[fpc-devel] Teensy (no OS) programmed with Free Pascal Embedded ARM

Michael Ring mail at michael-ring.org
Sun Oct 11 22:10:05 CEST 2015

Wow Jeppe, I am impressed, you used your time much better than I did, 
your port looks pretty complete!

Please have a look at


this lib was mentioned yesterday on lazarus list, this looks like a good 
layer above the lowlevel code, there are already implementations for 
several sensors and displays and it already supports Raspberry Pi.

The Author is also thinking about extending the lib in the direction of 
microcontrollers, so those two efforts combined could some day get a 
very user friendly solution that is a lot closer to what mbed is for the 
C guy today to what we have right now.


Am 11.10.15 um 21:53 schrieb Jeppe Johansen:
> On 10/11/2015 03:54 PM, Paul Breneman wrote:
>> On 10/10/2015 01:49 PM, Paul Breneman wrote:
>>> On 05/28/2015 08:45 AM, Paul Breneman wrote:
>>>> Wow, yesterday I started this new message:
>>>> http://forum.lazarus.freepascal.org/index.php/topic,28561.0.html
>>>> And today Laksen says it's committed to SVN trunk.  That was fast!
>>>> Thanks to all the FPC developers!
>>> And today I finally made my first release:
>>>    http://turbocontrol.com/simpleteensy.htm
>>> Can I put the 3 files (as, ld, objcopy) in my zip?
>> Since those files were on the freepascal.org site I figured it must 
>> be OK so I added all 6 of them and released a new 10 MB zip (also has 
>> the entire RTL for the release).
>> ********
>> I left a message in this forum thread:
>> https://forum.pjrc.com/threads/28518-Teensy-with-Freepascal
>> Got a reply with lots of questions:
>> How easy is it to do all the common hardware things from Freepascal? 
>> How much low-level setup is required use digital and analog I/O? Can 
>> you use the serial ports? Timers? Capacitive touch sensing? Can you 
>> even access the registers without porting a massive header file? Is 
>> it possible to link with existing C or C++ libraries?
>> Any quick summary anyone would like for me to post as a response? 
>> Please write back here if you don't want to register on that forum.
> Posted a reply there.
> But anyway, it's not very positive. There's nothing but the bare core 
> so far.
> If anyone is interested in diving into FPC+embedded I can much more 
> readily recommend STM32 micros. In particular the STM32F746GDISCOVERY 
> board is pretty awesome for $50 (208 MHz, 8 MB RAM, eth+lcd+stuff). I 
> have been porting a pretty big part of the firmware library over here: 
> https://github.com/Laksen/fp-stm32f7xx_hal
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