On Thu, 08 Oct 2015 23:30:10 +0200, Bo Berglund <[email protected]> wrote:
>I have found a description of a unit implementing an interface to the >gpio driver in the Free Pascal documentation. It is here: >http://wiki.freepascal.org/Lazarus_on_Raspberry_Pi#5._PiGpio_Low-level_native_pascal_unit_.28GPIO_control_instead_of_wiringPi_c_library.29 > >However, it specifically lists the BCM2835 chip and not the BCM2836 >which is used on the Pi2. > >So I wonder if anyone here knows about an updated gpio.pas file which >works on the Pi2? I have solved the problem now. This is how I modified pigpio.pas: 1) I added a define for RPI2 and used it in a conditional to set the REG_GPIO constant to $3F000 or $20000 2) I changed the device from /dev/mem to /dev/gpiomem This allowed the generated program to run as user pi. 3) I also added the Pi connector mapping defines into pigpio.pas so that any user program does not have to enter this in its own code. Just use RPI_P12 or similar in the user code. Apart from this pigpio.pas stays the same as before. Thanks to all that helped me come to this result! -- Bo Berglund Developer in Sweden -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
