;----------------------------------------------------------------------------
;
; FlashInitDt402Eb.bvc
;
; Command file for flash update on DT402EB
; Boundary scan functions, required:
;    bsdl file (LSI402ZX.bsdl)
;    image file (Dt402Eb.bin)
;
;----------------------------------------------------------------------------
base x                          ; set number base to hex
JTAG 0 BSDL LSI402ZX.bsdl       ; configure boundary scan
bmode 1 sample                  ; set first device in the SAMPLE/PRELOAD mode
bscan                           ; scan all bits
bmode 1 extest                  ; set first device in the EXTEST mode
bcopy 1                         ; copy scanned in data to the output buffer
; === init definitions for PLD access
bmfunction remove               ; remove old definitions of the functions
bmfunction a 1 addr             ; assign all addr bits to the (A)ddr function
bmfunction d16 1 data           ; assign 16 data bits to the (D)ata function
bmfunction w 1 wr0n 0           ; assign active low wr0 strobe to the (W)r function
bmfunction r 1 rdn 0            ; assign active low rd strobe to the (R)d function
bmfunction c 1 pcs0n 0          ; assign active low pccs0 strobe to the (C)s function
bmfunction						; display current bsdl function assignments
flashdisplay 0#8				; show current contents of monitor location
bmwrite 4 8						; disable SRAM CS enable, so we can access flash
flashdisplay 0#8				; show current contents of monitor location
; === init definitions for flash access
bmfunction remove               ; remove old definitions of the functions
bmfunction a 1 addr             ; assign all addr bits to the (A)ddr function
bmfunction d16 1 data           ; assign 16 data bits to the (D)ata function
bmfunction w 1 wr0n 0           ; assign active low wr0 strobe to the (W)r function
bmfunction r 1 rdn 0            ; assign active low rd strobe to the (R)d function
bmfunction c 1 ics0n 0          ; assign active low ics0 strobe to the (C)s function
bmreadid                        ; Read flash id (call procedure)
if (v0==0x89) jump microndevice ; we can read device ID, so continue
bmreadid3			; read flash id using triple word accesses
if (v0==0x01) jump amddevice    ; we can read device ID, so continue
if (v0==0x20) jump amddevice    ; we can read device ID, so continue
if (v0==0xbf) jump amddevice    ; we can read device ID, so continue
Print "Invalid device found, aborting operation"
jump exit                       ; end command file execution
.amddevice
print "Found AMD/SST/STM flash, continuing"
flashmode 1                     ; set flash accesses in AMD/SST/ST mode
jump programFlash		; jump back to the programming algorithm
.microndevice                   ;
print "Found Micron flash, continuing"
flashmode 2                     ; assume micron flash
.programFlash
.exit