On Thu, 30 Mar 2023 10:02:49 +0200, Tomas Hajny via fpc-pascal
wrote:
>On 30 March 2023 9:36:35 +0200, Marco van de Voort via fpc-pascal
> wrote:
>>On 30-3-2023 07:38, Bo Berglund via fpc-pascal wrote:
>>> The problem seems to be that neither is a valid COFF file acc
I need to read and write data to an EEPROM connected by I2C on a RaspberryPi4.
The I2C channel is found in /dev as i2c-1:
$ ll /dev/i2*
crw-rw 1 root i2c 89, 1 2019-02-14 11:12 /dev/i2c-1
In this channel the EEPROM CAT24C128 is at address 0x50
The data on the device is organized as 256 pages
On Sat, 1 Apr 2023 20:30:02 -0400, Travis Siegel via fpc-pascal
wrote:
>Generally, raspberry pi devices connected to other devices will (by
>default) use python for their programming. The python libs have all the
>setup and tear down code built in. You can use C as well, so I see no
>reason
On Sun, 2 Apr 2023 07:31:43 +0200, Christo Crause via fpc-pascal
wrote:
>On Sat, Apr 1, 2023 at 9:57?PM Bo Berglund via fpc-pascal <
>fpc-pascal@lists.freepascal.org> wrote:
>
>> Question:
>> Can I use Linux file system commands to read/write the data on the i2c
>&g
On Sun, 02 Apr 2023 10:23:24 +0200, Bo Berglund via fpc-pascal
wrote:
>On Sun, 2 Apr 2023 07:31:43 +0200, Christo Crause via fpc-pascal
> wrote:
>
>>On Sat, Apr 1, 2023 at 9:57?PM Bo Berglund via fpc-pascal <
>>fpc-pascal@lists.freepascal.org> wrote:
>>
>&
On Sun, 2 Apr 2023 07:31:43 +0200, Christo Crause via fpc-pascal
wrote:
>On Sat, Apr 1, 2023 at 9:57?PM Bo Berglund via fpc-pascal <
>fpc-pascal@lists.freepascal.org> wrote:
>
>> Question:
>> Can I use Linux file system commands to read/write the data on the i2c
>&g
On Sun, 02 Apr 2023 15:07:48 -0400, Dennis Lee Bieber via fpc-pascal
wrote:
>On Sun, 02 Apr 2023 16:16:46 +0200, Bo Berglund via fpc-pascal
> declaimed
>the following:
>
>
>>
>>
>>Byte Write
>
On Sun, 2 Apr 2023 23:14:25 +0200, Christo Crause via fpc-pascal
wrote:
>On Sun, Apr 2, 2023 at 9:30?PM Bo Berglund via fpc-pascal <
>fpc-pascal@lists.freepascal.org> wrote:
>
>> Is there a reason that there is no i2c_write_reg demo in the github
>> package?
>>
On Mon, 3 Apr 2023 08:42:12 -0400, "Jeffrey A. Wormsley via fpc-pascal"
wrote:
>>
>> i2c_read_reg works too inasmuch as it does not error out, but it returns FF
>> whatever addres I read like the i2c-tools command does.
>> I am not sure that it is correct though...
>>
>
>Yes this is expected, as
>On Mon, Apr 3, 2023 at 10:53?AM Bo Berglund via fpc-pascal <
>fpc-pascal@lists.freepascal.org> wrote:
>
>> On Mon, 3 Apr 2023 08:42:12 -0400, "Jeffrey A. Wormsley via fpc-pascal"
>> wrote:
>>
>> >>
>> >> i2c_read_re
On Mon, 03 Apr 2023 20:55:43 +0200, Bo Berglund via fpc-pascal >On Mon, 3 Apr
2023 14:26:17 -0400, "Jeffrey A. Wormsley via fpc-pascal"
> wrote:
>
>>I've been using i2c and SPI eeproms for almost two decades. All of them
>>can read/write a single byte if
On Mon, 3 Apr 2023 14:37:48 -0400, "Jeffrey A. Wormsley via fpc-pascal"
wrote:
>I noticed you put the part number in the original email.
