Rockbox Development > New Ports

Altera DE1 FPGA BOARD - Porting Rockbox to a softcore CPU (NIOS II)

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mdipolt:
I am student from the FH Hagenberg in Austria and my bachelor thesis is about porting Rockbox to a softcore cpu like the NIOS II from Altera.

I will use the Altera DE1 Board to port Rockbox.
The Board has following features:

Cyclone II EPC20F484C7N FPGA
8MB SDRAM
512 KB SSRAM
10 Switches
4 Keys
4 7-Segments
SD Card Slot
RS232
WM9731 Audio Decoder with I2C

DE1 Board: http://www.altera.com/education/univ/materials/boards/de1/unv-de1-board.html
Touch Display for the DE1 Board: http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&No=213

Infos about the NIOS2, a softcore processor which run in the fpga: http://en.wikipedia.org/wiki/Nios_II

I just started and will inform you about the working pogress.

JdGordon:
sounds like fun. good luck :)

mdipolt:
thx, now i can configure the codec over I2C.

sdram, serial, leds, key works also next step i am working on is to generate sound with a parallel 2 I2s converter in hardware.

the next were: sdcard access and display output(maye with vga or external display with touch)

markun:
Do you have some public place where you document what you are doing? Perhaps you could use the rockbox wiki.

I see that NIOS II is compatible with the wishbone bus, do you use any cores from opencores.org? I'm just curious but have no experience with it myself :)

mdipolt:
I havent create a new port page on wiki yet, i will create it now

where did you read that the nios II is compatible with the wishbone bus?

i want use the sdio core for sd card access http://opencores.org/project,sdhc-sc-core but the nios II i created with the qsys builder(new program as replacement for the sopc builder) uses the avalon bus.

The avalon and wishbone bus should be similiar and connectable, but i havent tried it yet.

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