Re: [Gambas-user] Parallel Port - Illegal Seek -
mike ha scritto: On 04/07/2010 02:47 PM, nando wrote: Seek will not change the address. -- Original Message --- From: Doriano Blenginodoriano.bleng...@fastwebnet.it To: nand...@nothingsimple.com, mailing list for gambas users gambas-user@lists.sourceforge.net Sent: Wed, 07 Apr 2010 11:06:42 +0200 Subject: Re: [Gambas-user] Parallel Port - Illegal Seek - nando ha scritto: Using SEEK is not correct. If you think of the parallel port as a file, you cannot seek. It doesn't make sense. You can only read and write. What are you trying to accomplish ? -Fernando He is trying to do low level access to the parallel port, which has 3 hardware addresses. In that respect, seek() would make sense to select which IO address to read from/write to. Whether this works or not, depends on how the kernel driver interprets the seeks, but the following listing makes it clear that somewhere (other OSes?) this behavior works. The error could also arise from other problems: permissions, missing modules, wrong major/minor numbers and so on... Regards, Doriano How already stated in a previous email, it is possible to access I/O ports in different manners. After a research, I discovered two viable ways - direct access (I don't know if gambas has I/O instructions), and /dev/port, which is a device. In this last case seek() is used to address a port. From http://tldp.org/HOWTO/IO-Port-Programming-2.html : Another way to access I/O ports is to |open()| |/dev/port| (a character device, major number 1, minor 4) for reading and/or writing (the stdio |f*()| functions have internal buffering, so avoid them). Then |lseek()| to the appropriate byte in the file (file position 0 = port 0x00, file position 1 = port 0x01, and so on), and |read()| or |write()| a byte or word from or to it. Naturally, for this to work your program needs read/write access to |/dev/port|. This method is probably slower than the normal method above, but does not need compiler optimisation nor |ioperm()|. It doesn't need root access either, if you give a non-root user or group access to |/dev/port| --- but this is a very bad thing... [about security]... Using /dev/port can be problematic: can gambas do unbuffered I/O? Other methods would be to use some external program or library (shared object). If gambas does not have I/O (peek poke), then an external library is the most performant way, though not the simpler. Gambas can interface with external libraries using EXTERNAL declaration. Googling about this issue, I found some interesting page: http://tldp.org/HOWTO/IO-Port-Programming-2.html http://www.epanorama.net/circuits/parallel_output.html http://www.faqs.org/docs/Linux-mini/IO-Port-Programming.html http://cyberelk.net/tim/parport/parport.html http://people.redhat.com/twaugh/parport/html/ppdev.html The best way would be to write a gambas component, having either internal I/O instructions (a C component) or relying to an external library (a gambas component calling an external library; may be there is something already done somewhere). Hey, gambas gurus out there... someone has the time? I do not. Regards, Doriano -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Parallel Port - Illegal Seek -
Hi All, I am writing a parallel port interface, however I am struggling with how to write to the parallel port. Below I have included the code that I have used. Following that I have included the BASIC code that I am bastardizing. My Gambas version is Gambas2.13 I am running Linux Mint 8 I do have a parallel port on my PC. It is '0378' - '037a' and '0778' - '077a' The error code I am getting is System error. illegal seek Thanks in advance for any help anyone can give. -GAMBAS 2 CODE FOLLOWS-- ' Gambas module file PUBLIC SUB Main() DIM N AS Integer DIM pin AS Integer DIM pinout AS Integer[] = [0, 0, 0, 0, 0, 0, 0, 0] DIM pump AS Integer DIM Ptime AS Integer DIM Clock AS Integer DIM UClock AS Integer DIM DClock AS Integer DIM commit AS Integer DIM poweron AS Integer DIM switch