BDA314BC Release Notes (autoextracted) - 2020/06/10 
2020.06C OldMB MPFS21 release.
Added automatic bda3rel.txt generation at compile.
Fixed data length in Sect9[] in USB/SPI_flash_format.h
Fixed server call routines.           2018.08b
Added support for PI, select by OPTO button toggle.
Added lock cmd (223), 
PI to BCON command format is $P_xxxx.END.
BCON to PI command format is $C_xxxx.END. 
Increased stack to 3600, 
enabled volume DAC_VOL_MIN..DAC_VOL_MAX 
fixing periodic ticks in no-clock
added TMUTE cmd from PI, flash pwr LED on press.
Modified PLD1004 & DSD related changes for HSR41T.
hdmi_forum=0 in BDA3.INI to disable HDMI Forum.
2s tout after SRC_PI select by PI & no lock, err mess!
Adding feedbk cmd for PI on volume chng over IR
Fixed SPDIF1,2 and OPT1 locking glitch
Fixed responses to BSP commands from PI
Added PLAY/PAUSE/STOP/PREV/NEXT IR cmds to PI 
Mod SRC4392 timing for SRC_PI to improve LOCK
Rescale yellow volume bar to -30dB to 0dB range
Fixed MSRCQS command
Added source labels and SETS command
Red LOCK LED pulsing when waiting for PI boot
Added PCMD - command passthru from RS232 to PI
Made UPSMP toggle mute/unmute
Fixed minimum and max volume bar.
Added NB CS and EN (Base64) to FILE from PI cmd
Added set Date & Time cmd from PI, for FAT.
Expanded error codes from Flash2 FAT12 
Added ~vol~ and ~mute~ xml vars.
Fixed GETS, added GETSALL command.
Modified USB MSD timing. Removed VPI from
model name. Added support for IR HDMI1..4 
passthru command codes 035..038.
updated helpcmd.txt and helpir.htm
Reverted USB MSD from INT to POLL
Increased TCP buffers: HTTP_MAX_DATA_LEN=900,
  TCP_PIC_RAM_TX_SIZE=TCP_PIC_RAM_RX_SIZE=1000, 
  TCP_PIC_RAM_SIZE=8200	
Increased stack size 3600-->5120 
Added ~ nameall ~ 
Added mute LED recovery
Changed default volume to -60dB
Prevent LED mute indication except only in User Mute
Set soft mute on WILLSHUT event for PI.
Updated WebPages2. Set volume default at maximum.
Fixed MUTE/UPSMPL LED.  PCMDRST delayed by 200ms
Added GETINFO cmd from PI
Allowed #00XXXX universal cmd format.
Removed vol= option from bda3.ini
Added voldflt in GlobPar, fixed reading bug in bda3.ini
Changed GETD display fmt of byte size params to unsigned.
Added hdmi_forum read from bda3.ini (HSR41T support)
Fixed initial volume set bug when PI is selected. 
Minor change in preset-vol sequence. 
Adj support server call timeout on startup. 
Fixed yellow PI src led oafter poweroff. 
Changed model name to BDA314BC. 
Fixed bug in mem.c module.
Added passing HDMI & USB sample rate to PI.
Improved mute when switching sources and added,
parameters hdmute 0..254, automut 0..254,
and fixed 10s HDMI mute after pwrup.
Fixed autmatic init. of hdmute and automut.
Removed one dac_init call to reduce src switching pulse.
Fixed HDMI-DSD. Added auto program PLD to rev 1003.
Fixed hanging of PLD prog when started from TCP/IP.
Added SETD parameters hdmdly,hdforum and hdclk, and
revised PLD_VER_AUTOPGM 0x1003-->0x1005 for HSR41T.
Fixed mute after USB, and mute after PI bug, 
red source LED after STBY.