Chapter 2
Including the driver in the project
The driver is included in the project as soon as the driver is added to the project main
file and the inputs and outputs are connected in the control algorithms.
2.1
Adding the
RPiDrv
driver
The project main file with the
RPiDrv
driver included is shown in Figure
2.1
.
There are 2 blocks which must be added to the project to include the driver. First the
MODULE
block is attached the the
Modules
output of the
EXEC
function block. It must be
renamed to
RPiDrv
.
The other block of type
IODRV
is connected to the
Drivers
output of the main
EXEC
block. The name of this block (
RPI
, see Fig.
2.1
), is the prefix of all input and output
signals provided by this driver. It is recommended to name the
IODRV
block according
to the used platform:
•
RPI
– Raspberry Pi GPIO, PiFace Digital expansion board
•
UNP
– UniPi expansion board
•
PIO
– Intellisys PIO platform
The most important parameters of
IODRV
block are:
module
– name of the module linked to the driver, in this case
RPiDrv
– the name is
CASE SENSITIVE!
classname
– class of the driver – the name is CASE SENSITIVE!
•
RPiDrv
– Raspberry Pi GPIO, PiFace Digital expansion board
•
UnpDrv
– UniPi expansion board
•
PioDrv
– Intellisys PIO platform
cfgname
– name of the driver configuration file, but this driver does not use any
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