USB to USB flash Drive File Copier

**newbie** · - 21st February 2010, 13:44

What if you populate the array with a character that would probably not be used in a file name, (~), and parse the array for that before the array is used again.

Or, have a "working" array. This would be one that stored arrays are parsed into for using.

Stored array with (~) character
Stored array re-written into sandbox array
Sandbox array is sent to VDIP
Start over with next stored array.

Maybe....

are saying its like this:
say you have an array named FILE1 with 12 array places, i will pre-load it with (~) so...
FILE1 = [~][~][~][~][~][~][~][~][~][~][~][~]

and then when i receive a file named "vdip.txt" from the vdip serially, then the array would be like:
FILE1 = [v][d][i][p][.][t][x][t][~][~][~][~]
am i right with this? please correct me if im wrong...

then when i want to send command to the vdip that i want to copy that particular file, i will be sending the "CPS" command plus the array of bytes stored in FILE1 including the bytes that contains [~] back to the vdip, but the vinculum is very strict with the spelling...if i include these bytes it will respond with "command failed" if only i could remove those unneeded bytes before sending it back to the vdip...

am i getting your idea right?

**mackrackit** · - 22nd February 2010, 08:52

Thinking more about this the "~" will not do you any good. Still need to re-write the array but...

Assume file names should only contain letters and numbers. The problem is other characters are showing up..
So when the file name is read from the VDIP say it is saved into "arrayF". Before "arrayF" is used again it needs checked for bad characters. Right?

Again have a working array that will be used and/or reused to send back to the VDIP, "arrayW".

The bad characters are at the end of the name?
What if you check each bit of "arrayF" and IF the bit equals A-Z or 0-9 then that bit will be written to "arrayW". When the first bad character bit is found the re-write loop stops.
Now "arrayW" should only contain valid characters.

This thread should give you some ideas on how to process the arrays.
http://www.picbasic.co.uk/forum/showthread.php?t=8876

I hope this is on the correct track.

**newbie** · - 23rd February 2010, 15:05

this is so unfortunate..my vdip2 is suddenly not working...

the status LEDs do not light when i turn the circuit on.. it also does not respond when i insert flash drives...

i tried connecting it to the pc's serial port to see if the LEDs are just busted, but nothing happend. its as if there's nothing connected to the serial port.

i've measured the voltage supplied and i saw that the voltage was correct.

did anyone experience this? can there still be a remedy for this module?

**mackrackit** · - 23rd February 2010, 16:52

On the VDIP1 there is an active low reset pin. Can not remember the exact pin but I think it is 22. Double check for the VDIP2 and give that a try.

**newbie** · - 23rd February 2010, 17:16

ive been connecting that pin(rs#) to the ground using a push button. still nothing happend...no lights from the LEDs.

**Archangel** · - 24th February 2010, 03:09

Originally Posted by newbie

ive been connecting that pin(rs#) to the ground using a push button. still nothing happend...no lights from the LEDs.

And it gets to high state by . . . a Pullup ? WPU ? Fear ? Which is to ask, can it get there ? Or is it locked to reset in perpetuity ?

**newbie** · - 24th February 2010, 16:01

And it gets to high state by . . . a Pullup ? WPU ? Fear ? Which is to ask, can it get there ? Or is it locked to reset in perpetuity ?

are you suggesting to try pullup instead of pull down? done that...didn't work..

**Archangel** · - 25th February 2010, 07:13

Originally Posted by newbie

are you suggesting to try pullup instead of pull down? done that...didn't work..

If I understood you correctly, and I am not sure I did, your push button switches ground the ports. If that is true, then yes, a pull up resistor, either internal (wpu) or external would seem to be in order. If your push buttons make the ports go high, then a pull down resistor would be required.

**mackrackit** · - 25th February 2010, 08:02

The VDIP2 might be different but on the VDIP1 the reset pin is left floating when not in use. Seems strange yes but....

Sounds like a bad conection or the magic smoke got out.

**newbie** · - 27th February 2010, 15:59

i tried what joe said and used a pull up resistor,. still nothing happend.. that made me hopeless about my module and began thinking that mackrackit was right..may be magic smoke did got out. so i ordered another vdip2 module and its on its way here..

for the mean time, i'm in the middle of programming the push buttons for browsing the files. how do i program the buttons to execute the command only after releasing the button from being pressed. the reason i want it that way is because if i execute the command(e.g. scrolling the lcd with the file names) while the button is being pressed,some files names would be skipped due to very quick execution.

**mackrackit** · - 27th February 2010, 21:50

If the button pin is pulled LOW in an idle state ,active HIGH. You could use WHILE/WEND.

