the first bus cycle.
   FETCH_BSRR_DB();
   REQ_OFF_DB_SET(bsrr_val);
-#ifdef XCVR
-  TRANSCEIVER_IO_SET(vTR_DBP,TR_OUTPUT)
-#endif
   REQ_ON();
   FETCH_BSRR_DB();
   WAIT_ACK_ACTIVE();
@@ -959,9 +956,15 @@ void writeDataPhase(int len, const byte* p)
   LOGN("DATAIN PHASE");
   SCSI_PHASE_CHANGE(SCSI_PHASE_DATAIN);
   // Bus settle delay 400ns. Following code was measured at 800ns before REQ asserted. STM32F103.
+#ifdef XCVR
+  TRANSCEIVER_IO_SET(vTR_DBP,TR_OUTPUT)
+#endif
   SCSI_DB_OUTPUT()
   writeDataLoop(len, p);
   SCSI_DB_INPUT()
+#ifdef XCVR
+  TRANSCEIVER_IO_SET(vTR_DBP,TR_INPUT)
+#endif
 }
 
 /*
@@ -977,6 +980,9 @@ void writeDataPhaseSD(uint32_t adds, uint32_t len)
   uint64_t pos = (uint64_t)adds * m_img->m_blocksize;
   m_img->m_file.seekSet(pos);
 
+#ifdef XCVR
+  TRANSCEIVER_IO_SET(vTR_DBP,TR_OUTPUT)
+#endif
   SCSI_DB_OUTPUT()
   for(uint32_t i = 0; i < len; i++) {
       // Asynchronous reads will make it faster ...