AS Integer DIM gate AS File DIM base0, base1, base2 AS Integer base0 = 0 base1 = 1 base2 = 2 poweron = 64 commit = 144 switch = 17 UClock = 130 DClock = 128 gate = OPEN /dev/parport0 FOR READ WRITE SEEK #gate, base0 WRITE #gate, poweron FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base2 WRITE #gate, switch GOTO START CommitChanges: FOR N = 0 TO 7 STEP 1 pump = CInt(100 pinout[Fix(N)]) Clock = CInt(101 pinout[Fix(N)]) SEEK #gate, base0 WRITE #gate, pump FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, Clock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, pump NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT FOR N = 1 TO 16 STEP 1 SEEK #gate, base0 WRITE #gate, UClock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, DClock NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, commit FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, poweron GOTO PrintPinout PrintPinout: FOR N = 0 TO 7 STEP 1 PRINT pinout[Fix(N)] NEXT GOTO START PinSelectFail: PRINT You have selected a pin that does not exist, careful as this may cause a divide by 0 and end the universe, Select between pin 0 and pin 7 GOTO START START: PRINT What input do you want to toggle? (pins 0 - 7 are outputs, Pin 8 is the activation sequence) INPUT pin IF pin 0 OR pin 8 THEN GOTO PinSelectFail ELSE IF pin = 8 THEN GOTO CommitChanges ELSE IF pinout[Fix(pin)] = 0 THEN pinout[Fix(pin)] = 1 ELSE IF pinout[Fix(pin)] = 1 THEN pinout[Fix(pin)] = 0 ENDIF GOTO PrintPinout END -Gambas 2 END--- - -BASIC CODE FOLLOWS-- BASE0=H378 'SWITCH POWER AND OUTPUTS ON OUT BASE0, H80 OUT BASE0 + 2, 11 'DEFINE ALL DIGITAL OUTPUTS [OUT(N)] AS BEING OFF (0) FOR N = 0 TO 7 DOUT(N) = 0 NEXT N DOUT=0 START: INPUT WHICH DIGITAL OUTPUT DO YOU WANT TO TOGGLE (0 TO 7); N IF N 0 OR N 7 THEN GOTO START N = FIX(N) DOUT9N0=ABS(NOT (-DOUT(N))) ' THIS LINE TOGGLES THE OUTPUT 'CREATE COMPLETE BYTE FOR IC3 CALLED DOUT FOR N = 0 TO 7 IF DOUT(N) = 0 THEN DOUT = DOUT AND NOT (2^N) ELSE DOUT = DOUT OR 2^N ENDIF NEXT N 'SEND 8 CLOCK PULSES AND DIGITAL OUT DATA (ALL ZERO'S) FOR BIT = 1 TO 8 B = 8 - BIT BYTE = ((DOUT AND 2^B) / 2^B) OR H80 OUT BASE0, BYTE OUT BASE0, BYTE OR 2 OUT BASE0 BYTE NEXT BIT 'SEND ANOTHER 16 CLOCK PULSES TO SHIFT THE DATA INTO IC3 FOR BIT = 9 TO 24 OUT BASE0, H82 OUT BASE0, H80 NEXT BIT 'LOAD IC3 OUT BASE0, H90 OUT BASE0, h80] -BASIC END Bjorn Macintosh Have you read http://gambasdoc.org/help/howto/parport? Your program should work as expected if you open /dev/port, not /dev/parport0, if you seek at the true port address, and if you write bytes. DIM poweron AS Byte ' -- note that gate = OPEN /dev/parport0 FOR READ WRITE SEEK #gate, H378 poweron = 1 WRITE #gate, poweron And if you need to wait a little, use the SLEEP or WAIT instruction. See the documentation for details on these instructions. I imagine that if you write Integer instead of Byte, then you will actually write the four bytes of the integer to four successive ports. Regards, -- Benoît Minisini -- Download Intel#174; Parallel Studio Eval Try the new software
Re: [Gambas-user] Parallel Port
Hi there, I don't have a program to offer you. All my old code is in other languages. I did however write a little working example for you. You will need to use port, not parport0. For some reason that is unknown to me, I too, am unable to get parport to work correctly from gambas. I tested the code below, and it does work. I ran it a few times on a system with Ubuntu 9.04, gambas 2.20, and a little parallel port tester I made 20 years ago. Unless you have already sorted out permission to access 'port', you will need to be root to run it, either start gambas as root, or compile it and then run the executable as root. PUBLIC SUB Main() ' Gambas module file DIM pport AS File DIM bi, bo AS Byte pport = OPEN /dev/port FOR READ WRITE FOR bo = 32 TO 122 SEEK #pport, 888 WRITE #pport, bo SEEK #pport, 888 READ #pport, bi PRINT Chr(bi) WAIT 0.05 NEXT CLOSE #pport END Just a quick mention about seek on ports. Seek simply takes you to the port address. Notice I used a seek before each read or write. 