Avalon-MM master burst transfer

Hi,

Check this document link https://faculty-web.msoe.edu/johnsontimoj/Common/FILES/n2cpu-nii5v1gen2.pdf (page 107, 108). Just need to enable the Add burstcount signal to instruction_master. Not need to set the burstcount parameter on Nios, burst adapters will be inserted for the burst compatibility between Nios (master) to the FPGA fabric (slave).

Thanks,

Regards,

Sheng