>
>Interestingly, the data sheet mentions 64 byte pages, and 1,000,000 erase
>cycles, but does not mention the need to erase a page before writing. So
>perhaps
On Mon, 03 Apr 2023 15:09:38 -0400, Dennis Lee Bieber via fpc-pascal
wrote:
>On Mon, 03 Apr 2023 20:55:43 +0200, Bo Berglund via fpc-pascal
> declaimed
>the following:
>
>>I just tested by writing four 0x00 bytes in a row, then verifying that the
>>memory read shows t
On Sun, 02 Apr 2023 23:21:38 +0200, Bo Berglund via fpc-pascal
wrote:
>On Sun, 2 Apr 2023 23:14:25 +0200, Christo Crause via fpc-pascal
> wrote:
>
>>On Sun, Apr 2, 2023 at 9:30?PM Bo Berglund via fpc-pascal <
>>fpc-pascal@lists.freepascal.org> wrote:
>>
>&
On Tue, 4 Apr 2023 23:43:21 +0200, Christo Crause via fpc-pascal
wrote:
>> if not i2cMaster.WriteBytesToReg(FEEPROMAddr, startaddress, @source[0],
>> NumBytes) then
>>
>> Here the source argument is a TBytes array of bytes so I supply the
>> address of
>> element 0 as the data argument (expected
On Wed, 05 Apr 2023 00:33:50 +0200, Bo Berglund via fpc-pascal
wrote:
>On Tue, 4 Apr 2023 23:43:21 +0200, Christo Crause via fpc-pascal
> wrote:
>
>
>>Is your startaddress variable an unsigned 16 bit integer
>>(word/uint16)? If not, type cast this to a uint16 to ensure
On Wed, 5 Apr 2023 11:40:09 +0200, Christo Crause via fpc-pascal
wrote:
>Looking at the datasheet for CAT24C128, Fig. 6 Byte Write Sequence, shows
>no repeated start condition between register address and data bytes. I
>suspect that the second i2c message should contain the I2C_M_NOSTART flag,
>el
On Wed, 5 Apr 2023 17:57:00 +0200, Christo Crause via fpc-pascal
wrote:
>The use of WriteBytesToReg in the TI2c_eeprom.WriteData method seems fine,
>perhaps retest with the updated WriteBytesToReg method.
I pulled the i2c.pas file from GitHub (actually downloaded the zip since I don't
really kno
On Mon, 23 Aug 2021 23:01:39 +0200, Bart via fpc-devel
wrote:
Replying here since my attempt at replying in the devel group failed...
>On Mon, Aug 23, 2021 at 8:04 PM Bart wrote:
>
>> And, of course, the guide on how to remove this utility
>> (https://www.intel.com/content/www/us/en/support/ar
I am wondering how to deal with this var or not in function calls:
In a processing program where I am building the command arguments for a write
operation by analyzing incoming commands and splitting the data such that the
write can be fully done by executing a series of smaller write commands for
On Thu, 13 Apr 2023 00:06:16 +0200, Sven Barth via fpc-pascal
wrote:
>Bo Berglund via fpc-pascal schrieb am
>Mi., 12. Apr. 2023, 21:17:
>
>> Now my question:
>>
>> Since I am modifying the WArgs variable inside the BuildArgumentsArray
>> f
I am transferring data via serial comm and they wind up inside a TBytes dyn
array.
Now I want to easily find a certain pattern of bytes inside that array, but how?
I have a cludge that does not feel right but works and I want to get it replaced
by the "correct" way of doing it.
So what I have don
On Thu, 20 Apr 2023 08:40:48 +0200 (CEST), Michael Van Canneyt via fpc-pascal
wrote:
>> I found this page:
>> https://www.freepascal.org/docs-html/rtl/system/copy.html
>>
>> Here there is also reference to the other functions for strings:
>> Delete (string and dyn array)
>> Copy(string and d
I have a device that sends data over the serial port with a timestamp in this
format:
(230424194642W)
This is coded as yymmddhhnnss and the last char designates daylight savings
(S)ummer or normal (W)inter time. In the example above it is W for normal winter
time.