888 (0x378): Data 889 (0x379): Status 890 0x37A) : Control Hope this helps Regards Les Hardy Bjorn Macintosh wrote: Hi all, Does anyone have a program that interfaces with the parallel port, one written in Gambas. If you do would you be willing to share this program with me as I am trying to write a parallel port interface and am struggling to get my head around a few concepts. mainly how to write to the port and how to select pin's base 0 base1 and base2. Any help would be greatly appreciated. I sent a post two days ago holding the full details on my program and what I am trying to do if you need any clarification. Thanks Bjorn Macintosh -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Parallel Port
Hi there, I don't have a program to offer you. All my old code is in other languages. I did however write a little working example for you. You will need to use port, not parport0. For some reason that is unknown to me, I too, am unable to get parport to work correctly from gambas. I tested the code below, and it does work. I ran it a few times on a system with Ubuntu 9.04, gambas 2.20, and a little parallel port tester I made 20 years ago. Unless you have already sorted out permission to access 'port', you will need to be root to run it, either start gambas as root, or compile it and then run the executable as root. PUBLIC SUB Main() ' Gambas module file DIM pport AS File DIM bi, bo AS Byte pport = OPEN /dev/port FOR READ WRITE FOR bo = 32 TO 122 SEEK #pport, 888 WRITE #pport, bo SEEK #pport, 888 READ #pport, bi PRINT Chr(bi) WAIT 0.05 NEXT CLOSE #pport END Just a quick mention about seek on ports. Seek simply takes you to the port address. Notice I used a seek before each read or write. 888 (0x378): Data 889 (0x379): Status 890 0x37A) : Control Hope this helps Regards Les Hardy And you can even look in the Linux kernel source code to see how /dev/port is implemented: a few lines of code in '/usr/src/linux/drivers/char/mem.c'. Regards, -- Benoît Minisini -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Parallel Port - Illegal Seek -
nando ha scritto: Using SEEK is not correct. If you think of the parallel port as a file, you cannot seek. It doesn't make sense. You can only read and write. What are you trying to accomplish ? -Fernando He is trying to do low level access to the parallel port, which has 3 hardware addresses. In that respect, seek() would make sense to select which IO address to read from/write to. Whether this works or not, depends on how the kernel driver interprets the seeks, but the following listing makes it clear that somewhere (other OSes?) this behavior works. The error could also arise from other problems: permissions, missing modules, wrong major/minor numbers and so on... Regards, Doriano -- Original Message --- From: Bjorn Macintosh bjorn.macint...@gmail.com To: gambas-user@lists.sourceforge.net Sent: Fri, 2 Apr 2010 21:09:58 +1300 Subject: [Gambas-user] Parallel Port - Illegal Seek - Hi All, I am writing a parallel port interface, however I am struggling with how to write to the parallel port. Below I have included the code that I have used. Following that I have included the BASIC code that I am bastardizing. My Gambas version is Gambas2.13 I am running Linux Mint 8 I do have a parallel port on my PC. It is '0378' - '037a' and '0778' - '077a' The error code I am getting is System error. illegal seek Thanks in advance for any help anyone can give. -GAMBAS2 CODE FOLLOWS-- ' Gambas module file PUBLIC SUB Main() DIM N AS Integer DIM pin AS Integer DIM pinout AS Integer[] = [0, 0, 0, 0, 0, 0, 0, 0] DIM pump AS Integer DIM Ptime AS Integer DIM Clock AS Integer DIM UClock AS Integer DIM DClock AS Integer DIM commit AS Integer DIM poweron AS Integer DIM switch AS Integer DIM gate AS File DIM base0, base1, base2 AS Integer base0 = 0 base1 = 1 base2 = 2 poweron = 64 commit = 144 switch = 17 UClock = 130 DClock = 128 gate = OPEN /dev/parport0 FOR READ WRITE SEEK #gate, base0 