VMusic2 Technical's sample in new forum format
Since the old forum has not been converted yet, this is the sample code from technical edited for the new forum.
I currently have a VDrive2 with firmware 03.54 and it creates the log.txt file OK
Since the old forum has not been converted yet, this is the sample code from technical edited for the new forum.
I currently have a VDrive2 with firmware 03.54 and it creates the log.txt file OK
Code:
; Interfacing a VMUSIC2 module to PICAXE-28X1 - By technical - edited to new froum format BCJKiwi
; Also shows how to create a log file (this also suits VDRIVE2)
; Hardware Setup
; VDrive2 - PICAXE-28X1
; 1 Black GND - 0V Leg 8,19
; 2 Brown RTS - CTS input4 C4 Leg 15 (not used)
; 3 Red V+ - V+ Leg 20
; 4 Orange RXD - HTXD input6 C6 Leg 17
; 5 Yellow TXD - HRXD input7 C7 Leg 18
; 6 Green CTS - RTS output0 B0 Leg 21 (not essential, can tie to 0V)
; 7
; 8 Blue RI - not connected
; Note RXD on VDrive2 connects to TXD on PICAXE etc.
; Tested with a Sandisk 1GB Micro Cruzer with MP3 files called
; "1.mp3", "2.mp3", "3.mp3" in the root folder
; Sound was output using normal computer style speakers.
; IMPORTANT NOTE: Upon powerup it can take over a minute for the
; VMUSIC2 to enumerate the 1GB memory stick. During this time it looks
; like nothing at all is happening. This had us confused for many hours,
; thinking that the module was not working!
; After powerup have a cup of coffee and wait for the LED on VMUSIC2
; to go green. The drive LED should also be on - if not try reinserting.
symbol first_byte = b0
symbol point = b1
symbol temp = b2
symbol loopcounter = b3
; set picaxe type
#picaxe 28x1
setfreq m4
; set COM port used for download
;#com 4
; open terminal after download
; This is to view the 'sertxd' debugging comments
#terminal 9600
setup:
; setup serial hardware
; at 9600 with background receive
hsersetup b9600_4,%01
low 0 ; ensure CTS is low
init:
; Send Es until the unit responds correctly
sertxd ("<Sent> E",CR,LF)
hserout 0,("E",CR)
gosub get_response
if first_byte <> "E" then init
main:
; check to see if a drive is actually inserted
; response will start D for yes and N for no
sertxd ("<Sent> Check Drive",CR,LF)
hserout 0,(CR)
gosub get_response
if first_byte <> "D" then main
; play track 1.mp3
; response will start D if ok, C if not
sertxd ("<Sent> Play track 1",CR,LF)
hserout 0,("vpf 1.mp3",CR)
gosub get_response
if first_byte <> "D" then main
;now playing a track
playing:
sertxd ("Playing 10 seconds of track 1",CR,LF)
pause 10000
sertxd ("...pausing for 5 seconds...",CR,LF)
sertxd ("<Sent> e",CR,LF)
hserout 0,("e") ;note no CR here
pause 5000
sertxd ("...playing another 10 seconds of track",CR,LF)
sertxd ("<Sent> CR",CR,LF)
hserout 0,(CR)
gosub get_response
pause 10000
sertxd ("<Sent> Stopping track",CR,LF)
hserout 0,("vst",CR)
gosub get_response
; create a log file called 'log' (for some reason 'log.txt' didn't work)
; create a log file called 'log.txt' works with fw 03.54 bcjkiwi
; if you send 11 chars as the file name the last three will become the extension
; the '.' is inserted automatically
; Filename cannot include spaces
sertxd ("<Sent> Open file",CR,LF)
hserout 0,("opw log",CR)
gosub get_response
sertxd ("<Sent> write to file",CR,LF)
bintoascii loopcounter,b5,b6,b7 ; convert loopcounter byte to 3 ascii digits
; and write 8 bytes loop_xyz
hserout 0,("wrf ",$00,$00,$00,$08,CR,"loop_",b5,b6, b7,CR)
gosub get_response
sertxd ("<Sent> Close file",CR,LF)
hserout 0,("clf log",CR)
gosub get_response
inc loopcounter ; increment counter
goto main
; Sub procedure to receive background bytes
get_response:
pause 1000 ; wait a while
sertxd ("<Response> ")
point = 0 ; reset local pointer
get point,first_byte ; Save the first reply byte
do
get point,temp ; get returned byte
sertxd (temp) ; transmit it
inc point ; increment pointer
loop while temp <> CR ; if not CR loop
sertxd (LF) ; Add a LF to the received CR
sertxd (CR,LF) ; Do another blank line
hserptr = 0 ; reset the background receive pointer
return
; Other Useful Commands
; Play all tracks hserout 0,("w3a",CR)
; Stop track hserout 0,("vst",CR)
; Skip to Next Track hserout 0,("vsf",CR)
; Skip to Start of current Track hserout 0,("vsb",CR)
; Skip to Previous Track hserout 0,("vsb",CR,"vsb",CR)
; Pause hserout 0,("e") ; note no CR here
; Resume (after pause) hserout 0,(CR)
; Set Volume hserout 0,("vwr",$0B,vol_right,vol_left,CR)
; where $00 = maximum volume,$FE is the minimum
; Suspend disk hserout 0,("sud",CR)
; Wakeup disk hserout 0,("wkd",CR)
; Get firmware version hserout 0,("fwv",CR)
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