On Thursday 16 Apr 2015 14:19:38 Sven Barth wrote:
> First of: I don't know whether non-Shortstrings are supported on embedded
> (I haven't played with that target yet). So my following tips are geared
> towards ShortString usage.
>
> Which compiler mode are you using? You should use either mode FPC or at
> most ObjFPC. Mode Delphi will switch on AnsiString. In any case you should
> ensure that you haven't enabled AnsiStrings using $H+ (simply disable the
> directive in that case).
> Additionally you could declare your String variables explicitly as
> ShortString instead of String.
>
> Regards,
> Sven
I've tried mode FPC and ObjFPC with both long and short strings. I have just
tried again with the ShortString type as well (I've included the whole main
unit code below for reference).
I suspect that I need to link additional object files that support the string
handling, but I don't know which ones, nor if this is possible with the
embedded compiler?
Thanks,
Paul
--------------------------------------------
Unit Main;
{$Mode FPC}
{$LongStrings OFF}
Interface
Uses
NRF51, UART;
Function Main: Integer; Cdecl;
Implementation
Function Main: Integer; Cdecl; Alias: 'main';
Const
RXDPIN = 11;
TXDPIN = 9;
CTSPIN = 10;
RTSPIN = 8;
Var
Text: ShortString;
Begin
Text := 'Hello World';
UARTConfigure(RTSPIN, TXDPIN, CTSPIN, RXDPIN, True);
UARTPutString(Text);
End;
End.
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