WRITE #gate, poweron FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base2 WRITE #gate, switch GOTO START CommitChanges: FOR N = 0 TO 7 STEP 1 pump = CInt(100 pinout[Fix(N)]) Clock = CInt(101 pinout[Fix(N)]) SEEK #gate, base0 WRITE #gate, pump FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, Clock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, pump NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT FOR N = 1 TO 16 STEP 1 SEEK #gate, base0 WRITE #gate, UClock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, DClock NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, commit FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, poweron GOTO PrintPinout PrintPinout: FOR N = 0 TO 7 STEP 1 PRINT pinout[Fix(N)] NEXT GOTO START PinSelectFail: PRINT You have selected a pin that does not exist, careful as this may cause a divide by 0 and end the universe, Select between pin 0 and pin 7 GOTO START START: PRINT What input do you want to toggle? (pins 0 - 7 are outputs, Pin 8 is the activation sequence) INPUT pin IF pin 0 OR pin 8 THEN GOTO PinSelectFail ELSE IF pin = 8 THEN GOTO CommitChanges ELSE IF pinout[Fix(pin)] = 0 THEN pinout[Fix(pin)] = 1 ELSE IF pinout[Fix(pin)] = 1 THEN pinout[Fix(pin)] = 0 ENDIF GOTO PrintPinout END -Gambas2 END -BASIC CODE FOLLOWS-- BASE0=H378 'SWITCH POWER AND OUTPUTS ON OUT BASE0, H80 OUT BASE0 + 2, 11 'DEFINE ALL DIGITAL OUTPUTS [OUT(N)] AS BEING OFF (0) FOR N = 0 TO 7 DOUT(N) = 0 NEXT N DOUT=0 START: INPUT WHICH DIGITAL OUTPUT DO YOU WANT TO TOGGLE (0 TO 7); N IF N 0 OR N 7 THEN GOTO START N = FIX(N) DOUT9N0=ABS(NOT (-DOUT(N))) ' THIS LINE TOGGLES THE OUTPUT 'CREATE COMPLETE BYTE FOR IC3 CALLED DOUT FOR N = 0 TO 7 IF DOUT(N) = 0 THEN DOUT = DOUT AND NOT (2^N) ELSE DOUT = DOUT OR 2^N ENDIF NEXT N 'SEND 8 CLOCK PULSES AND DIGITAL OUT DATA (ALL ZERO'S) FOR BIT = 1 TO 8 B = 8 - BIT BYTE = ((DOUT AND 2^B) / 2^B) OR H80 OUT BASE0, BYTE OUT BASE0, BYTE OR 2 OUT BASE0 BYTE NEXT BIT 'SEND ANOTHER 16 CLOCK PULSES TO SHIFT THE DATA INTO IC3 FOR BIT = 9 TO 24 OUT BASE0, H82 OUT BASE0, H80 NEXT BIT 'LOAD IC3 OUT BASE0, H90 OUT BASE0, h80
Re: [Gambas-user] Parallel Port - Illegal Seek -
Seek will not change the address. -- Original Message --- From: Doriano Blengino doriano.bleng...@fastwebnet.it To: nand...@nothingsimple.com, mailing list for gambas users gambas-user@lists.sourceforge.net Sent: Wed, 07 Apr 2010 11:06:42 +0200 Subject: Re: [Gambas-user] Parallel Port - Illegal Seek - nando ha scritto: Using SEEK is not correct. If you think of the parallel port as a file, you cannot seek. It doesn't make sense. You can only read and write. What are you trying to accomplish ? -Fernando He is trying to do low level access to the parallel port, which has 3 hardware addresses. In that respect, seek() would make sense to select which IO address to read from/write to. Whether this works or not, depends on how the kernel driver interprets the seeks, but the following listing makes it clear that somewhere (other OSes?) this behavior works. The error could also arise from other problems: permissions, missing modules, wrong major/minor numbers and so on... Regards, Doriano -- Original Message --- From: Bjorn Macintosh bjorn.macint...@gmail.com To: gambas-user@lists.sourceforge.net Sent: Fri, 2 Apr 2010 21:09:58 +1300 Subject: [Gambas-user] Parallel Port - Illegal Seek - Hi All, I am writing a parallel port interface, however I am struggling with how to write to the parallel port. Below I have included the code that I have used. Following that I have included the BASIC code that I am bastardizing. My Gambas version is Gambas2.13 I am running Linux Mint 8 I do have a parallel port on my PC. It is '0378' - '037a' and '0778' - '077a' The error code I am getting is System error. illegal seek Thanks in advance for any help anyone can give. -GAMBAS2 CODE FOLLOWS-- ' Gambas module file PUBLIC SUB Main() DIM N AS Integer DIM pin AS Integer DIM pinout AS Integer[] = [0, 0, 0, 0, 0, 0, 0, 0] DIM pump AS Integer DIM Ptime AS Integer