What I have done so far is:
- R
On Tue, 25 Apr 2023 08:25:01 +0200 (CEST), Michael Van Canneyt via fpc-pascal
wrote:
>
>
>On Mon, 24 Apr 2023, Thomas Kurz via fpc-pascal wrote:
>
>> I always use ScanDateTime for such purposes:
>>
>> https://www.freepascal.org/docs-html/rtl/dateutils/scandatetime.html
>>
>> You can explicitly de
I am trying to create a function to list the available serial ports on a Linux
device. But I have trouble getting commands which work on a terminal to also
work when run from my console program.
When I run this conmmand in the terminal I get the correct reply:
$ ls -l /sys/class/tty/*/device/driv
On Mon, 1 May 2023 14:25:28 -0400, Travis Siegel via fpc-pascal
wrote:
>You could just add the line:
>
>#!/bin/bash
>
>to the first line of your script, then just call the script from your
>program.
>
>Alternatively, you could call the bash command, and pass the command to
>it that way, either
On Mon, 01 May 2023 11:00:56 -0400, Bo Berglund via fpc-pascal
wrote:
>I am trying to create a function to list the available serial ports on a Linux
>device. But I have trouble getting commands which work on a terminal to also
>work when run from my console program.
>
>When I ru
I am wondering if there is already available what I am needing?
My situation is the following:
I have a remote installation of a measuring equipment, which communicates
through RS232 to an RPi3 interface unit. On that there is a service that handles
the data sent both ways. But it is geared toward
On Fri, 3 Nov 2023 06:47:30 -0700, Wayne Sherman via fpc-pascal
wrote:
>Yes, there is software that bridges a serial connection over a
>network. On Windows it is often called a "virtual com port" or
>"virtual serial port" or "com port redirector".
>
>Open Source Linux:
>ser2net
>https://github.c
On Fri, 03 Nov 2023 17:34:09 +0100, Bo Berglund via fpc-pascal
wrote:
>So ser2net seems like a logical use given that the RPi3 is already there
>connected by wire to the serial line and is available via VPN on the network. I
>have just checked (using PuTTY via VPN) that the RPi3 doe
On Fri, 03 Nov 2023 19:47:01 +0100, Bo Berglund via fpc-pascal
wrote:
>I have now found that there is a Linux utility named socat, which apparently is
>able to map a serial port to a network socket server:
>
>https://www.acmesystems.it/socat
>
>Here they actually use ser2net as
I am maintaining an old utility program that started out about 20+ years ago
using Delphi7.
The utility communicates via RS232 with a measuring system in order to retrieve
and process recorded data and at the time this was started I used strings as
buffers for the serial comm.
A string at the tim
On Sun, 5 Nov 2023 10:36:47 +0100 (CET), Michael Van Canneyt via fpc-pascal
wrote:
>> So my question is this:
>> Is there a difference in handling the arguments between string, AnsiString,
>> RawByteString and TBytes in a declaration like this:
>>
>> function TSSConnection.ParseCmdFileData(var SS
>From the Lazarus list:
>Just a quick follow-up here:
>It seems like the fpc sources have not been updated with the solution to the
>bug
>discussed here:
>
>https://gitlab.com/freepascal.org/fpc/source/-/issues/39295
>
>This causes the build of Lazarus using fpcupdeluxe with the latest fpc 3.2.2
On Thu, 16 Nov 2023 08:19:17 +0100, Bo Berglund via fpc-pascal
wrote:
>I have tried every fpc source release from 3.2.2 up to trunk with the exact
>same
>result (here from a build try on trunk)
Forgot to mention that I am using fpcupdeluxe when installing fpc/lazarus on my
RPi4B with
I tried to post this to the devel list but it seems to have failed so now trying
the general list instead...
See ticket:
https://gitlab.com/freepascal.org/fpc/source/-/issues/39295
It was closed a year ago being purportedly resolved...
But only for powerpc 64 bit...