Code:

WHILE
BUTTON  = 1
DO SOMETHING
WEND

**newbie** · - 1st March 2010, 17:21

sir, in my program which is similar to the code back in post #63,
the LCD prints:

Ver 03.66-123VDFCF On-Line:

then clears the display and then finally displays the filename that i wanted to display. I saved the characters sent by the vdip2 into an array right after the "DIR" command so the "Ver 03.66-123VDFCF On-Line:" should not be included in those characters because they were sent at the time the vdip2 turned on and long before the "DIR" command was made..but how come they are still being displayed?

how do i effectively display only the characters that are the response to the current command and not display the characters that were sent by the vdip2 long before the command was made?

**mackrackit** · - 1st March 2010, 17:32

That is interesting. Please post your current code so we are sure to be talking about the same thing.

Just a thought...
You might try more than one array and or clear the the array at given points. It should over write it but...

Need to see the code...

Dave

**newbie** · - 2nd March 2010, 18:20

Code:

INCLUDE "modedefs.bas"

DEFINE LCD_DREG     PORTC
DEFINE LCD_DBIT     0
DEFINE LCD_RSREG    PORTD
DEFINE LCD_RSBIT    2
DEFINE LCD_EREG     PORTD
DEFINE LCD_EBIT     1
DEFINE LCD_RWREG    PORTD
DEFINE LCD_RWBIT    0
DEFINE LCD_BITS     8
DEFINE LCD_LINES    4
Define LCD_CHARS    20
DEFINE LCD_COMMANDUS    2000
DEFINE LCD_DATAUS   50

VinTXD VAR PORTD.4 'AD0
VinRXD VAR PORTD.3 'AD1
FlowIn VAR PORTD.5 'AD2

Pause 500  

FILE1 VAR BYTE[12]
FILE2 VAR BYTE[12]
FILE3 VAR BYTE[12]

X1	VAR	BYTE
X2	VAR	BYTE
X3	VAR	BYTE
X4	VAR	BYTE
X5	VAR	BYTE
X6	VAR	BYTE
X7	VAR	BYTE
X8	VAR	BYTE
X9	VAR	BYTE
X10	VAR	BYTE
X11	VAR	BYTE
X12	VAR	BYTE
X13  VAR	BYTE
X14  VAR	BYTE
X15  VAR	BYTE
X16  VAR	BYTE
X17  VAR	BYTE
X18  VAR    BYTE
X19  VAR	BYTE
X20  VAR	BYTE
X21  VAR	BYTE
X22  VAR	BYTE
X23  VAR	BYTE
X24  VAR	BYTE
X25  VAR	BYTE
X26  VAR	BYTE
X27  VAR	BYTE
X28  VAR	BYTE
X29  VAR	BYTE
X30  VAR	BYTE
X31  VAR	BYTE
X32  VAR	BYTE
X33  VAR	BYTE
X34  VAR	BYTE
X35  VAR	BYTE
X36  VAR	BYTE

CRET VAR BYTE
CRET = $0D
StartDisk:

HIGH VinRXD
PAUSEUS 1000
SEROUT2 VinRXD,8588,["ECS",13]
LCDOUT $FE,1, "1"
HIGH VinRXD
PAUSEUS 1000
SEROUT2 VinRXD,8588,["IPA",13]
LCDOUT $FE,1, "2"
HIGH VinRXD
PAUSEUS 1000
SEROUT2 VinRXD,8588,["A:",13]
LCDOUT $FE,1, "3"
HIGH VinRXD
PAUSEUS 100
SEROUT2 VinRXD,8588,["DIR",13]
LCDOUT $FE,1, "4"
PAUSEUS 1000
WAIT1
IF FLOWIN = 1 THEN WAIT1
SERIN2 VinTXD,8588,[WAIT(CRET),STR FILE1\12 \CRET,WAIT(CRET),STR FILE2\12 \CRET,WAIT(CRET),STR FILE3\12 \CRET]
LCDOUT $FE,1, "5"

X1 = FILE1[0]
X2 = FILE1[1]
X3 = FILE1[2]
X4 = FILE1[3]
X5 = FILE1[4]
X6 = FILE1[5]
X7 = FILE1[6]
X8 = FILE1[7]
X9 = FILE1[8]
X10 = FILE1[9]
X11 = FILE1[10]
X12 = FILE1[11]
X13 = FILE1[0]
X14 = FILE1[1]
X15 = FILE1[2]
X16 = FILE1[3]
X17 = FILE1[4]
X18 = FILE1[5]
X19 = FILE1[6]
X20 = FILE1[7]
X21 = FILE1[8]
X22 = FILE1[9]
X23 = FILE1[10]
X24 = FILE1[11]
X25 = FILE1[0]
X26 = FILE1[1]
X27 = FILE1[2]
X28 = FILE1[3]
X29 = FILE1[4]
X30 = FILE1[5]
X31 = FILE1[6]
X32 = FILE1[7]
X33 = FILE1[8]
X34 = FILE1[9]
X35 = FILE1[10]
X36 = FILE1[11]


