Hi
A bit more progress
To better understand how stuff works I have done the following
On a XP installation I have Nios 8.1 and Quartus II 8.1
from
http://www.bitec.ltd.uk/ciii_video_dev_kit.html I have taken the Quad demo
http://www.bitec.ltd.uk/outgoing/bitec_hsmc_quad_video_28mar08.zip This demo do genererate a VGA out 640x480
and you can input 4 composite video which will be scaled and you can see up to 4 live input at the output like a quad split
First I do copy all the files from the demo to C:/altera/Bitec/bitec_hsmc_quad_video
I now follow the instrucrion in the pdf file
Now it all works fine as described in the doc
I have managed to mod a bit on the position of the input to the frame buffer
and if I connect the 3 input in parrallel with some wire I do see the same video in 3 windows on the output
http://www.tech2net.dk/media/still_01.jpg So instead of having the wire parrallel I now mowe to Quartus II and select open exsisting project and browse to
C:\altera\bitec\bitec_hsmc_quad_video\QuartusII_7.2\hsmc_qvideo_C120_dev_kit_mosaic_dvi.qpf file and open it
Before I try to modify anything I do a start compilation and after long time I do have some errors like
Info: Type bi-directional pin membot_dq[18] uses the SSTL-18 Class I I/O standard
Info: Type bi-directional pin membot_dq[2] uses the SSTL-18 Class I I/O standard
Info: Following pins have the same output enable: nios2:inst|i2c:the_i2c|oc_i2c_master:the_oc_i2c_master|i2c_master_top:i2c_top_inst|i2c_master_byte_ctrl:u1|i2c_master_bit_ctrl:u1|iscl_oen (inverted)
Info: Type bi-directional pin SCL uses the 2.5 V I/O standard
Info: Following pins have the same output enable: nios2:inst|i2c:the_i2c|oc_i2c_master:the_oc_i2c_master|i2c_master_top:i2c_top_inst|i2c_master_byte_ctrl:u1|i2c_master_bit_ctrl:u1|isda_oen (inverted)
Info: Type bi-directional pin SDA uses the 2.5 V I/O standard
Error: Quartus II Fitter was unsuccessful. 2 errors, 22 warnings
Error: Peak virtual memory: 331 megabytes
Error: Processing ended: Sat Jan 24 17:47:37 2009
Error: Elapsed time: 00:00:16
Error: Total CPU time (on all processors): 00:00:15
Error: Quartus II Full Compilation was unsuccessful. 4 errors, 15 warnings
So now I would like to know what I do wrong
Pleae let me know if you have sugestions
Thank you
Wiljan