It is still there for aarch6
On Fri, 17 Nov 2023 11:27:53 +0100, Sven Barth via fpc-pascal
wrote:
>Bo Berglund via fpc-pascal schrieb am
>Do., 16. Nov. 2023, 08:19:
>
>> From the Lazarus list:
>>
>> >Just a quick follow-up here:
>> >It seems like the fpc sources have not been
On Sat, 18 Nov 2023 13:31:51 +0100, Sven Barth via fpc-pascal
wrote:
>Bo Berglund via fpc-pascal schrieb am
>Sa., 18. Nov. 2023, 11:32:
>
>> Today after realizing that I did the following on an RPi4B where I have
>> used apt
>> to install the fpc compiler so I
On Tue, 21 Nov 2023 10:33:46 +0100, Tomas Hajny via fpc-pascal
wrote:
>On November 21, 2023 8:33:55 +0100, Bo Berglund via fpc-pascal
> wrote:
>>I did not know that there is a library of seed compilers available on
>>Sourceforge, I thought everything had moved over to GitLab
I have for many years been building my Linux versions of fpc and lazarus from
sources downloaded first from the svn repository and later from github.
When doing the build on a new Linux system I need a seed compiler for the
platform and I usually get that from earlier builds on other devices.
To si
On Thu, 30 Nov 2023 10:50:02 +0100 (CET), Michael Van Canneyt via fpc-pascal
wrote:
>> Somewhere in the process above the newly built compiler/ppcarm disappears
>> from
>> the compiler dir
>>
>> Is this what should happen or is it an error?
>
>Because installing sources requires a 'clean' so
On Thu, 16 Nov 2023 13:15:27 +0100, Bo Berglund via fpc-pascal
wrote:
>I tried to post this to the devel list but it seems to have failed so now
>trying
>the general list instead...
>
>See ticket:
>https://gitlab.com/freepascal.org/fpc/source/-/issues/39295
>
>It was
I have been working on troubleshooting a command line FreePascal project for a
couple of weeks now and when I look in the project dir it is full of link files:
2021-09-12 10:2323 900 link.res
2024-01-15 00:3023 833 link11600.res
2024-01-13 10:3923 833 link172
I have been using FreePascal (and before that Delphi) for many years and it has
worked fine. I am now retired and only perform maintenance work.
And now I am getting a request for "signing" the applications (and/or possibly
the installers made by InnoSetup) and I have no idea on how to do this.
On Sat, 10 Aug 2024 13:32:12 +0200, Luca Olivetti via fpc-pascal
wrote:
>El 10/8/24 a les 11:28, Jeppe Johansen via fpc-pascal ha escrit:
>
>> It's fairly straight-forward to use this on executables. You point it at
>> the EXE and the code signing certificate you will use.
>
>I guess you'll have
On Mon, 16 Dec 2024 14:19:56 +0100 (CET), Michael Van Canneyt via fpc-pascal
wrote:
>
>
>On Mon, 16 Dec 2024, Bo Berglund via fpc-pascal wrote:
>
>> I have written a command line utility program on Linux using Lazarus as the
>> IDE.
>> This was done a while
I have written a command line utility program on Linux using Lazarus as the IDE.
This was done a while ago on an Ubuntu Desktop 20.04 machine, which I normally
access using VNC when doing Lazarus work there.
Now since a few months the TigerVNC server on that machinbe won't start anymore
so I canno
On Mon, 16 Dec 2024 15:06:45 +0100, Bo Berglund via fpc-pascal
wrote:
>On Mon, 16 Dec 2024 14:19:56 +0100 (CET), Michael Van Canneyt via fpc-pascal
> wrote:
>
>>
>>
>>On Mon, 16 Dec 2024, Bo Berglund via fpc-pascal wrote:
>>
>>> I have written a c
On Tue, 25 Feb 2025 22:47:29 +0100, Tomas Hajny via fpc-pascal
wrote:
>On 2025-02-25 22:09, Jean SUZINEAU via fpc-pascal wrote:
>> I haven't done it recently but basically on Windows you have keys in
>> the registry under HKEY_CLASSES_ROOT to associate your program with a
>> specific file extensi
I have created a Video Player application to be used in order to create the
ffmpeg command to edit a video file according to cut points evaluated inside the
program. I have used the PasLibVLC library for the video handling.
But I have found that it is also useful as a regular video player where I
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