Problem with integrating Qsys system in Quartus with created Qsys PWM module

I don't think this tab is here any more, but you don't need to generate software files from the component editor.

In your BSP you will find a system.h file. This should contain some defines with the base address of your component. For example if your component is called pwm, you will find a PWM_BASE constant.

Then from your code, include those two files and use the IORD / IOWR macros:

#include <system.h>
# include <io.h>
// read a register
IORD(PWM_BASE,reg_num);
// write a register
IOWR(PWM_BASE,reg_num, value);

reg_num is the register number, i.e. the value your component will see on the address vector when it is accessed.