Hi, On Fri, Mar 18, 2011 at 8:07 PM, Cristian Paul Peñaranda Rojas < [email protected]> wrote:
> > Yes, just ground the video output signals going to the DAC in the > > Verilog source. > > S. > > about that how to modify video RGB output & control signals from fpga in verilog, please check IRC logs in http://en.qi-hardware.com/mmlogs/milkymist_2011-03-22.log.html Xiangfu and me followed Sebastien's instructions to modify system.v under boards/milkymist-one/rtl/ folder, you need grep https://github.com/lekernel/milkymist sources. Xiangfu also did a build_bitstream.sh, so you could use it after pulling down RGB. so this confirms that the rc2 audio line-out noise is irrelevant to video high frequency digital signals. -adam 1. //--------------------------------------------------------------------------- 2. // VGA 3. //--------------------------------------------------------------------------- 4. vga #( 5. .csr_addr(4'h3), 6. .fml_depth(`SDRAM_DEPTH) 7. ) vga ( 8. .sys_clk(sys_clk), 9. .sys_rst(sys_rst), 10. 11. .csr_a(csr_a), 12. .csr_we(csr_we), 13. .csr_di(csr_dw), 14. .csr_do(csr_dr_vga), 15. 16. .fml_adr(fml_vga_adr), 17. .fml_stb(fml_vga_stb), 18. .fml_ack(fml_vga_ack), 19. .fml_di(fml_vga_dr), 20. 21. .dcb_stb(dcb_stb), 22. .dcb_adr(dcb_adr), 23. .dcb_dat(dcb_dat), 24. .dcb_hit(dcb_hit) 25. ); 26. 27. assign vga_psave_n = 1; 28. assign vga_hsync_n = 1; 29. assign vga_vsync_n = 1; 30. assign vga_r = 0; 31. assign vga_g = 0; 32. assign vga_b = 0; 33. assign vga_clk = 0; 34. assign vga_sda = 1'bz; 35. assign vga_sdc = 1'bz;
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