I am looking for HPS to FPGA custom component integrations guideline using Qsys. I have De0 nano SoC board. I am new to SoC FPGA programming. I still could not found a material or tutorial for HPS to custom VHDL or Verilog component integration. I need to get to know what are the connections that I should make and how to/ where to declare them in C code on ARM processor and the entity of the FPGA custom designed component. Can any body post some links.
I have read following tutorials from Altera. Avalon Interface Specifications pdf, ARM_A9_intro_intelfpga pdf, Intel_FPGA_Monitor_Program_ARM pdf, making qsys component pdf, Using_GIC - ARM HPS pdf, External_Bus_to_Avalon_Bridge -nios II pdf, Avalon_to_External_Bus_Bridge nios II pdf, DE0-Nano-SoC_Computer_ARM pdf.