DIM Clock AS Integer DIM UClock AS Integer DIM DClock AS Integer DIM commit AS Integer DIM poweron AS Integer DIM switch AS Integer DIM gate AS File DIM base0, base1, base2 AS Integer base0 = 0 base1 = 1 base2 = 2 poweron = 64 commit = 144 switch = 17 UClock = 130 DClock = 128 gate = OPEN /dev/parport0 FOR READ WRITE SEEK #gate, base0 WRITE #gate, poweron FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base2 WRITE #gate, switch GOTO START CommitChanges: FOR N = 0 TO 7 STEP 1 pump = CInt(100 pinout[Fix(N)]) Clock = CInt(101 pinout[Fix(N)]) SEEK #gate, base0 WRITE #gate, pump FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, Clock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, pump NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT FOR N = 1 TO 16 STEP 1 SEEK #gate, base0 WRITE #gate, UClock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, DClock NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, commit FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, poweron GOTO PrintPinout PrintPinout: FOR N = 0 TO 7 STEP 1 PRINT pinout[Fix(N)] NEXT GOTO START PinSelectFail: PRINT You have selected a pin that does not exist, careful as this may cause a divide by 0 and end the universe, Select between pin 0 and pin 7 GOTO START START: PRINT What input do you want to toggle? (pins 0 - 7 are outputs, Pin 8 is the activation sequence) INPUT pin IF pin 0 OR pin 8 THEN GOTO PinSelectFail ELSE IF pin = 8 THEN GOTO CommitChanges ELSE IF pinout[Fix(pin)] = 0 THEN pinout[Fix(pin)] = 1 ELSE IF pinout[Fix(pin)] = 1 THEN pinout[Fix(pin)] = 0 ENDIF GOTO PrintPinout END -Gambas2 END -BASIC CODE FOLLOWS-- BASE0=H378 'SWITCH POWER AND OUTPUTS ON OUT BASE0, H80 OUT BASE0 + 2, 11 'DEFINE ALL DIGITAL OUTPUTS [OUT(N)] AS BEING OFF (0) FOR N = 0 TO 7 DOUT(N) = 0 NEXT N DOUT=0 START: INPUT WHICH DIGITAL OUTPUT DO YOU WANT TO TOGGLE (0 TO 7); N IF N 0 OR N 7 THEN GOTO START N = FIX(N) DOUT9N0=ABS(NOT (-DOUT(N))) ' THIS LINE TOGGLES THE OUTPUT 'CREATE COMPLETE BYTE FOR IC3 CALLED DOUT FOR N = 0 TO 7 IF DOUT(N) = 0 THEN DOUT = DOUT AND NOT (2^N) ELSE
Re: [Gambas-user] Parallel Port - Illegal Seek -
On 04/07/2010 02:47 PM, nando wrote: Seek will not change the address. -- Original Message --- From: Doriano Blenginodoriano.bleng...@fastwebnet.it To: nand...@nothingsimple.com, mailing list for gambas users gambas-user@lists.sourceforge.net Sent: Wed, 07 Apr 2010 11:06:42 +0200 Subject: Re: [Gambas-user] Parallel Port - Illegal Seek - nando ha scritto: Using SEEK is not correct. If you think of the parallel port as a file, you cannot seek. It doesn't make sense. You can only read and write. What are you trying to accomplish ? -Fernando He is trying to do low level access to the parallel port, which has 3 hardware addresses. In that respect, seek() would make sense to select which IO address to read from/write to. Whether this works or not, depends on how the kernel driver interprets the seeks, but the following listing makes it clear that somewhere (other OSes?) this behavior works. The error could also arise from other problems: permissions, missing modules, wrong major/minor numbers and so on... Regards, Doriano -- Original Message --- From: Bjorn Macintoshbjorn.macint...@gmail.com To: gambas-user@lists.sourceforge.net Sent: Fri, 2 Apr 2010 21:09:58 +1300 Subject: [Gambas-user] Parallel Port - Illegal Seek - Hi All, I am writing a parallel port interface, however I am struggling with how to write to the parallel port. Below I have included the code that I have used. Following that I have included the BASIC code that I am bastardizing. My Gambas version is Gambas2.13 I am running Linux Mint 8 I do have a parallel port on my PC. It is '0378' - '037a' and '0778' - '077a' The error code I am getting is System error. illegal seek Thanks in advance for any help anyone can give. -GAMBAS2 CODE FOLLOWS-- ' Gambas module file PUBLIC SUB Main() DIM N AS Integer DIM pin AS Integer DIM pinout AS Integer[] = [0, 0, 0, 0, 0, 0, 0, 0] DIM pump AS Integer DIM Ptime AS