VINCULUM - Vmusic2 - Vdrive2 - Help

[mackrackit]

Welcome to the forum.

Give this a try in the totally lost area.

SERIN2 PORTB.6,84,[DEC vol,WAIT(":"),DEC vol2]

[Allister]

Hmm added the serin2 line and the code seems to hang on the jump and never return back to main, I wonder if there is something wrong with the open,read and close file commands I issued that is causing it not to spit up the data? Thus the serin2 can wait all day and never get anything.

[mackrackit]

These VDIP things can be a pain in the butt...

Try reading the data into an array without any WAITs and see exactly what is being sent by the VDIP.

[Allister]

I'm leaning towards this line being wrong.

serout PORTB.7, T9600, ["RD volume.txt", 13]  'read file

The more I read it might be RDF instead of RD and I need to specify the number of bytes to read in there somewhere, I guess.

And typo in the open command.

serout portb.7, T9600, ["OPR volume.txt", 13]
serout portb.7, T9600, ["RDF XXXXX, 13]
SERIN2 PORTB.6, 84,[DEC vol,WAIT(":"),DEC vol2]
serout portb.7, T9600, ["CLF volume.txt", 13]

At a lose what should be in XXXXX

The subroutine above is hanging.

[mackrackit]

serout PORTB.7, T9600, ["OPR volume.txt", 13] 'open file
serout PORTB.7, T9600, ["RD", 13]  'read file

Not sure if RDF will always work in your case because the amount of characters are not constant. But try the above...
I missed the W earlier and I think once the file is opened the name is not used until after it is closed and you need to open it again.

[Allister]

I just wrote a simple program that should test the reading of the file and give me audible alerts, since I'm not setup with any type of IDE or debug.

Here is the code so for those that are helping so we can be all on the same page. There are 4 files on the drive

volume.txt that contains simply

10:225

And three audio files named
vol10.mp3
vol225.mp3
vol3.mp3

In theory and hope,

b0 should play vol10.mp3
b1 should play vol225.mp3
b2 should play vol3.mp3

@ DEVICE pic16f88,HS_OSC,WDT_OFF,MCLR_OFF,LVP_OFF,PROTECT_ON,CPD_ON,DEBUG_OFF

Include "modedefs.bas"   
Define   OSC 8
        
CMCON = 7
ANSEL = 0

vol var byte
vol2 var byte
vol3 var byte

vol = 0
vol2 = 0
vol3 = 3

'in/out lines         
OUTPUT PORTB.7   'send out
input PORTB.6    'recieve in

'Triggers
input PORTB.0  'trigger
input PORTB.1  'trigger
INPUT PORTB.2  'trigger

'PORTA.6 = OSC
'PORTA.7 = OSC

pause 5000 'wait for vmusic2 to read drive and stabilize
serout PORTB.7, T9600, ["vsv 00",13] 'set full volume
pause 1000 'give time for volume command to take effect

gosub rdfile 'get numbers from text file

main:

if PORTB.0 = 0 THEN
    SEROUT PORTB.7, T9600, ["VPF vol",#vol,".mp3", 13]
    pause 2000 'debounce
endif

if PORTB.1 = 0 Then
    SEROUT PORTB.7, T9600, ["VPF vol",#vol2,".mp3", 13]
    pause 2000 'debounce
endif

if PORTB.2 = 0 Then
    SEROUT PORTB.7, T9600, ["VPF vol",#vol3,".mp3", 13]
    pause 2000 'debounce
endif

goto main
    

rdfile: 'read variables in text file volume.txt
serout PORTB.7, T9600, ["OPR volume.txt", 13]
serout PORTB.7, T9600, ["RD", 13]
SERIN2 PORTB.6, 84, [DEC vol,wait(":"),DEC vol2]
serout PORTB.7, T9600, ["CLF volume.txt", 13]
return

end 'if it gets lost along the way ;)

Right now as written above it doesn't return from the subroutine jump (it's stuck reading the file somewhere) confirmed when the control button b2 fails to function, remove the jump/recompile and b2 functions as expected.

Remove the WAIT command with say

SERIN2 PORTB.6, 84, [DEC vol,DEC vol3,DEC vol2]

And it still doesn't appear to return

[mackrackit]

I do not have a VDIP on the bench to test any of this but looking at the data sheet and my old code yours should work. But I have not used the VMUSIC, so maybe there is some difference there?

One thing that might be causing trouble is not enough time from Opening the file and Reading it. You have read this?
http://www.picbasic.co.uk/forum/show...7605#post47605
See how Brian has the VDIP connected with a Flow pin and the WAIT LABELS in the code.

Do you have the hardware to connect the output of the VDIP monitor to a PC terminal? You will need an inverter chip(MAX232 type).
Would be a big help to you to see what the VDIP is doing.