[fpc-pascal] FPC embedded ?

Curious to know hands-on experience of list-members with FreePascal embedded. Arduino looks quite attractive to me, but it's not Pascal. Any recommendations ? Regards, Adriaan van Os ___ fpc-pascal maillist - fpc-pascal@lists.fr

Re: [fpc-pascal] Suggestion: TDataSetEnumerator

On Wed, 4 Mar 2015, silvioprog wrote: Hello, What do you think about a TDataSetEnumerator class in the DB unit? Something like this: Good idea. I never implemented it because I didn't know what to return. But maybe returning the dataset itself is not a bad idea. If you implement it using t

Re: [fpc-pascal] [PATCH] Add Oid_JSON in pqconnection unit

On Wed, 4 Mar 2015, silvioprog wrote: Hello, The patch allows to use this ... :     select row_to_json(row(1,'foo')) ... instead of this (in this case, the ::text cast avoids the "Missing (compatible) underlying dataset, can not open" error): I think you better cast it to ftMemo instead o

Re: [fpc-pascal] Suggestion: TDataSetEnumerator

On Thu, Mar 5, 2015 at 2:11 AM, silvioprog wrote: > What do you think about a TDataSetEnumerator class in the DB unit? > Something like this: > > === begin code === > > function TDataSetEnumerator.MoveNext: Boolean; > begin > Inc(FPosition); > if FPosition = FDataSet.RecordCount then > Ex

Re: [fpc-pascal] FPC embedded ?

Adriaan van Os wrote: Curious to know hands-on experience of list-members with FreePascal embedded. Arduino looks quite attractive to me, but it's not Pascal. Any recommendations ? Raspberry Pi is a possibility, but my experience is that it has reliability problems which

Re: [fpc-pascal] FPC embedded ?

If you are interested in bare metal development (without linux as a host OS) then the ST Nucleo boards are a very interesting choice, they come with an integrated ST-Link Debugger interface and have Arduino-compatible headers. Cost is about €12,-- Make sure to get a model with Cortex-M3 or Cor

Re: [fpc-pascal] FPC embedded ?

In our previous episode, Adriaan van Os said: > Curious to know hands-on experience of list-members with FreePascal > embedded. Arduino looks quite attractive to me, but > it's not Pascal. Any recommendations ? I'm more from the microchip side of the fence, but some truths I

Re: [fpc-pascal] FPC embedded ?

On 03/05/2015 11:26 AM, Michael Ring wrote: If you are interested in bare metal development (without linux as a host OS) then the ST Nucleo boards In fact I would be interested in "in bare metal development" on PIC32 chips. with those you can very easily and cheap do as well low-volume projects

Re: [fpc-pascal] FPC embedded ?

On 03/05/2015 11:42 AM, Marco van de Voort wrote: We currently use the 144pin dsPIC33EP512mu814, mostly serial, but the next generation will have TCP/IP (using wiznet w5500). We did the migration from PIC24 to PIC32. That chip family is really great and as it is MIPS, an fpc compiler already

Re: [fpc-pascal] Use sleep in thread

Le 25/02/2015 15:41, Xiangrong Fang a écrit : Hi All, Can I use Sleep() in a thread to give up cpu time to other threads running at the same time, so as to adjust the relative "niceness" of a group of workers working on the same subject (in which each thread take part of the whole task). Th

Re: [fpc-pascal] FPC embedded ?

On 03/05/2015 11:42 AM, Marco van de Voort wrote: the next generation will have TCP/IP (using wiznet w5500) AFAIK there are PIC32 chips with MAC on board so you just need a small PHY chip (or a switch chip). Another easy option is a Microchip MAC/PHY chip with SPI interface to the processor

Re: [fpc-pascal] FPC embedded ?

I have 7 RPis and all have been very reliable. One has been up, running a webcam, for over 5 months without pause. Another controls my central heating. Others are file server and garage MP3 player. All have Free Pascal installed. Mark Morgan Lloyd wrote the following on 05/03/15 10:12:44:

Re: [fpc-pascal] FPC embedded ?

