Op 08-03-16 om 19:50 schreef Bo Berglund:
In PiGpio I added the following (roundabout line #20:
{$DEFINE RPi2}
const
REG_GPIO = {$IFDEF RPi2} $3F000 {$ELSE} $20000
{$ENDIF};//bcm2835/bcm2836 gpio register 0x2000 0000. new fpMap uses
page offset, one page is 4096bytes
then later down in the file (around line #150):
function TIoDriver.MapIo: boolean;
begin
Result := True;
{$IFDEF RPi2}
fd := fpopen('/dev/gpiomem', O_RdWr or O_Sync); // Open the master
/dev/memory device
{$ELSE}
fd := fpopen('/dev/mem', O_RdWr or O_Sync); // Open the master
/dev/memory device
{$ENDIF}
I do not know for a fact tha the second change is because of the RPi2
hardware, it was probably put there in order to make my program run as
a normal user rather than su.
Well, that's what I did, although without the conditionals.
Did you try PWM, e.g. with the demo-program ? Does it work ?
Koenraad.
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