PAUSE 100
LCDOUT $FE,1,X1,X2,X3,X4,X5,X6,X7,X8,x9,x10,x11,x12
LCDOUT $FE,$C0,X13,X14,X15,X16,X17,X18,X19,X20,X21,X22,X23,X24
LCDOUT $FE,$94,X25,X26,X27,X28,X29,X30,X31,X32,X33,X34,X35,X36


PAUSE 2000
goto StartDisk

Here is the code..i haven't been able to add other functions yet because im still addressing to the problem that i stated earlier..

oh and one more question, is it really necessary to save the the array values into another byte like for this instance the x's? cant i directly use these array values to be printed to the LCD?

**mackrackit** · - 2nd March 2010, 22:17

I do not see why the firmware info is being sent to the display...

What does this do?

Code:

SEROUT2 VinRXD,8588,["A:",13]

This is not the answer but it might be worth a try since it looks like you are now able to change the firmware. Un-check "Show Prompt" and "Show Version...".

oh and one more question, is it really necessary to save the the array values into another byte like for this instance the x's? cant i directly use these array values to be printed to the LCD?

The one array will do, I just thought it would be easier to parse the first array into the second for the info you want. But if you can get good data into the first array then the second is not needed at all.

There is also a "skip" function in the SERIN2 command that might help.

**newbie** · - 3rd March 2010, 01:17

thanks! that gave me more options to address to that problem..

What does this do?
Code:

SEROUT2 VinRXD,8588,["A:",13]

what this does is select drive A: of the vdip2. i used this because the vdip2 swiches to the drive where a flash drive is last inserted so just to make sure in case a drive is last inserted to drive B:, the vdip2 would still go back to port A:. I'm doing this because i want to set drive A: as the source drive and B: as the target drive.

arunkumar · - 3rd March 2010, 09:16

i am doing in vinculum ic project..i want to copy the files as well as view the pen drive content on LCD display.. i bought VDIP2 modules.. we inserted rom files 3.66...if it possible reply sir....we are using pic to interface with VDIP2....

reply as soon as possible.....

**mackrackit** · - 3rd March 2010, 11:38

Originally Posted by newbie

what this does is select drive A: of the vdip2. i used this because the vdip2 swiches to the drive where a flash drive is last inserted so just to make sure in case a drive is last inserted to drive B:, the vdip2 would still go back to port A:. I'm doing this because i want to set drive A: as the source drive and B: as the target drive.

OK, that is why I did not know, it is for the VDIP2.

You code loops back to "StartDisk:". Does the firmware version show up all of the time of just on the first time trhough?

**newbie** · - 4th March 2010, 00:28

the firmware only show up at the start of the program. and doesn't show up anymore unless you reset the vdip2. what do you think about this?

**mackrackit** · - 4th March 2010, 03:33

what do you think about this?

I think I am glad I gave up on the VDIP1!

My only guess is the VDIP buffer is not clearing till a DIR is sent.
Maybe at startup have a dummy routine that does everything but display to clear it up?

**newbie** · - 4th March 2010, 17:32

I guess unchecking the show prompt and show version would do the trick

thank you very much.

**fokus_1116** · - 8th March 2010, 19:54

HELO..

i am using pic18f4550,VDIP2 and 2line LCD ,20MHz, 9600 BAUD RATE and connect hyperterminal to monitor the result of the VDIP

but the hyperterminal only show Ver 03.66VDFC On-line...

anyone can help? my code is almost same with newbie

INCLUDE "modedefs.bas"

DEFINE OSC 20
DEFINE LCD_DREG PORTA
DEFINE LCD_DBIT 0
DEFINE LCD_RSREG PORTD
DEFINE LCD_RSBIT 5
DEFINE LCD_EREG PORTD
DEFINE LCD_EBIT 4
DEFINE LCD_RWREG PORTD
DEFINE LCD_RWBIT 6
DEFINE LCD_BITS 4
DEFINE LCD_LINES 2
DEFINE LCD_COMMANDUS 2000
DEFINE LCD_DATAUS 50

TXD VAR PORTC.7 'AD0 TXD VDIP2 connect RX
RXD VAR PORTC.6 'AD1 RXD VDIP2 connect TX
Flow VAR PORTC.0 'AD2 RTS