Integer DIM Clock AS Integer DIM UClock AS Integer DIM DClock AS Integer DIM commit AS Integer DIM poweron AS Integer DIM switch AS Integer DIM gate AS File DIM base0, base1, base2 AS Integer base0 = 0 base1 = 1 base2 = 2 poweron = 64 commit = 144 switch = 17 UClock = 130 DClock = 128 gate = OPEN /dev/parport0 FOR READ WRITE SEEK #gate, base0 WRITE #gate, poweron FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base2 WRITE #gate, switch GOTO START CommitChanges: FOR N = 0 TO 7 STEP 1 pump = CInt(100 pinout[Fix(N)]) Clock = CInt(101 pinout[Fix(N)]) SEEK #gate, base0 WRITE #gate, pump FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, Clock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, pump NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT FOR N = 1 TO 16 STEP 1 SEEK #gate, base0 WRITE #gate, UClock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, DClock NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, commit FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, poweron GOTO PrintPinout PrintPinout: FOR N = 0 TO 7 STEP 1 PRINT pinout[Fix(N)] NEXT GOTO START PinSelectFail: PRINT You have selected a pin that does not exist, careful as this may cause a divide by 0 and end the universe, Select between pin 0 and pin 7 GOTO START START: PRINT What input do you want to toggle? (pins 0 - 7 are outputs, Pin 8 is the activation sequence) INPUT pin IF pin 0 OR pin 8 THEN GOTO PinSelectFail ELSE IF pin = 8 THEN GOTO CommitChanges ELSE IF pinout[Fix(pin)] = 0 THEN pinout[Fix(pin)] = 1 ELSE IF pinout[Fix(pin)] = 1 THEN pinout[Fix(pin)] = 0 ENDIF GOTO PrintPinout END -Gambas2 END -BASIC CODE FOLLOWS-- BASE0=H378 'SWITCH POWER AND OUTPUTS ON OUT BASE0,H80 OUT BASE0 + 2, 11 'DEFINE ALL DIGITAL OUTPUTS [OUT(N)] AS BEING OFF (0) FOR N = 0 TO 7 DOUT(N) = 0 NEXT N DOUT=0 START: INPUT WHICH DIGITAL OUTPUT DO YOU WANT TO TOGGLE (0 TO 7); N IF N 0 OR N 7 THEN GOTO START N = FIX(N) DOUT9N0=ABS(NOT (-DOUT(N))) ' THIS LINE TOGGLES THE OUTPUT 'CREATE COMPLETE BYTE FOR IC3 CALLED DOUT FOR N = 0 TO 7 IF DOUT(N) = 0 THEN DOUT = DOUT AND NOT (2^N) ELSE DOUT = DOUT OR 2^N
Re: [Gambas-user] Parallel Port - Illegal Seek -
Using SEEK is not correct. If you think of the parallel port as a file, you cannot seek. It doesn't make sense. You can only read and write. What are you trying to accomplish ? -Fernando -- Original Message --- From: Bjorn Macintosh bjorn.macint...@gmail.com To: gambas-user@lists.sourceforge.net Sent: Fri, 2 Apr 2010 21:09:58 +1300 Subject: [Gambas-user] Parallel Port - Illegal Seek - Hi All, I am writing a parallel port interface, however I am struggling with how to write to the parallel port. Below I have included the code that I have used. Following that I have included the BASIC code that I am bastardizing. My Gambas version is Gambas2.13 I am running Linux Mint 8 I do have a parallel port on my PC. It is '0378' - '037a' and '0778' - '077a' The error code I am getting is System error. illegal seek Thanks in advance for any help anyone can give. -GAMBAS2 CODE FOLLOWS-- ' Gambas module file PUBLIC SUB Main() DIM N AS Integer DIM pin AS Integer DIM pinout AS Integer[] = [0, 0, 0, 0, 0, 0, 0, 0] DIM pump AS Integer DIM Ptime AS Integer DIM Clock AS Integer DIM UClock AS Integer DIM DClock AS Integer DIM commit AS Integer DIM poweron AS Integer DIM switch AS Integer DIM gate AS File DIM base0, base1, base2 AS Integer base0 = 0 base1 = 1 base2 = 2 poweron = 64 commit = 144 switch = 17 UClock = 130 DClock = 128 gate = OPEN /dev/parport0 FOR READ WRITE SEEK #gate, base0 WRITE #gate, poweron FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base2 WRITE #gate, switch GOTO START CommitChanges: FOR N = 0 TO 7 STEP 1 pump = CInt(100 pinout[Fix(N)]) Clock = CInt(101 pinout[Fix(N)]) SEEK #gate, base0 WRITE #gate, pump FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, Clock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, pump NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT FOR N = 1 TO 16 STEP 1 SEEK #gate, base0 WRITE #gate, UClock FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, DClock NEXT FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, commit FOR Ptime = 1 TO 2000 STEP 1 NEXT SEEK #gate, base0 WRITE #gate, poweron GOTO PrintPinout PrintPinout: FOR N = 0 TO 7 STEP 1 PRINT pinout[Fix(N)] NEXT GOTO START PinSelectFail: PRINT You have selected a pin that does not exist, careful as this may cause a divide by 0 and end the universe, Select between pin 0 and pin 7 GOTO START START: PRINT What input do you want to toggle? (pins 0 - 7 are outputs, Pin 8 is the activation sequence) INPUT pin IF pin 0 OR pin 8 THEN GOTO PinSelectFail ELSE IF pin = 8 THEN GOTO CommitChanges ELSE IF pinout[Fix(pin)] = 0 THEN pinout[Fix(pin)] = 1 ELSE IF pinout[Fix(pin)] = 1 THEN pinout[Fix(pin)] = 0 ENDIF GOTO PrintPinout END -Gambas2 END -BASIC CODE FOLLOWS-- BASE0=H378 'SWITCH POWER AND OUTPUTS ON OUT BASE0, H80 OUT BASE0 + 2, 11 'DEFINE ALL DIGITAL OUTPUTS [OUT(N)] AS BEING OFF (0) FOR N = 0 TO 7 DOUT(N) = 0 NEXT N DOUT=0 START: INPUT WHICH DIGITAL OUTPUT DO YOU WANT TO TOGGLE (0 TO 7); N IF N 0 OR N 7 THEN GOTO START N = FIX(N) DOUT9N0=ABS(NOT (-DOUT(N))) ' THIS LINE TOGGLES THE OUTPUT 'CREATE COMPLETE BYTE FOR IC3 CALLED DOUT FOR N = 0 TO 7 IF DOUT(N) = 0 THEN DOUT = DOUT AND NOT (2^N) ELSE DOUT = DOUT OR 2^N ENDIF NEXT N 'SEND 8 CLOCK PULSES AND DIGITAL OUT DATA (ALL ZERO'S) FOR BIT = 1 TO 8 B = 8 - BIT BYTE = ((DOUT AND 2^B) / 2^B) OR H80 OUT BASE0, BYTE OUT BASE0, BYTE OR 2 OUT BASE0 BYTE NEXT BIT 'SEND ANOTHER 16 CLOCK PULSES TO SHIFT THE DATA INTO IC3 FOR BIT = 9 TO 24 OUT BASE0, H82 OUT BASE0, H80 NEXT BIT 'LOAD IC3 OUT BASE0, H90 OUT BASE0, h80] -BASIC END Bjorn Macintosh -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev
Re: [Gambas-user] Parallel Port - Kadaitcha Man
Bjorn Macintosh ha scritto: Hiya, My Gambas version is Gambas2.13 I am running Linux Mint 8 I do have a parallel port on my PC. It is '0378' - '037a' and '0778' - '077a' The error code I am getting is System error. illegal seek I had already found and gone through the link you sent, it is what part of my code was based on. If you have read it and can fully understand it can you tell me what iPortNumber should be in order for me to access the parallel port. I was thinking it would be 888 as a integer (378 in hex is 888 in dec) however I don't appear to have got a result from this. I tryed 378 aswell without result. I would try polling each and every port however I understand this would potentially break my pc. not my favourite option. On a standard PC the parallel ports should be on 0x378 (first), 0x278 (second), ox3bc (alternate address). Your address 0x778 sounds strange, even if possible (everything is possible...). Every PC parallel port takes three consecutive I/O address, namely BASE+0, BASE+1 and BASE+2. So the standard first port should be at address 0x378 (to write the eight data bit pins); 0x379 (to read the printer status) and 0x37A (to write some addition I/O). Anyway, this should be of little importance to you, because the linux kernel abstract these addresses, and maps a device which should hide those details. You can take some more info with the command cat /proc/ioports: if you don't see the addresses you expect, then you should insert some module in the kernel (modprobe parport, modprobe lp, or similar). Once verified that your machine has a parallel port, and that the kernel sees it, you can start to program. I really don't know if the gambas sources you have are correct, at first sight they seem ok, but a seek operation on a character devices is impossible... is your /dev/parport0 a character device? Another thing, may be that to access a device in similar manner you need some privileges - try to run the program as root. Another way would be to use the I/O kernel space directly: in /dev you could find a device (/dev/port?) which gives you access to all the IO space. A third way is to use the IN and OUT instructions, bypassing the kernel completely (but you need to ask permission before, and perhaps gambas does not have IN and OUT instructions). Unfortunately, right now, I am on a machine which lacks a parallel port, so I can't experiment. But you can google for these three methods to access hardware. Regards, -- Doriano Blengino Listen twice before you speak. This is why we have two ears, but only one mouth. -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Parallel Port - Kadaitcha Man