In our previous episode, Michael Schnell said: > > the next generation will have TCP/IP (using wiznet w5500) > > AFAIK there are PIC32 chips with MAC on board so you just need a small > PHY chip (or a switch chip). I've used such solutions in the past, but actually I'm quite happy with the curre

Re: [fpc-pascal] [PATCH] Add Oid_JSON in pqconnection unit

On Thu, Mar 5, 2015 at 6:25 AM, Michael Van Canneyt wrote: > > On Wed, 4 Mar 2015, silvioprog wrote: > >> Hello, >> The patch allows to use this ... : >> >> select row_to_json(row(1,'foo')) >> >> ... instead of this (in this case, the ::text cast avoids the "Missing >> (compatible) underlying

Re: [fpc-pascal] Is there a CSS parser in FPC?

On 03/03/2015 07:41 AM, Graeme Geldenhuys wrote: Hi, As the subject says, I would like to know if there is a CSS parser included with FPC (2.6.4 or Trunk)? No issue if there isn't, as I might not initially need one for the project I want to start - but looking around in the mean time wouldn't hu

Re: [fpc-pascal] Suggestion: TDataSetEnumerator

On Thu, Mar 5, 2015 at 6:15 AM, Michael Van Canneyt wrote: > > On Wed, 4 Mar 2015, silvioprog wrote: > >> Hello, >> What do you think about a TDataSetEnumerator class in the DB unit? >> Something like this: >> > > Good idea. I never implemented it because I didn't know what to return. > But maybe

Re: [fpc-pascal] Suggestion: TDataSetEnumerator

On Thu, Mar 5, 2015 at 6:48 AM, Constantine Yannakopoulos < alfasud...@gmail.com> wrote: > On Thu, Mar 5, 2015 at 2:11 AM, silvioprog wrote: > >> What do you think about a TDataSetEnumerator class in the DB unit? >> Something like this: >> >> === begin code === >> >> > function TDataSetEnumerator

Re: [fpc-pascal] Is there a CSS parser in FPC?

On 2015-03-05 14:47, Andrew Haines wrote: > It was > added for lazarus/lhelp and wasn't part of the original ipro component > so it's mostly separated from ipro. Thank you Andrew. I'll take a second look. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal

Re: [fpc-pascal] Linux x64 linking error (FPC_ABSMASK_SINGLE)

Thank you for the explanations! -fPIC solves my problem. 02.03.2015 16:49, Jonas Maebe пишет: On 02 Mar 2015, at 09:14, Victor Matuzenko wrote: I have a (very) huge project, and compilation of a shared library inside it fails at the linking stage: /usr/bin/ld: : relocation R_X86_64_32S aga

Re: [fpc-pascal] FPC embedded ?

Marco van de Voort wrote: - If you need it for automation in factories: get something with hardware quadrature encoder and motor control support. It saves having to do something custom again the first time you have to do something linked to a conveyer belt. It's a very smal project but I

Re: [fpc-pascal] FPC embedded ? (going slightly off-topic)

On 05 Mar 2015, at 19:57, Adriaan van Os wrote: > > It's a very smal project but I do need to drive one or two stepper motors. > What I learnt is that that the board does the controlling and that there is a > separate chip for driving the motor, e.g. for stepping and microstepping ? Stepping a

Re: [fpc-pascal] AddTerminateProc leak?

On Wed, Mar 4, 2015 at 11:45 PM, silvioprog wrote: > Hello, > > The test: > > === begin code === > > program project1; > > uses > heaptrc, > SysUtils; > > function _Finalize: boolean; > begin > WriteLn('END'); > Result := True; > end; > > begin > WriteLn('START'); > AddTermi

Re: [fpc-pascal] [Windows] FileGetAttr reports faHidden on e.g. C:\

El 04/03/2015 a las 16:01, Bart escribió: Hi, Kind of off-topic. While working on Lazarus' TShellTreeView component, it was brought to my attention that FileGetAttr('C:\') returns an attribute that has faHidden in it. This is kind of unexpected. Well actually it reports $16: faDirectory + faHidde

Re: [fpc-pascal] FPC embedded ? (going slightly off-topic)

On 05/03/2015 19:28, Ewald wrote: On 05 Mar 2015, at 19:57, Adriaan van Os wrote: It's a very smal project but I do need to drive one or two stepper motors. What I learnt is that that the board does the controlling and that there is a separate chip for driving the motor, e.g. for stepping an

[fpc-pascal] fpGUI - UI Designer - place own components ?

Hi, yesterday I tried fpGUI the first time - I only compiled the examples just to see how it looks. Now I "google and google" for an answer to the question, how to make descendants from the fpGUI visual components and then place my own derived Components into the component palette of