Start:
HIGH RXD
PAUSEUS 10
SEROUT2 RXD,8276,["ECS",13]
HIGH RXD
PAUSEUS 10
SEROUT2 RXD,8276,["IPA",13]
HIGH RXD
PAUSEUS 10
SEROUT2 RXD,8276,["A:",13] 'choose source disk
HIGH RXD
PAUSEUS 100
SEROUT2 RXD,8276,["DIR",13]
GOTO Start

**mackrackit** · - 8th March 2010, 20:03

Looks like you need to check your baud rates.
Those are not 9600

**fokus_1116** · - 8th March 2010, 20:08

u means the mode no of"8276" not 9600 baudrate? or the VDIP2 firmware not 9600 baudrate?

**mackrackit** · - 8th March 2010, 20:24

No, I mean what you had was not 9600

Start:
SEROUT2 VinRXD,84,["ECS",13] '9600 TRUE
HIGH VinRXD
PAUSEUS 10
SEROUT2 VinRXD,84,["IPA",13]
HIGH VinRXD
PAUSEUS 100
SEROUT2 VinRXD,8588,["DIR",13]
GOTO Start

And I have no idea what your firmware on the VDIP is.

**fokus_1116** · - 8th March 2010, 20:25

i ready the the firmware...no prob...
did u means change the mode no to 84?

**fokus_1116** · - 8th March 2010, 20:33

me already change to 84 but...also the same no respond for the hyperterminal...

**mackrackit** · - 8th March 2010, 20:47

Sorry, been a long day.
Either 84 or 16468 depending on if the PIC is connected to the VDIP with an inverter chip or not.

**fokus_1116** · - 8th March 2010, 20:50

the pic didt connect any inverter chip...the pic TX pin connect to the RXD pin of VDIP2 and RX pin connect to the TXD pin of the VDIP2

**mackrackit** · - 8th March 2010, 20:54

How is the VDIP connected to hyper-terminal?

**fokus_1116** · - 8th March 2010, 20:57

using rs232..like the diagram you post before

**mackrackit** · - 8th March 2010, 21:04

Can you make a schematic or exactly describe how everything is connected?
It might help with the guessing game

**fokus_1116** · - 8th March 2010, 21:11

thx for your help..

pic18f4550pin VDIP2pin RS232 pin

RC.7 RX AD0 TXD PIN11
RC.6 TX AD1 RXD
RC.0 I/O AD2 RTS
AD3 CONNECT TO GND

GOT ANY IDEA WHERE GOES WRONG?

**mackrackit** · - 8th March 2010, 21:26

Another thing I forgot to ask that could be a concern.

What are you using for an OSC at the PIC and how are the configuation bits set?
Can you connect the PIC directly to Hyper-Terminal and receive text correctly ? If so then you know the PIC is running at the expected speed.

Try inverted mode with out a 232 chip and then try true mode with a 232 chip.
Doing these test should help find the problem.

**fokus_1116** · - 8th March 2010, 21:39

i am using 20Mhz
and may i know how to set the config bit for picbasic pro because
'__config _XT_OSC & _WDT_OFF & _PWRTE _ON & _CP_OFF'
content error when build it.

how i try connect the tx pin of the pic to hyper terminal
thank for your suggest..

**fokus_1116** · - 8th March 2010, 21:47

is that just connect the TX pin of the pic to the max232 pin11 ? because i cant get the output from hyperterminal..

**fokus_1116** · - 9th March 2010, 02:20

my configuration bits is set as the picture.. but still cant make the pic it display thing on the hyperterminal...still got any suggestion?

**mackrackit** · - 9th March 2010, 05:10

The first thing we need to do is make sure the PIC is running at the speed you think it is, or know what speed it is running at.

These USB chips can be confusing ( for me anyways ) when it comes to setting the PLL and all. Bruce has a good explanation here that I refer to.
http://www.picbasic.co.uk/forum/show...85&postcount=4
So if you set the configs as he has them the PIC should be running at 48MHz.
DEFINE OSC 48

To check the speed write a code that will blink an LED at one second on and one second off.

Then refer to the PBP manual under SEROUT2. There it shows how to connect the chip to a PC. Send some text to a terminal.

When this is all working we can "talk" to the VDIP.

**fokus_1116** · - 9th March 2010, 07:01

for me also confuse for that part...so i change the pic 18f4550 to pic16f873A..this will more easy (i think)...now i try make it working on hyperterminal ....

**fokus_1116** · - 10th March 2010, 13:26

i still cannot display on the hyperterminal...still got any solution?

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