On Sunday 04 April 2010, Bjorn Macintosh wrote: Hiya, I had already found and gone through the link you sent, it is what part of my code was based on. If you have read it and can fully understand it can you tell me what iPortNumber should be in order for me to access the parallel port. I was thinking it would be 888 as a integer (378 in hex is 888 in dec) however I don't appear to have got a result from this. I tryed 378 aswell without result. I would try polling each and every port however I understand this would potentially break my pc. not my favourite option. Thanks Bjorn Macintosh Read exactly which port you must open in the gambas documentation for your used code. using: 2.2 An alternate method: It is written in the example below. :) Best regards, Ron_1st -- 111.11 x 111.11 = 12345.678987654321 -- A: Delete the text you reply on. Q: What to do to get my post on top? --- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? --- A: Top-posting. Q: What is the most annoying thing in e-mail? -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Parallel Port
Hi all, Does anyone have a program that interfaces with the parallel port, one written in Gambas. If you do would you be willing to share this program with me as I am trying to write a parallel port interface and am struggling to get my head around a few concepts. mainly how to write to the port and how to select pin's base 0 base1 and base2. Any help would be greatly appreciated. I sent a post two days ago holding the full details on my program and what I am trying to do if you need any clarification. Thanks Bjorn Macintosh -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Parallel Port
On 4 April 2010 08:14, Bjorn Macintosh bjorn.macint...@gmail.com wrote: Hi all, Does anyone have a program that interfaces with the parallel port, one written in Gambas. If you do would you be willing to share this program with me as I am trying to write a parallel port interface and am struggling to get my head around a few concepts. mainly how to write to the port and how to select pin's base 0 base1 and base2. Any help would be greatly appreciated. http://lmgtfy.com/?q=gambas+%22parallel+port%22 -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Parallel Port - Kadaitcha Man
Hiya, I had already found and gone through the link you sent, it is what part of my code was based on. If you have read it and can fully understand it can you tell me what iPortNumber should be in order for me to access the parallel port. I was thinking it would be 888 as a integer (378 in hex is 888 in dec) however I don't appear to have got a result from this. I tryed 378 aswell without result. I would try polling each and every port however I understand this would potentially break my pc. not my favourite option. Thanks Bjorn Macintosh -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Parallel Port Programming in Gambas
Hi all, I am new to Gambas 2.16 and also Ubuntu 9.04. I trying to write a Gambas program to control parallel port's input/output in Ubuntu. For example, Switch parallel port pin 2 to on or off. From How To Use Parallel Port http://gambasdoc.org/help/howto/parport Solution 1: opening /dev/port with OPEN and read/write at a specific location. Solution 2: Based on a C library named 'parapin' For solution 2, how Gambas can access the parapin library? Thank you in advance. New Email names for you! Get the Email name you#39;ve always wanted on the new @ymail and @rocketmail. Hurry before someone else does! http://mail.promotions.yahoo.com/newdomains/aa/ -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
